Organometallic Compounds
Oligonucleotide-europium complex conjugate designed to cleave the 5' cap structure of the ICAM-1 transcript potentiates antisense activity in cells. (1/3714)
The 5' cap structure of mRNA is a N7 methylated guanosine residue that is linked by a 5'-5' triphosphate linkage to the 5'-terminus of cellular and viral RNAs synthesized by RNA polymerase II. This unique structure facilitates several processes of mRNA metabolism, including splicing, nucleocytoplasmic transport,initiation of translation, and degradation. Previous research has demonstrated that the lanthanide macrocycle complex, Eu(THED)3+, effectively cleaves the 5' cap structure of mRNA in solution by nucleophilic attack of the triphosphate linkage via the metal-activated hydroxyethyl group of the THED ligand. This report shows that attachment of a Eu(THED)3+analog to the 3'-terminus of an antisense oligonucleotide, which targets the 5'-terminus of the intercellular adhesion molecule 1 mRNA, potentiates the inhibitory activity of the antisense oligonucleotide in cytokine-treatedendothelial cells. (+info)Antimicrobial activities of synthetic bismuth compounds against Clostridium difficile. (2/3714)
Clostridium difficile is a major nosocomial pathogen responsible for pseudomembranous colitis and many cases of antibiotic-associated diarrhea. Because of potential relapse of disease with current antimicrobial therapy protocols, there is a need for additional and/or alternative antimicrobial agents for the treatment of disease caused by C. difficile. We have synthesized a systematic series of 14 structurally simple bismuth compounds and assessed their biological activities against C. difficile and four other gastrointestinal species, including Helicobacter pylori. Here, we report on the activities of six compounds that exhibit antibacterial activities against C. difficile, and some of the compounds have MICs of less than 1 microgram/ml. Also tested, for comparison, were the activities of bismuth subcitrate and ranitidine bismuth citrate obtained from commercial sources. C. difficile and H. pylori were more sensitive both to the synthetic bismuth compounds and to the commercial products than were Escherichia coli, Pseudomonas aeruginosa, and Proteus mirabilis, and the last three species were markedly resistant to the commercial bismuth salts. Testing with human foreskin fibroblast cells revealed that some of the synthetic compounds were more cytotoxic than others. Killing curves for C. difficile treated with the more active compounds revealed rapid death, and electron microscopy showed that the bismuth of these compounds was rapidly incorporated by C. difficile. Energy dispersive spectroscopy X-ray microanalysis of C. difficile cells containing electron-dense material confirmed the presence of internalized bismuth. Internalized bismuth was not observed in C. difficile treated with synthetic bismuth compounds that lacked antimicrobial activity, which suggests that the uptake of the metal is required for killing activity. The nature of the carrier would seem to determine whether bismuth is transported into susceptible bacteria like C. difficile. (+info)Concatemerization of tRNA molecules in the presence of trivaline derivative. (3/3714)
The interaction of tRNA with trivaline dansyl hydrazide trifluoroacetate (DHTV) has been studied. The shape of curves of fluorimetric titration of tRNA with DHTV and vice versa can be explained only by formation of DHTV dimers on tRNA molecules, and subsequent association of DHTV-saturated tRNA molecules with each other. The ability of tRNA molecules to form concatemers in solution in the presence of DHTV has been demonstrated by electron microscopy. Electron microscopy of the tRNA-DHTV complexes stained with uranyl acetate revealed flexible rods 6-7 nm thick and up to several micrometers long. (+info)Determining anomericity of the glycosidic bond in Zn(II)-diethylenetriamine-disaccharide complexes using MSn in a quadrupole ion trap. (4/3714)
Zinc-diethylenetriamine (Zn-dien) N-glycoside complexes of four 1,4 and four 1,6 linked disaccharides are prepared. Each reaction mixture is ionized by electrospray and the resulting species [Zn(dien)(disaccharide)-H]+ is allowed to undergo collision-induced dissociation in a quadrupole ion trap. An MS3 analysis is used to differentiate alpha versus beta anomericity of the glycosidic bond in the disaccharide moiety. In addition, the MS2 and MS3 spectra can be used together to determine the linkage position of this glycosidic bond. (+info)Effects of vanadium complexes with organic ligands on glucose metabolism: a comparison study in diabetic rats. (5/3714)
1. Vanadium compounds can mimic actions of insulin through alternative signalling pathways. The effects of three organic vanadium compounds were studied in non-ketotic, streptozotocin-diabetic rats: vanadyl acetylacetonate (VAc), vanadyl 3-ethylacetylacetonate (VEt), and bis(maltolato)oxovanadium (VM). A simple inorganic vanadium salt, vanadyl sulphate (VS) was also studied. 2. Oral administration of the three organic vanadium compounds (125 mg vanadium element 1(-1) in drinking fluids) for up to 3 months induced a faster and larger fall in glycemia (VAc being the most potent) than VS. Glucosuria and tolerance to a glucose load were improved accordingly. 3. Activities and mRNA levels of key glycolytic enzymes (glucokinase and L-type pyruvate kinase) which are suppressed in the diabetic liver, were restored by vanadium treatment. The organic forms showed greater efficacy than VS, especially VAc. 4. VAc rats exhibited the highest levels of plasma or tissue vanadium, most likely due to a greater intestinal absorption. However, VAc retained its potency when given as a single i.p. injection to diabetic rats. Moreover, there was no relationship between plasma or tissue vanadium levels and any parameters of glucose homeostasis and hepatic glucose metabolism. Thus, these data suggest that differences in potency between compounds are due to differences in their insulin-like properties. 5. There was no marked toxicity observed on hepatic or renal function. However, diarrhoea occurred in 50% of rats chronically treated with VS, but not in those receiving the organic compounds. 6. In conclusion, organic vanadium compounds, in particular VAc, correct the hyperglycemia and impaired hepatic glycolysis of diabetic rats more safely and potently than VS. This is not simply due to improved intestinal absorption, indicating more potent insulin-like properties. (+info)Biodistribution, radiation dosimetry and pharmacokinetics of 111In-antimyosin in idiopathic inflammatory myopathies. (6/3714)
In view of the established role of 111In-antimyosin in the detection of heart muscle pathology, radiation dose estimates were made for this substance. Biodistribution and biokinetic data were obtained from our studies, which failed to show abnormal uptake of 111In-antimyosin in localized sites of skeletal muscle involvement in patients with idiopathic inflammatory myopathies. METHODS: After intravenous administration of 74 MBq (2 mCi) 111In-antimyosin, gamma camera scintigraphy was performed in 12 adult patients with inflammatory muscle disease and in 2 control patients. Six whole-body scans were performed over 72 h, and uptake of 111In-antimyosin in organs was quantified using an attenuation-corrected conjugate counting method. Residence times in source organs were used with MIRDOSE software to obtain radiation dose estimates. Pharmacokinetic parameters were derived from serial whole-blood and plasma 111In concentrations. RESULTS: The tracer cleared slowly from the circulation, and highest organ uptakes were found in the marrow and liver; kidneys showed the highest concentrations. Uptake was also evident in spleen, the facial image and male genitalia. CONCLUSION: For a typical administered activity of 74 MBq 111In-antimyosin, the kidneys receive the highest dose (58 mSv), and the effective dose is 11 mSv. Radioactivity was cleared from plasma at an average rate of 136 mL/h, and the mean steady-state distribution was approximately 5 L plasma. (+info)Oxidized low-density lipoprotein as a delivery system for photosensitizers: implications for photodynamic therapy of atherosclerosis. (7/3714)
Photodynamic therapy is a promising new strategy in the treatment of cardiovascular diseases. Photodynamic therapy for vascular diseases may be improved by the specific delivery of photosensitizers to the atherosclerotic lesion. In this study, we studied whether oxidatively modified low-density lipoprotein (OxLDL) could be used as a specific carrier for photosensitizers, thereby using the scavenger receptor expressed on macrophages as a target. The photosensitizer aluminum phthalocyanine chloride (AlPc) was incorporated into OxLDL, and its photodynamic effects were studied. Macrophages (RAW 264.7) were incubated with various concentrations of OxLDL-AlPc for different periods. After illumination of the cells with red light, cytotoxicity was observed that was dependent on the time of illumination and incubation. Macrophages incubated with OxLDL-AlPc that were not illuminated revealed no cytotoxicity. The uptake of the OxLDL-AlPc complexes was mediated by scavenger receptors expressed on macrophages. In the presence of the polyanion polyinosinic acid, a specific ligand for scavenger receptors, no cytotoxicity could be observed. Serum incubations of the OxLDL-AlPc complexes revealed that these complexes stay intact after incubation. No redistribution of AlPc to other plasma (lipo-) proteins could be detected, and 80-90% of the AlPc remained associated with the OxLDL particle. These results indicate that OxLDL may function as a specific delivery system for photosensitizers to the scavenger receptors expressed on the macrophages in the atherosclerotic lesion, increasing the beneficial effects of photodynamic therapy for cardiovascular diseases. (+info)In vitro cell cycle arrest, in vivo action on solid metastasizing tumors, and host toxicity of the antimetastatic drug NAMI-A and cisplatin. (8/3714)
The effects of NAMI-A (imidazolium trans-imidazoledimethyl sulfoxide-tetrachlororuthenate) are compared with cisplatin on tumor cells cultured in vitro at doses of 1 to 100 microM and on tumor metastases in vivo at maximum tolerated doses. Using mouse tumors that metastasize to the lungs, NAMI-A given i.p. for 6 consecutive days at 35 mg/kg/day, was effective independently of the tumor line being treated and of the stage of metastasis growth. Conversely, cisplatin (2 mg/kg/day for 6 days) was as effective as NAMI-A on MCa mammary carcinoma and TS/A adenocarcinoma and less effective than NAMI-A on Lewis lung carcinoma. Cisplatin reduced body weight gain and spleen weight during treatment and was much more toxic than NAMI-A on liver sinusoids, kidney tubules, and lung epithelium. In vitro NAMI-A caused a transient cell cycle arrest of tumor cells in the premitotic G2/M phase, whereas cisplatin caused a progressive dose-dependent disruption of cell cycle phases. Correspondingly, NAMI-A did not modify cell growth, whereas cisplatin caused a dose-dependent reduction of cell proliferation, as determined by sulforhodamine B test. Thus, NAMI-A, unlike cisplatin, is a potent agent for the treatment of solid tumor metastases as well as when these tumor lesions are in an advanced stage of growth. NAMI-A is endowed with a mechanism of action unrelated to direct tumor cell cytotoxicity, and such mechanism of action is responsible for a reduced host toxicity. (+info)Organometallic compounds are a type of chemical compound that contain at least one metal-carbon bond. This means that the metal is directly attached to carbon atom(s) from an organic molecule. These compounds can be synthesized through various methods, and they have found widespread use in industrial and medicinal applications, including catalysis, polymerization, and pharmaceuticals.
It's worth noting that while organometallic compounds contain metal-carbon bonds, not all compounds with metal-carbon bonds are considered organometallic. For example, in classical inorganic chemistry, simple salts of metal carbonyls (M(CO)n) are not typically classified as organometallic, but rather as metal carbonyl complexes. The distinction between these classes of compounds can sometimes be subtle and is a matter of ongoing debate among chemists.
I'm sorry for any confusion, but "Ruthenium" is not a medical term. It is a chemical element with the symbol "Ru" and atomic number 44. Ruthenium is a transition metal that belongs to the platinum group. It is typically found in ores alongside other platinum group metals and is used in various industrial applications, such as electrical contacts and wear-resistant surfaces. It does not have direct relevance to medical terminology or healthcare.
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Synthesis5
- Use of a swivel frit assembly in the synthesis of air sensitive compounds is described along procedures for the addition of gases, volatile and nonvolatile liquids and solutions to reaction mixtures. (caltech.edu)
- While the Grignard reagent is an organic compound using magnesium (Mg), the organometallic compound using lithium (Li) is also well known and widely used in chemical synthesis. (hatsudy.com)
- These compounds have many applications such as catalysts for polymerization and organic synthesis and raw materials for high performance electronic materials. (nichia.co.jp)
- Berzelius also contended that compounds could be distinguished by whether they required any organisms in their synthesis (organic compounds) or whether they did not ( inorganic compounds ). (wikipedia.org)
- The course also covers typical reactions within organometallic chemistry, the use of organometallic reagents in catalysis and organic synthesis, and databases in chemistry. (lu.se)
Metals6
- Such properties have facilitated the development of a rich and diverse reaction chemistry for compounds of the group 4 transition metals with pentamethylcyclopentadienyl ancillary ligands. (caltech.edu)
- Among these metals, there are compounds that have metals in their molecules. (hatsudy.com)
- So, can we freely make organometallic compounds by reacting alkyl halides with metals? (hatsudy.com)
- and other organometallic compounds that contain heavy metals. (cdc.gov)
- First of all they established the concept by preparing similar compounds with a great number of other metals. (nobelprize.org)
- The course has a molecular perspective and a further aim to enable students to develop their ability to describe the structure and reactivity of coordination compounds and their applications in organometallic chemistry and homogeneous catalysis, and the significance of metals in biological systems. (lu.se)
Reactions4
- And how can we use organometallic compounds in synthetic reactions? (hatsudy.com)
- The study of the properties, reactions, and syntheses of organic compounds comprise the discipline known as organic chemistry . (wikipedia.org)
- Organic chemists have developed a rich set of reactions for the construction of chemical compounds. (uni-erlangen.de)
- These compounds very easily undergo redistribution reactions in solution and in the solid state. (researchgate.net)
Characterization4
- Characterization of organometallic compounds by mass spectrometry can sometimes be complicated by problems with solubility and reactivity. (jeolusa.com)
- The characterization of the new compounds was done by IR, 1 H- and 13 C-NMR spectroscopy, mass-spectrometry, elemental analysis and X-ray diffraction studies. (degruyter.com)
- We develop and optimize analytical methods for organic and organometallic compounds, using either liquid chromatography (UHPLC) or supercritical fluid chromatography (SFC) with MS and MS/MS characterization or quantification. (lu.se)
- This instrument is used for the characterization of synthesized or isolated organic and organometallic compounds. (lu.se)
Inorganic compounds2
- [6] Vitalism taught that formation of these "organic" compounds were fundamentally different from the "inorganic" compounds that could be obtained from the elements by chemical manipulations in laboratories. (wikipedia.org)
- It therefore started to occur in a second position in the hierarchical structure (under Organometallic Compounds) in the Inorganic Compounds subcategory and in a third position in the Organic Compounds subcategory (also under a second occurence of Organometallic Compounds). (bvsalud.org)
Grignard5
- Grignard reagents are the most famous organometallic compounds that have covalent bonds. (hatsudy.com)
- Grignard reagents are compounds that have magnesium in their molecules. (hatsudy.com)
- Like the Grignard reaction, lithium metal compounds can be obtained by chemical reaction with alkyl halides. (hatsudy.com)
- As is common to all organometallic compounds, including Grignard reagents, lithium compounds are strong bases. (hatsudy.com)
- Grignard reagents are significant organometallic compounds. (bartleby.com)
Coordination4
- Vlcek, A. The life and times of excited states of organometallic and coordination compounds. (nature.com)
- Magnetic exchange interactions in coordination compounds: ferrimagnetism and antiferromagnetism. (iitk.ac.in)
- The aim of the course is to enable students to acquire specialised theoretical and practical knowledge within coordination chemistry, organometallic chemistry and bioinorganic chemistry. (lu.se)
- Lectures and exercises (7.5 credits): The course deals with coordination chemistry and organometallic chemistry. (lu.se)
Heterocyclic2
- This is determined by a peculiar chemical behavior of such compounds due to mutual influence of the metallocene and heterocyclic moieties. (degruyter.com)
- Certain polycyclic aromatic hydrocarbons and heterocyclic compounds / this publication is the outcome of the meeting of the IARC Working Group on the Evaluation of the Carcinogenic Risk of Chemicals to Man, Lyon, 5-11 December 1972. (who.int)
Transition metal4
- These properties have allowed the development of a rich chemistry of group 3 and 4 d-block and f-block transition metal compounds with pentamethylcyclopentadienyl ancillary ligands. (caltech.edu)
- Transition metal compounds present a vast array of structures, along with a full diversity of properties and chemistry. (uab.cat)
- These features of transition metal compounds have long been an attractive subject for theoretical chemists. (uab.cat)
- Among transition metal compounds, this work deals with organotransition metal complexes of two-carbon (C2) p-ligands, i. e. , alkene and alkyne complexes. (uab.cat)
Lead compounds2
- At low ph values the particulate lead compounds adsorbed humic acid, inhibiting lead dissolution. (cdc.gov)
- Some of them are well known, or rather ill-known, because of the environmental hazards they have caused, such as organo-mercury and organo-lead compounds. (nobelprize.org)
Chemists4
- Fully updated and expanded to reflect recent advances, this short text provides students and professional chemists with a comprehensive introduction to the principles and general properties of organometallic compounds. (saujanyabooks.com)
- Other than those just named, little consensus exists among chemists on precisely which carbon-containing compounds are excluded, making any rigorous definition of an organic compound elusive. (wikipedia.org)
- The basic concept of organometallic chemistry was from 1949 and onwards widened through important contributions by the two British chemists Dewar and Chatt and a number of other scientists who investigated compounds where a metal atom was bonded to a bond between two carbon atoms rather than to the individual carbon atoms. (nobelprize.org)
- Fischer also made a sandwich compound with chromium and benzen molecules (see figure 3 ), a great surprise for most chemists at that time. (nobelprize.org)
Hydrocarbons2
- Most synthetically-produced organic compounds are ultimately derived from petrochemicals consisting mainly of hydrocarbons , which are themselves formed from the high pressure and temperature degradation of organic matter underground over geological timescales. (wikipedia.org)
- NIOSH's response focused primarily on industrial hygiene assessment of potential occupational exposures [benzene and other volatile organic compounds, oil mist, polynuclear aromatic hydrocarbons (PNA's), diesel fumes, and noise] during typical tasks performed by the majority of the 11,000 workers involved in the 1989 cleanup activities. (cdc.gov)
Spectroscopy1
- Examinations were made of the structure and mechanisms of complexing through the use of model humic acid functional group compounds and infrared spectroscopy. (cdc.gov)
Synthetic2
- Convenient synthetic entry points to these compounds are (η^5-C_5Me_5)_2NbCl_2 and (η^5-C_5Me_5)_2TaCl_2. (caltech.edu)
- Investigations of the chemical transformations of such compounds are certainly of interest for theoretical, practical and synthetic organic chemistry, as well as for the search of compounds with favorable practical properties, such as thermal stability, electrical conductivity (even superconductivity), biological activity, nonlinear optical effects, etc. [ 39 ]. (degruyter.com)
Derivatives1
- The chemistry of organometallic derivatives of titanium and zirconium bearing two pentamethylcyclopentadienyl groups as ancillary ligands has proven to be rich and varied, whereas that for hafnium is still in its formative stages. (caltech.edu)
Zirconium1
- Nichia supplies high-purity Titanium, Zirconium, Nickel compounds, etc. produced by Nichia's proprietary techniques. (nichia.co.jp)
Volatile compounds1
- Gas chromatography mass spectrometry is also available for the analysis of volatile compounds, as well as a state-of-the-art pipetting robot for automated sample preparation. (lu.se)
Chromium1
- British Library EThOS: Crystallographic studies of mono- to hexa-nuclear organometallic compounds of the chromium, iron and cobalt triads. (bl.uk)
Complexes2
- Molybdenocene and tungstenocene complexes have played a prominent role in the development of organometallic chemistry. (caltech.edu)
- These compounds are among the most important complexes used in modern organometallic chemistry ," says Professor Peter Roesky from KIT's Institute for Inorganic Chemistry. (chemeurope.com)
Chemical compound3
- The new chemical compound was called 'cyclocene' by the researchers. (chemeurope.com)
- In chemistry , many authors consider an organic compound to be any chemical compound that contains carbon-hydrogen or carbon-carbon bonds , however, some authors consider an organic compound to be any chemical compound that contains carbon. (wikipedia.org)
- This discovery had a great impact on the chemical thinking of the time, mainly because it was the first chemical compound between a metal atom Zn and an organic radical methyl CH 3 . (nobelprize.org)
Organic chemistry1
- In organic chemistry, an alkyl halide is formed when an atom of hydrogen is switched by a halogen in a hydrocarbon or aliphatic compound. (bartleby.com)
Salts3
- Water-soluble organic compounds are hydroxylated by aqueous solutions of chloroplatinum(II) and chloroplatinum(IV) salts. (caltech.edu)
- Nichia's calcium compound and iron salts are used as raw materials for high-purity pharmaceutical, chemicals, and food additives. (nichia.co.jp)
- For historical reasons, a few classes of carbon-containing compounds (e.g., carbonate salts and cyanide salts ), along with a few other exceptions (e.g., carbon dioxide , and even hydrogen cyanide despite the fact it contains a carbon-hydrogen bond), are generally considered inorganic . (wikipedia.org)
Substances1
- Different forms ( allotropes ) of pure carbon, such as diamond , graphite , fullerenes , and carbon nanotubes [4] are also excluded because they are simple substances composed of only a single element and therefore are not generally considered to be chemical compounds . (wikipedia.org)
Atoms6
- Because they are anionic carbon atoms, organometallic compounds are strong bases. (hatsudy.com)
- This is why carbon atoms have a negative charge in organometallic compounds. (hatsudy.com)
- Due to carbon's ability to catenate (form chains with other carbon atoms ), millions of organic compounds are known. (wikipedia.org)
- In the chemical language of our time it was the first compound which contained chemical bonds between a metal atom and carbon atoms (see figure 1 ). (nobelprize.org)
- Still more striking was, however, the suggestion independently by Fischer and Wilkinson that there existed compounds which contained bonds between metal atoms and a whole molecule, arranged in a way which has not been considered as possible or probable earlier. (nobelprize.org)
- The small molecules which replace the plate molecules on one side of the metal atom were first carbonmonoxide, CO, and later methyl groups like in the first prepared organometallic compound with direct bonds between the metal and carbon atoms. (nobelprize.org)
Aromatic3
- An aryl halide is formed when an atom of hydrogen is substituted by a halogen atom in an aromatic compound. (bartleby.com)
- As can be seen in Table 4 , a nitro bond to an aromatic ring system is rated in one compound with 100, in another compound with 2, and in a third compound it is not strategic at all. (uni-erlangen.de)
- In aromatic compounds with more than one substituent only bonds on activated positions can be strategic. (uni-erlangen.de)
Magnesium1
- Mg (magnesium) and Li (lithium) are often used as organometallic compounds. (hatsudy.com)
Molecular2
- These compounds can be reduced under dihydrogen to yield (η^5-C_5Me_5)_2MH_3 (M═Nb, Ta), which catalyzes the exchange of molecular hydrogen with benzene-d^6. (caltech.edu)
- Routine work includes determination of molecular formula and accurate mass with an accuracy of ± 1 mDa of compounds with m/z up to 3000 mDa. (lu.se)
Properties3
- Spectroscopic properties of inorganic and organometallic compounds techniques, materials and applications. (hacettepe.edu.tr)
- Some properties of these compounds are described. (researchgate.net)
- According to a recent report in Nature, freshly pressed extra-virgin olive oil contains a compound, oleocanthal, that has properties similar to the common anti-inflammatory drug, ibuprofen. (jeolusa.com)
Benzene1
- The compounds 1,3-bis(diethylgallyl)benzene (3) and 1,4- bis(diethylgallyl)benzene (6) were prepared by reaction of the corresponding chloromercuriobenzenes with an excess of triethylgallium by applying pressure and higher temperatures. (researchgate.net)
Biological1
- Organometallic biological compounds. (cdc.gov)
Metal atom1
- In organometallic compounds, a bond between a metal atom and a carbon atom can be created. (hatsudy.com)
Important5
- When making organometallic compounds, there are some important points to keep in mind. (hatsudy.com)
- A més a més, juguen un paper important com a econòmiques matèries primeres en processos industrials, així com a materials de partida per la síntesi orgànica. (uab.cat)
- En el segon, s'estudia un aspecte important de la reactivitat dels alquins, la isomerització alquí-vinilidè, la qual ha estat investigada en l'esfera de coordinació del niobi. (uab.cat)
- It is important to realize that these values are not absolute but relative to the compound actually loaded. (uni-erlangen.de)
- Organometallic compounds play an important role in chemistry, as recently recognized by the awarding of the 2005 Nobel Prize in Chemistry to Chauvin, Schrock and Grubbs. (jeolusa.com)
Molecules3
- Living things incorporate inorganic carbon compounds into organic compounds through a network of processes ( the carbon cycle ) that begins with the conversion of carbon dioxide and a hydrogen source like water into simple sugars and other organic molecules by autotrophic organisms using light ( photosynthesis ) or other sources of energy. (wikipedia.org)
- The representation of the structure is made in the simplified way to indicate why these compounds have been called sandwich compounds: an iron atom with two plate molecules called cyklopentadienyl groups on each side. (nobelprize.org)
- The interest in oxazoline compounds bearing ferrocenyl substituents in the molecules can be traced back to the discovery of ferrocene [ 37 ]. (degruyter.com)
Publication1
- Inorganic and organometallic compounds / this publication is the outcome of the meeting of two IARC Working Groups on the Evaluation of the Carcinogenic Risk of Chemicals to Man, Lyon, 7 October and 29 November - 4 December 1972. (who.int)
Carbon2
- Several organic bromides, iodides, and chlorides would react with specific metallic compounds to yield a compound, which could contain a carbon-metal bond. (bartleby.com)
- The definition of " organic " versus " inorganic ", and whether some other carbon-containing compounds are organic or inorganic vary from author to author, and are topics of debate. (wikipedia.org)
Mesh1
- Example for a MeSH descriptor: in 2011 the scope for Iron Compounds, which in MeSH 2010 was considered only inorganic, was expanded to also be included among the organic compounds. (bvsalud.org)
Oxide1
- The lachrymator released by chopped onions and related plants is formed by the action of a pair of enzymes on a cysteine derivative to ultimately form propanethial S-oxide (C3H6SO), the compound that causes eye irritation. (jeolusa.com)
Electron1
- Electron ionization can be used for some voltatile organometallics. (jeolusa.com)
Occur1
- It first came under question in 1824, when Friedrich Wöhler synthesized oxalic acid , a compound known to occur only in living organisms, from cyanogen . (wikipedia.org)
Thermal1
- In the presence of ionic compounds, the thermal decomposi-tion of octacarbonyldicobalt, Co 2 (CO) 8 , in an inert solvent leads exclusively to ε-Co nanocubes. (researchgate.net)
Title1
- The title compound, C12H11N5.2H2O, which crystallizes as a dihydrate, was obtained by Cu(I)-catalysed azide-alkyne cyclo-addition from 2-azido-1-methyl-imidazole and phenyl-ethyne. (who.int)
Materials1
- Although these materials are not pure compounds, a library of DART mass spectra can be created and searched to identify materials, and exact mass measurements coupled with accurate isotopic abundances can be used to identify unknown components. (jeolusa.com)