Sulfur K-beta x-ray emission from carbonyl sulfide: Variations with polarization and excitation energy at the S K threshold. (cuny.edu)
The work describes well-controlled activity of an disolveable poly(monothiocarbonate) with higher d and also V-d valuations by using carbonyl sulfide (COS) being a source of sulfur. (hif-signaling.com)
Nickel7
In common with many of the other homoleptic metal carbonyls (e.g. nickel carbonyl and iron carbonyl), chromium hexacarbonyl is toxic and thought to be carcinogenic. (wikipedia.org)
Tests on e-cigarettes confiscated from youngsters found they contained dangerous levels of lead, nickel and chromium. (uwinhealth.com)
The gadgets, which can cost as little as £5 and sold in shops across the country, were also over 9.6 times the safe level of nickel and 6.6 times the safe level of chromium. (uwinhealth.com)
In recent years, schools and public spaces have been confiscating illegal vapes tainted with dangerous amounts of lead, nickel, and chromium, which have become an escalating global health concern. (medicalchannelasia.com)
The BBC News report found that vapes confiscated from school pupils contained high levels of lead, nickel, and chromium. (medicalchannelasia.com)
Used vapes confiscated from school pupils contain high levels of lead, nickel, and chromium, BBC News has found. (vapemonitor.com)
The metals, including lead, nickel, and chromium, were in the e-liquid itself rather than just coming from the heating element, as initially believed. (vapemonitor.com)
Hexavalent2
Three of the comprehensive sites also analyzed for 80 speciated nonmethane organic compounds (SNMOC), 106 semivolatile compounds (SVOC), and hexavalent chromium. (epa.gov)
ATEC produces several automated samplers that combine canister, cartridge, and/or hexavalent chromium (Cr6) filter sampling all in one instrument. (atec-online.com)
The major manufacturers of chromium compounds in 2007 are summarized in Table 5-3 (SRI 2007). (cdc.gov)
Five sites were designated as comprehensive sites and analyzed ambient air samples for concentrations of 60 volatile organic compounds (VOC) and 15 carbonyl compounds. (epa.gov)
Scientists also found compounds called carbonyls at 10 times the level in legal vapes. (uwinhealth.com)
In addition to the harmful metals, the lab tests also detected compounds called carbonyls at 10 times the level in legal vapes. (medicalchannelasia.com)
Synthesis1
Leaving such a reaction to the last step of the synthesis is a little risky, but using chromium trioxide and 3,5-dimethylpyrazole 3 - a combination of reagents that are new to me - the target was completed in a more than acceptable yield. (chemistryworld.com)
Protein carbonyls3
The inference that protein oxidation is a primary mechanism of Cr toxicity was corroborated by an observed ∼20-fold increase in the cellular levels of protein carbonyls within 30 min of Cr exposure. (microbiologyresearch.org)
Description: For quantitative determination of carbonyl groups or protein carbonyls and evaluation of drug modulators. (gentaur-online.com)
Samples: Chemicals with carbonyl groups (e.g. ketones, aldehydes) or protein carbonyls in biological samples (e.g. oxidized BSA, etc). (gentaur-online.com)
Oxidation2
In chromium hexacarbonyl, the oxidation state for chromium is assigned as zero, because Cr-C bonding electrons come from the C atom and are still assigned to C in the hypothetical ionic bond which determines the oxidation states. (wikipedia.org)
Oxidative damage in microbial cells occurs during exposure to the toxic metal chromium, but it is not certain whether such oxidation accounts for the toxicity of Cr. (microbiologyresearch.org)
Carcinogenic1
He also added that with sustained use, carbonyls are mildly carcinogenic and thus increase the risk of cancer. (vapemonitor.com)
Vapes3
Some of these vapes had even higher carbonyl levels than cigarettes. (medicalchannelasia.com)
Carbonyls were found at 10 times the level in legal vapes. (vapemonitor.com)
Carbonyls were detected in the vapes at levels 10 times higher than those found in legal vapes, and some with more than cigarettes. (vapemonitor.com)
Hydrogen1
Reaction of chromium(VI) with glutathione or with hydrogen peroxide: identification of reactive intermediates and their role in chromium(VI)-induced DNA damage. (microbiologyresearch.org)
Chromium hexacarbonyl (IUPAC name: hexacarbonylchromium) is a chromium(0) organometallic compound with the formula Cr(CO)6. (wikipedia.org)
On one hand, there has been continuous efforts to calculate the electronic structures (including HOMO and LUMO) as well as its molecular geometry on the chromium hexacarbonyl compound with various approaches. (wikipedia.org)
UV-irradiation of frozen solutions of chromium hexacarbonyl affords a variety of labile adducts, including labile but complexes with some noble gases. (wikipedia.org)
These anionic species in turn react with alkylating agents such as Me3O+ to form (OC)5Cr=C(OMe)R to give Fischer carbene complexes: Treatment of chromium hexacarbonyl with sodium cyclopentadienide gives NaCr(CO)3(C5H5). (wikipedia.org)
A unique double ligand-transfer reaction was reported with using chromium trichloride and chromium hexacarbonyl. (wikipedia.org)
Characterization1
Sol-Gel Syntheses and Spectroscopic Characterization of Chromium-Doped Silicates and Germanates. (cuny.edu)
Chromite ore1
Chromium metal is commercially produced in the United States by the reduction of chromite ore with carbon, aluminum, or silicon, and subsequent purification. (cdc.gov)
Iron8
Carbonyl iron powder has unique physical properties and is a high-grade basic production factor in the industrial field. (hruimetal.com)
Carbonyl iron powder has the physical characteristics of high purity, fine p. (hruimetal.com)
Carbonyl iron is an iron replacement product. (mtatva.com)
You should not use carbonyl iron if you are allergic to it. (mtatva.com)
Carbonyl iron tablets may contain milk. (mtatva.com)
Carbonyl iron may be taken with food if it upsets your stomach. (mtatva.com)
Do not take carbonyl iron for longer than 6 months without your doctor's advice. (mtatva.com)
Avoid taking carbonyl iron within 2 hours before or 2 hours after you take other medicines. (mtatva.com)
Commercially1
Using specially produced chromium metal]] will react with CO gas to give Cr(CO)6 directly, although the method is not used commercially. (wikipedia.org)
Neutral1
The bonding between d6 chromium metal and neutral carbonyl ligands is described by the Dewar-Chatt-Duncanson model.It involves donation of electrons in HOMO of CO to empty d orbitals of the Cr metals while back-bonding from other d orbitals to the pi* orbital of the ligands reinforces the interactions synergistically. (wikipedia.org)
Amounts1
Tables 5-1 and 5-2 list the facilities in each state that manufacture or process chromium, the intended use, and the range of maximum amounts of chromium that are stored on site. (cdc.gov)
Atom2
The complex was found to have the 2,6-diaminopyridine ligand bonded to the chromium atom through one of the NH2 groups. (metu.edu.tr)
A single crystal X-ray structure of the complex reveals that the coordination sphere around the chromium atom is a slightly distorted octahedron, involving five carbonyls and one 2,6-diaminopyridine ligand. (metu.edu.tr)
Metal1
Like many metal carbonyls, Cr(CO)6 is generally prepared by "reductive carbonylation", which involves reduction of a metal halide with under an atmosphere of carbon monoxide. (wikipedia.org)
Ammonium1
The actual changing COS/cyclohexene oxide (CHO)/propylene oxide (PO) terpolymerization was RXDX-101 datasheet carried out by employing a tetradentate Schiff starting chromium chloride intricate (SalenCrCl) and also bis(triphenylphosphoranylidene) ammonium chloride (PPNCl) as a switch in 45 diplomas D www.selleckchem.com/products/bindarit.html , producing terpolymers along with 100% poly(monothiocarbonate) selectivity depending on the H-1 NMR spectra. (hif-signaling.com)
Reactions1
In reactions, potassium perrhenate(VII) is reduced and carbonylated by the chromium reagents and undergoes Cp ligand-transfer to afford CpRh(CO)3 complex derivatives. (wikipedia.org)
Complex1
The formula conforms to the 18-electron rule and the complex adopts octahedral geometry with six carbonyl ligands. (wikipedia.org)
Groups1
Because of the steric requirement of 2,6-diaminopyridine the four equatorial carbonyl groups are bended away from the N-donor ligand. (metu.edu.tr)
Close1
One more step was required to build the remaining g -lactone group, using a neat piece of palladium chemistry to insert a carbonyl group and close the ring. (chemistryworld.com)
Solution1
Photolysis of hexacarbonylchromium(0) in the presence of 2,6-diaminopyridine in toluene solution at 10 degreesC yields pentacarbonyl(2,6-diaminopyridine)chromium(0), which could be isolated from solution as plate-like crystals and fully characterized by using the single crystal X-ray diffractometry and MS, IR, H-1 and C-13 NMR spectroscopy. (metu.edu.tr)
Range1
Linear detection range from 12 to 250 µM carbonyl in 96-well plate assay. (gentaur-online.com)