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*  Aromaticity
In a cyclic molecule with three alternating double bonds, cyclohexatriene, the bond length of the single bond would be 1.54 Å ... Key aromatic hydrocarbons of commercial interest are benzene, toluene, ortho-xylene and para-xylene. About 35 million tonnes ... Polycyclic aromatic hydrocarbons are molecules containing two or more simple aromatic rings fused together by sharing two ... In organic chemistry, the term aromaticity is used to describe a cyclic (ring-shaped), planar (flat) molecule with a ring of ...
*  Cycloalkyne
Unsaturated Nine-membered Cyclic Hydrocarbons". J. Am. Chem. Soc. 74 (14): 3643-3647. doi:10.1021/ja01134a052. Meier, H.; Voigt ... In organic chemistry, a cycloalkyne is the cyclic analog of an alkyne. A cycloalkyne consists of a closed ring of carbon atoms ... Due to the activated nature of the cyclic carbon-carbon triple bond, many alkyne addition-type reactions such as the Diels- ... Analysis by photoelectron spectroscopy has indicated that the alkyne bond in small cyclic systems is composed of two non- ...
*  Catechol 1,2-dioxygenase
Sikkema, J; de Bont, J; Poolman, B (1996). "Interactions of cyclic hydrocarbons with biological membranes" (PDF). J. Biol. Chem ... 1,2-CTD degrades phenolic hydrocarbons key to the synthesis lipid membranes. Therefore, 1,2-CTD may bind to the cell lipid ... Studies have shown that phenolic hydrocarbons affect the functional and structural properties of cell membranes. ... membrane via its terminal phospholipids and thus have greater access to the phenolic hydrocarbons vital in lipid membrane ...
*  Fichtelite
It is a cyclic hydrocarbon: dimethyl-isopropyl-perhydrophenanthrene, C19H34. It is very soft with a Mohs hardness of 1, the ...
*  Nikolay Zelinsky
His main research area was the chemistry of cyclic hydrocarbons. He was president of the Moscow Society of Naturalists. The ...
*  Pregnenolone
Like other steroids, it consists of four interconnected cyclic hydrocarbons. The compound contains ketone and hydroxyl ... in the B cyclic hydrocarbon ring. Like many steroid hormones, it is hydrophobic. The sulfated derivative, pregnenolone sulfate ...
*  Norbornene
... or norbornylene or norcamphene is a bridged cyclic hydrocarbon. It is a white solid with a pungent sour odor. The ...
*  Rudolf Criegee
A focus was the investigation on the Autoxidation of unsaturated cyclic Hydrocarbons to Peroxides. One of his great ... In this context, his research on cyclic reactions and cyclic rearrangement-mechanisms led him, independently of the Nobel Prize ...
*  Chemical vapor deposition of ruthenium
Manner, W. L; Girolami, G. S; Nuzzo, R. G (1998). "Sequential Dehydrogenation of Unsaturated Cyclic C5 and C6 Hydrocarbons on ... Platinum, a chemically similar catalyst, catalyzes dehydrogenation of five- and six-member cyclic hydrocarbons into benzene. ... Therefore, it is likely that ruthenium also catalyzes dehydrogenation of five- and six-member hydrocarbon rings to benzene. ... Benzene dehydrogenates further on ruthenium surfaces into hydrocarbon fragments similar to those formed by acetylene and ethene ...
*  Hydrogen isotope biogeochemistry
Cyclic ketones and hydrocarbons". GCA. 107: 82-95. Bibcode:2013GeCoA.107...82W. doi:10.1016/j.gca.2013.01.001. Sessions, Alex ( ... For example, to resolve the single D substituted isotopologue peak of any hydrocarbons you will at have to be able to at least ... Recently, the D/H ratio of hydrocarbons from the Deepwater Horizon oil spill was used to verify that their origin was likely ... Thus hydrocarbons formed in clastic environments exchange more than those in carbonate settings. Aromatic and tertiary hydrogen ...
*  Oil refinery
The reformate has higher content of aromatics and cyclic hydrocarbons which is a component of the end-product gasoline or ... For example, light hydrocarbons are steam-cracked in an ethylene plant, and the produced ethylene is polymerized to produce ... Oil can be used in a variety of ways because it contains hydrocarbons of varying molecular masses, forms and lengths such as ... While the molecules in crude oil include different atoms such as sulfur and nitrogen, the hydrocarbons are the most common form ...
*  Quadricyclane
... is a strained, multi-cyclic hydrocarbon with potential uses as an additive for rocket propellants as well in ...
*  Hydrocarbon mixtures
Benzine is a mixture of alkanes, such as pentane, hexane, and heptane; whereas benzene is a cyclic, aromatic hydrocarbon.) A ... Hydrocarbon mixtures are composed of petroleum ethers and other hydrocarbons. Petroleum ether should not be confused with the ... Often the term is used as a shortened form of the term aliphatic hydrocarbon. Most hydrocarbons are combustible. Petroleum ... Hydrocarbon mixtures are a group of various volatile, highly flammable, mixtures used chiefly as nonpolar solvents. ...
*  Bioremediation
PCE, TCE, DCE, VC), chlorinated ethanes (TCA, DCA), chloromethanes (CT, CF), chlorinated cyclic hydrocarbons, various ... Numerous laboratory and field studies have shown that microorganisms can degrade a wide variety of hydrocarbons, including ... fuel hydrocarbons and a variety of reduced organic pollutants. The redox potential for common biotransformation reactions is ... hydrocarbons) or an electron donor (commonly an organic substrate) is added to reduce oxidized pollutants (nitrate, perchlorate ...
*  Porphyria cutanea tarda
Additionally, exposure to chlorinated cyclic hydrocarbons can lead to a deficiency in the activity of uroporphyrinogen ... and exposure to chlorinated cyclic hydrocarbons and Agent Orange. It can be a paraneoplastic phenomenon. Alcohol Estrogen Iron ... as well as estrogen and chlorinated cyclic hydrocarbons, all of which can potentially exacerbate the disorder. Additionally, ... This is accomplished by the clockwise removal of the four carboxyl groups present in the cyclic uroporphyrinogen III molecule. ...
*  Devadas Devaprabhakara
Cyclic hydrocarbons India portal Chemistry portal "A Regio-and Stereo-Specific Addition of Iodine Azide to C-9 and C-13 Cyclic ... His researches on the reduction, hydroporation and isomerization of them and his synthesis of a number of cyclic hydrocarbons ... He was known for his studies on cyclic allenes and medium-ring dines. ...
*  Dienochlor
... is a organochlorine compound included in the group of cyclic chlorinated hydrocarbons. Its chemical formula is C ...
*  Persistent generalized lymphadenopathy
In some cases the sensitization is caused by non-living exogenous irritants such as cyclic hydrocarbons (for example, resinous ...
*  Vertically aligned carbon nanotube arrays
On the other hand, cyclic hydrocarbons such as benzene, xylene, cyclohexane, fullerene, produce relatively curved/hunched CNTs ... Subsequent hydrocarbon decomposition takes place on the lower peripheral surface of the metal, and as-dissolved carbon diffuses ... Linear hydrocarbons such as methane, ethylene, acetylene, thermally decompose into atomic carbons or linear dimers/trimers of ... In the case of the base-growth model, the initial hydrocarbon decomposition and carbon diffusion take place similar to that in ...
*  Polycyclic aromatic hydrocarbon
Wakeham, S. G.; Schaffner, C.; Giger, W. (1980). "Poly cyclic aromatic hydrocarbons in Recent lake sediments-II. Compounds ... Polycyclic aromatic hydrocarbons (PAHs, also polyaromatic hydrocarbons or polynuclear aromatic hydrocarbons) are hydrocarbons- ... Dipple, A. (1985). "Polycyclic Aromatic Hydrocarbon Carcinogenesis". Polycyclic Hydrocarbons and Carcinogenesis. ACS Symposium ... Polycyclic Aromatic Hydrocarbon Fact Sheet Understanding Polycyclic Aromatic Hydrocarbons NASA Spitzer Space Telescope ...
*  Saturate, aromatic, resin and asphaltene
The saturate fraction consists of nonpolar material including linear, branched, and cyclic saturated hydrocarbons (paraffins). ...
*  Ernest Kennaway
... proving in 1921 that the carcinogen in coal was a cyclic hydrocarbon. In 1929 he discovered the first pure compound to show ... In 1930, Kennaway and Izrael Hieger showed for the first time that single polycyclic aromatic hydrocarbons (PAHs), such as ... evidence of cancer-causing activity, 1:2:5:6-dibenzanthracene, and also discovered a series of other carcinogenic hydrocarbons ...
*  Terra preta
... as well as of pollutants such as pesticides and aromatic poly-cyclic hydrocarbons. Charcoal's high absorption potential of ...
*  Expanding Monomers
However, when the cyclic hydrocarbons would be hypothetically polymerized (to polyethelene), still a volume shrinking would ... This can be illustrated by a comparison of cyclic and linear hydrocarbons (see table). A hypothetical ring-opening process of ... The polymerization of a cyclic compound causes therefore a smaller volume shrinkage because cyclic compounds are already ... "Cationic copolymerization of cyclic carbonate and epoxide via intermediate spiro orthocarbonate". Journal of Polymer Science ...
*  Plasma polymerization
... aliphatic hydrocarbons and cyclic hydrocarbons where decomposed more readily. The latter compounds have more ablation or side ... Nearly all monomers, even saturated hydrocarbons and organic compounds without a polymerizable structure such as a double bond ... November 2013). "Hydrophobic Plasma Polymer Coated Silica Particles for Petroleum Hydrocarbon Removal". ACS Appl. Mater. ...
*  Fowler process
Typically hydrocarbon compounds are used as the feedstocks. For cyclic perfluorocarbon, the aromatic hydrocarbon is the ... Simply exposing a hydrocarbon to fluorine will cause the hydrocarbon to ignite. A way to moderate the reaction was required, ... 2 CoF2 + F2 → 2 CoF3 During the second stage, in this instance to make perfluorohexane, the hydrocarbon feed is introduced and ... describe the laboratory preparation of numerous perfluorocarbons by the vapour phase reaction of a hydrocarbon with cobalt(III ...
*  UOP LLC
... linear paraffins from branched and cyclic hydrocarbons Olex: olefins from paraffins Cresex: para-cresol or meta-cresol from ... When founded in 1914 it was a privately held firm known as the National Hydrocarbon Company. J. Ogden Armour provided initial ... For example: One area of UOP's expertise is fluid catalytic cracking that breaks long-chain hydrocarbons from crude oil into ...