Ethyl hydride

Wasserstofft m. hydrogen (in combination often best translated hydride, e.g, Athyl-waaaerstoff, ethyl hydride). 

Synonyms Bimethyl dimethyl methyl-methane ethyl hydride... 

A difference between methyl and ethylic hydride can only be conceived on the supposition that the four bonds of carbon have not equal values in combination, an hypothesis which is not altogether unsupported by cts. 

Beaetion .—l. When equid volumes of ethylic hydride and chlorine are exposed to diffused daylight, the following action... 

Zinn Dimethy]-(l,1,2,2-tetrafluor-ethyl)- -hydrid XIIt/6, 264... 

The potential energy profile is smooth without excessive barriers and too stable intermediates which would break the sequence of steps. The rate-determining step is found to be olefin insertion followed by isomerization, supporting the Halpern mechanism. Isomerization of the ethyl hydride complex is an important part of the rate-determining step. These two reactions, exothermic overall, has an overall barrier height of about 20 kcal/mol. The trans ethyl hydride complex, the product of ethylene insertion, may not be a local minimum (per MP2 calculation) and these two steps may well be a combined single step. 

Therefore, prior to reductive elimination, isomerization should take place from 5c to ethyl hydride complexes which have H or as an apical group, as shown below. 

SYNS BIMETHYL DIMETHYL ETHANE, compressed (UN 1035) (DOT) ETHANE, refrigerated liquid (UN 1961) (DOT) ETHYL HYDRIDE METHYLMETHANE... 

S-ETHYL-HOMOCYSTEINE see EEIOOO S-ETHYL-dl-HOMOCYSTEINE see EEIOOO ETHYL HYDKATE see EFUOOO ETHYL HYDRIDE see EDZOOO ETHYL HYDROGEN PEROXIDE see ELDOOO ETHYL HYDROPEROXIDE see ELDOOO ETHYL HYDROPERSULFIDE see EEBOOO ETHYL HYDROSULFIDE see EMBIOO ETHYL HYDROXIDE see EFUOOO ETHYL-p-HYDROXYBENZOATE see HJLOOO 2-ETHYL-3-(p-HYDROXYBENZOYL)BENZOFUKAN see BBJ500... 

The first proposal that the valences of carbon were arranged tetrahedrally was made by Aleksandr Mikhailovich Butlerov (1828-1886) in 1862. In an attempt to explain the isomerism (now known to be illusory) of C2H5.H and CH3.CH3, he proposed as a model a tetrahedral carbon atom, each face of which was capable of attaching a univalent atom or group. He proceeded to calculate the number of isomers to be expected in the case of methane and its substitution products if two, three, or four of the valences of carbon (even if all bonded to hydrogen) were different in character. By assuming differences in carbon affinities he was able to explain the isomerism between methyl and ethyl hydride mentioned above. 

The simplest and therefore most probable case of this association of two carbon atoms is that in which one unit of affinity of the one carbon atom is combined with one unit of affinity of the other. Of the 2x4 units of affinity of the two carbon atoms, two are used in holding the two atoms together there remain, therefore, six which may be held in combination by atoms of other elements. In other words the group of two carbon atoms, is hexatomic it will form a compound with 6 atoms of a monatomic element, or in general with that number of atoms that will make the sum of their chemical [affinity, TransL] units=6 (e.g. ethyl hydride, ethyl chloride, ethylene dichloride, l carbon tetrachloride [C2Cle, TransL] j acetonitrile, cyanogen, acetaldehyde, acetyl chloride, glycolide, etc.). 

Synonyms Bimethyl Dimethyl Ethyl hydride Methyl methane Ethane, copressed (UN1035, DOT) Ethane, refrigerated liquid (UN 1961, DOT)... 

ETHYL HYDRIDE (74-84-0) CjH Highly flammable gas [explosion limits in air (vol %) 2.9 to 13.0 flash point... 

ETHYL HYDRIDE (74-84-0) Flammable gas (flash point - 135°F/-93 C). Violent reaction with strong oxidizers, chlorine, chlorine dioxide, dioxygenyl tetrafluoroborate. Incompatible with nitronium tetrafluoroborate(l-). Flow or agitation of substance may generate electrostatic charges due to low conductivity. 

Blmethyi Dimethyl EINECS 200-814-8 Ethane Ethyl hydride HSDB 941 Methylmethane UN1035 UN1961. Used in the manufacturing of chemical Intermediates in ionization chambers used in subatomic species measurement and in the manufacturing of calibration mixtures. Colorless gas mp n -182,8° bp n -88,6° soluble in hydrocarbon solvents, BOC Gases, Mesa Specialty Gases Equipment. 

Ethylene readily enters into combination. It unites with H to form ethyl hydrid, CsHj. With 0 it unites explosively on the-approach of a fiame, with formation of carbon dioxid and H3O.-... 

The ethyl(hydride) is then converted to an olefin complex through pfrydrogen transfer ... 

Formnla CzHg MW 30.08 CAS [74-84-0] Stmctnre H3C—CH3, second member in the homologous series of alkanes Synonyms bimethyl, dimethyl, ethyl hydride methylmethane... 

Erlenmeyer returned to the same subject early in 1864. "We can imagine," he wrote, that the four equivalents of a single carbon atom (e.g., in methane, which he now depicted as four vertically arrayed CH groups gathered by a large bracket) have affinity units of intrinsically varying attractive power. Perhaps the reason "methyl" gas and "ethyl hydride" gas, both possessing the identical empirical formula are distinct (as chemists then believed that they were) may be because their two carbon atoms are connected by different sorts of affinity units in the two cases. (This idea had been broached by Butlerov as early as 1861.)... 

With larger alkanes the metal ion can interact with either a C—H bond or with C—C bond. Insertion into a C—H bond of ethane forms the ethyl hydride which, at high energies, loses an ethyl radical. At lower energies a jS-hydrogen shift occurs and the ethylene-coordinated dihydride is formed. This complex then eliminates H2 or C2H4(equations 19a and 19b). 

Synonyms Bimethyl Dimethyl Ethane, compressed Ethane, refrigerated liq. Ethyl hydride... 

Ethyl hydrate. See Alcohol Ethyl hydride. See Ethane Ethyl hydrocinnamate. See Ethyl-3-phenylpropionate... 

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