A secondary carbon-11/carbon-14 kinetic isotope effect in the base-catalyzed prototropic rearrangement of 1- to 3-methylindene The secondary 11 C/ 14 C kinetic isotope effect (KIE) has been determined to 1.010±0.005 for the base-catalyzed rearrangement of 1-methylindene to 3-methy... B....
CONSTITUTION: A carbon nanotube structure comprises a substrate, and a plurality of carbon nanotubes grown on the substrate. The carbon nanotubes include a plurality of primary carbon nanotubes(1) grown in the vertical direction with respect to the substrate; and a plurality of secondary carbon ...
(of an organic compound) having its functional group located on a carbon atom which is bonded to no more than one other carbon atom A primary alcohol Prime The period of greatest physical and mental robustness Athletes in the prime of their lives. Primary (in the US) a preliminary election...
2.2.1PRIMARY VS. SECONDARY BATTERIES Batteriesare either primary or secondary. Primarybatteriescan be used only once because the chemical reactions that supply the current are irreversible. Secondary batteries, sometimes called storage batteries or accumulators, can be used, recharged, and reused. In ...
Oxidation of oils/biodiesels occurs in two ways: primary and secondary oxidation. Primary oxidation occurs in three steps: initiation, propagation and termination. The initiation involves the removal of hydrogen from a carbon atom to produce a carbon free radical, which reacts with diatomic oxygen ...
Just to chime in, the atom designation increases with the amount of carbon atom bonding. A primary carbon has one carbon atom bonded to it. A secondary carbon atom has two carbon atoms bonded to it. A tertiary carbon atom has three carbon atoms bonded to it. A quaternary ca...
Relating to, or having a carbon atom that is attached to only one other carbon atom in a molecule. Primary Relating to the replacement of only one of several atoms or groups in a compound, such as an amine in which one valence of the functional group is taken by a carbon atom. Primary...
摘要: This invention relates to dithiocarbamic acids and their salts and has as its object the preparation of N-diaryl substituted dithiocarbamic compounds. Dithiocarbamates have heretofore been made by reacting aliphatic primary or secondary amines with carbon disulphide, which readily forms the......
Here, by studying the stable carbon isotope composition of formic and acetic acid in couple in the troposphere and relevant sources, we find the gap relates to primary biogenic emission and atmospheric lifetime of the acids. We show the primary biogenic emission is only second to the secondary ...
The same behavior has been observed with primary nitroalkanes having a vinyl or carbonyl group on the β-carbon. If there is only one α-nitro CH as in open-chain and cyclic secondary nitroalkanes, bis(lithioxy)enamines (58) and (59) (dianion derivatives of α-nitroalkenes, also called ...