The rs structures of propyl fluoride and differences in structures between rotational isomers
作者:Michiro Hayashi、Masaharu Fujitake
DOI:10.1016/0022-2860(86)80278-2
日期:1986.8
Microwave spectra of trans and gauche propylfluoride and its isotopically substituted species have been measured. The rsstructures of the trans and gauche isomers of this molecule are determined from the observed moments of inertia. It is found that the CCC angle values are largely different between two isomers, while the CCF angle values stay unchanged. The rsstructures of ethyl fluorosilane and ethylmethlyl
Bioconversion of D-glucose in heavy water: Effect of water isotopomeric composition on deuterium fragment distribution in ethanol
作者:A. G. Sakhabutdinov、A. L. Bisikalo、D. F. Kushnarev、A. V. Rokhin、N. V. Kulagina
DOI:10.1134/s1070427210110339
日期:2010.11
The relative distribution of deuterium between methyl and methylene groups in ethanol at the bioconversion of D-glucose in heavy water was studied.
研究了重水中D-葡萄糖的生物转化过程中,乙醇中甲基和亚甲基之间氘的相对分布。
Stereochemistry of the coenzyme B12-mediated rearrangement of 2-aminoethan-1-ol by ethanolamine ammonia-lyase
作者:David Gani、O. Caryl Wallis、Douglas W. Young
DOI:10.1039/c39820000898
日期:——
Reaction kinetics and 2H n.m.r. spectra of reaction products show independently that the coenzymeB12-mediatedrearrangement of 2-aminoethan-1-ol by the enzyme ethanolamineammonia-lyase proceeds with migration of the (1S)-hydrogen.
反应动力学和反应产物的2 H nmr光谱独立地表明,辅酶B 12介导的乙醇胺氨裂解酶对2-氨基乙-1-醇的重排随着(1 S)-氢的迁移而进行。
Large primary kinetic isotope effects in the abstraction of hydrogen from organic compounds by a fluorinated radical in waterElectronic supplementary information (ESI) available: Tables of kinetic data and plots of kinetic data. See http://www.rsc.org/suppdata/ob/b4/b405075d/
作者:Joseph A. Cradlebaugh、Li Zhang、A. B. Shtarev、Bruce E. Smart、William R. Dolbier, Jr.
DOI:10.1039/b405075d
日期:——
Isotopeeffects have been measured for the abstraction of hydrogen from a series of organic substrates by the perfluoro radical, Na+ -O3SCF2CF2OCF2CF2*, in water. Both primary and secondary deuterium isotopeeffects were measured, with the primaryisotopeeffects ranging in value from 4.5 for isopropanol to 19.6 for acetic acid. The values for the alpha- and beta-secondary deuterium isotope effects
Transition State for β-Elimination of Hydrogen from Alkoxy Groups on Metal Surfaces
作者:Andrew J. Gellman、Mark T. Buelow、Shane C. Street、Thomas Hellman Morton
DOI:10.1021/jp993474x
日期:2000.3.1
investigations of β-hydrogen eliminationfrom alkoxy and alkyl groups bound to a Cu(111) surface have been coupled with computational studies of gas-phase analogues to provide insight into the transitionstate for catalytic hydrogenation and dehydrogenation on metal surfaces. Previous studies have shown that fluorination increases the activation barrier (ΔEact) to β-hydrogen elimination in ethoxy groups (RCH2O(ad)