dichloro-deuterio-fluoro-methane;deuterodichlorofluoromethane;Dichlorofluorodeuteromethan;Dichlorfluordeuteromethan;Dichlorfluormethan-d;Dichlorofluoromethane-d, 98 atom % D;dichloro-deuterio-fluoromethane
Complete13C NMR spectra of the axial forms of methyl-, ethyl- and isopropylcyclohexane
作者:Michael E. Squillacote、Joann M. Neth
DOI:10.1002/mrc.1260250113
日期:1987.1
Low‐temperature 13C NMR spectral data have been obtained for equatorial and axial methyl‐, ethyl‐ and isopropylcyclohexane using a high‐temperature cryogenic trapping technique. 13C chemical shift differences between major and minor conformations of each compound are discussed in terms of chemical shift theories. A convenient synthesis of deuteriated dichlorofluoro‐ and difluorochloromethane, which
Infrared and DFT Investigations of the XC⋮ReX<sub>3</sub> and HC⋮ReX<sub>3</sub> Complexes: Jahn−Teller Distortion and the Methylidyne C−X(H) Stretching Absorptions
作者:Jonathan T. Lyon、Han-Gook Cho、Lester Andrews、Han-Shi Hu、Jun Li
DOI:10.1021/ic701014u
日期:2007.10.1
The XC ReX3 complexes (X = F, Cl) are produced by CX4 reaction with laser-ablated Re atoms, following oxidative C-X insertion and alpha-halogen migration in favor of the carbon-metal triple bond and are identified through the observation of characteristic absorptions in the argon matrix infrared spectra and comparison with vibrational frequencies calculated by density functional theory. The methylidyne C-F and C-Cl stretching absorptions are observed near 1584 and 1328 cm(-1), and the C-H stretching modes for HC ReX3 at 3104 and 3097 cm(-1), respectively, which are substantially higher than the precursor stretching modes and in agreement with the general trend that higher s-orbital character in carbon hybridization leads to a higher stretching frequency. The Jahn-Teller effect in the doublet-state XC ReX3 and HC ReX3 complexes gives rise to distorted structures with C-S symmetry and two equivalent longer Re-X bonds and one slightly shorter Re-X bond.
SIEGEL, JAY S.;ANET, FRANK A. L., J. ORG. CHEM., 53,(1988) N 11, 2629-2630
作者:SIEGEL, JAY S.、ANET, FRANK A. L.
DOI:——
日期:——
Carbon dioxide laser photolysis of mixtures of dichlorofluoromethane-h and -d
作者:K. Sugita、Y. Ishikawa、S. Arai
DOI:10.1021/j100241a023
日期:1983.9
Dichlorofluoromethane-d: a versatile solvent for VT-NMR experiments