全部文献期刊学位论文会议报纸专利标准年鉴图书|学者科研项目
中外文文献  中文文献  外文文献
作者:Shinya Mayama , Ken Egashira , Kinichi Obi
来源:[J].Research on Chemical Intermediates, 1989, Vol.12 (3), pp.285 -302Brill Press
摘要:The SRVL fluorescence lifetimes and fluorescence excitation spectra of the HNO A1A"-X1A'' transition were measured in a supersonic free jet. The cooling of a rotational temperature in the jet made it possible to clear up the parity-selected perturbations in the asymmetric rotor u...
作者:T. Dominh
来源:[J].Research on Chemical Intermediates, 1989, Vol.12 (2), pp.125 -129Brill Press
摘要:Cis-trans photoisomerization was observed in solution-phase photolysis of some photochromic aziridines, indicating a common planar intermediate. However, in the solid state, each isomer produced a different color, and no photoisomerization occurred, indicating separate and nonint...
作者:T.N. Bell , F. Faraji
来源:[J].Research on Chemical Intermediates, 1989, Vol.12 (3), pp.269 -274Brill Press
摘要:Reaction of nitrous oxide with methylene, chlorine and bromine atoms was attempted at temperatures of up to 300° C, no evidence for the formation of nitrogen was however observed. Some qualitative observations are reported.
作者:V. Sandhu , O.P. Strausz , T.N. Bell
来源:[J].Research on Chemical Intermediates, 1989, Vol.11 (3), pp.235 -244Brill Press
摘要:The absolute rate constants for the gas-phase reactions of 1,1-dichlorosilylene with carbon monoxide and nitrous oxide have been determined using the flash photolysis-kinetic absorption spectroscopy technique. The bimolecular rate constant values at 25° C are: k(Cl2Si+CO) (6...
作者:M. Anpo , M. Sunamoto , T. Fuj ...
来源:[J].Research on Chemical Intermediates, 1989, Vol.11 (3), pp.245 -255Brill Press
摘要:Dynamic photoluminescence studies of V-oxide anchored onto Si02 are investigated in the absence and presence of 02 or H20. It is found that the added 02 molecules interact with the charge transfer excited triplet state of tetrahedrally coordinated V-oxide species. This resul...
作者:X.-M. Zhang , D.-L. Yang , Y.-C. Liu ...
来源:[J].Research on Chemical Intermediates, 1989, Vol.11 (3), pp.281 -300Brill Press
摘要:The nucleophilic substitution reactions of o-nitrochlorobenzene (1a), o -nitrobromobenzene (1b, p-nitrofluorobenzene (1c), p-nitrochlorobenzene (1d), p-nitrobromobenzene (le), and p-nitroiodobenzene (If) with the sodium salt of ethyl cyanoacetate carbanion (2) in DMSO all gave th...

我们正在为您处理中,这可能需要一些时间,请稍等。

资源合作:cnki.scholar@cnki.net, +86-10-82896619   意见反馈:scholar@cnki.net

×