Green, Malcolm L. H.; Parkin, Gerard; Bashkin, Jim, Journal of the Chemical Society, Dalton Transactions, 1982, p. 2519 - 2526
作者:Green, Malcolm L. H.、Parkin, Gerard、Bashkin, Jim、Fail, John、Prout, Keith
DOI:——
日期:——
Phosphonium salts of chloromolybdate anions
作者:A. Herbowski、J.M. Sobczak、J.J. Ziółkowski
DOI:10.1016/s0277-5387(00)84940-2
日期:1986.1
Solid-state studies of α- and β-[Mo2Cl4(dppe)2]—kinetics of the α → β isomerization reaction and solid-state 31P and 13C NMR spectra
作者:Andrew McVitie、Robert D. Peacock
DOI:10.1016/s0277-5387(00)83574-3
日期:1992.1
We have investigated the reaction in which the chelated (alpha) form of [Mo2Cl4 (dppe)2] isomerizes to the bridged (beta) form in the solid state. The kinetic parameters for the solid-state reaction (E(a) = 335+/-30 kJ mol-1, DELTAS(double dagger) = 340+/-30 J K-1) are substantially different from those measured for the isomerization in solution (E(a) = 121+/-5 kJ mol-1. DELTAS(double dagger) = 16.2+/-0.8 J K-1). The P-31 and C-13 solid-state NMR spectra of the two isomers are presented and discussed. Of particular note is the P-31 NMR spectrum of the beta-isomer which is broad at room temperature and sharpens markedly on cooling. This temperature dependence is interpreted as being due to paramagnetism caused by the presence of the low-lying 3deltadelta* state, which has significant population at room temperature.
Agaskar, Pradyot A.; Cotton, F. Albert, Inorganic Chemistry, 1984, vol. 23, # 21, p. 3383 - 3387