Microwave spectrum of (trifluoromethyl)germane, CF<sub>3</sub>GeH<sub>3</sub>
作者:Lawrence C. Krisher、William A. Watson、John A. Morrison
DOI:10.1063/1.1682510
日期:1974.10.15
Microwave spectra of five isotopic species of CF3GeH3 have been investigated in the region 15 000 to 31 000 MHz. The height of the potential barrier hindering the internal rotation was determined to be 1280±150 cal/mole, using the frequency method for rotational satellite transitions. The sym-sym case of hindered internal rotor molecules is discussed, and expressions are given for calculating barrier heights using tabulated quantities.
EUJEN, R.;MELLIES, R.;PETRAUSKAS, E., J. ORGANOMET. CHEM., 1986, 299, N 1, 29-40
作者:EUJEN, R.、MELLIES, R.、PETRAUSKAS, E.
DOI:——
日期:——
(Trifluoromethyl)germanes. Preparation and properties of (CF3)2GeHX (X = H, D, F, Cl, Br, I, CH3) and CF3GeHnX3-n (X = H, D, CF2H, CH3)
作者:R. Eujen、R. Mellies、E. Petrauskas
DOI:10.1016/0022-328x(86)84031-1
日期:1986.1
observed, and (CF3)(CF2H)GeH2 has been characterized. Direct alkylation of GeH bonds was brought about by reaction with a mixture of RI and R′2Zn (R, R′= CH3, C2H5), and the methyl(trif]uoromethyl)germanes CF3GeH2(CH3), CF3GeH(CH3)2 and (CF3)2GeH(CH3) were isolated. For R = CD3, R′ = CH3 the product distribution can be accounted in terms of two competing mechanisms.
研究了在酸性介质中用NaBH 4氢化(CF 3)n GeX 4- n(X =卤素,n = 1-3)。用NaBD 4和D 3 PO 4氘化得到部分氘化的物种CF 3 GeH n D 3- n和(CF 3)2 GeH n D 2- n具有合理的同位素纯度。分离出(CF 3)2 GeHBr并将其转化为卤化物(CF 3)2用AgX或HX处理GeHX(X = F,Cl,I)。已经观察到CF 2插入GeH键中,并且已经表征了(CF 3)(CF 2 H)GeH 2。的GeH键直接烷基化反应所带来的反应以和RI的混合物,R' 2的Zn(R,R'= CH 3,C 2 H ^ 5)和甲基(三氟] uoromethyl)锗CF 3的GeH 2分离出(CH 3),CF 3 GeH(CH 3)2和(CF 3)2 GeH(CH 3)。对于R = CD 3,R'= CH 3,可以用两种竞争机制来解释产品分布。