Reactions of silanes and germanes with iridium complexes. Part 4. Reactions with carbonylhydridotris(triphenylphosphine)iridium(I)
作者:E. A. V. Ebsworth、Thomas E. Fraser、Steven G. Henderson、Diana M. Leitch、David W. H. Rankin
DOI:10.1039/dt9810001010
日期:——
The title complex, [IrH(CO)(PPh3)3](1), reacts with MH3Q (M = Si or Ge when Q = H, F, Cl, Br, or I; M = Si when Q = SiH3 or CH3) to give [IrH2(CO)(PPh3)2(MH2Q)]. The products have been characterised by 1H, 31P, and (where appropriate)19F n.m.r. spectra. Where M = Ge, the predominant isomer contains mutually trans phosphine ligands, whereas when M = Si the predominant (and in some cases the sole) product
Vibrational spectra and normal coordinate analysis of germylazide-do and -d3
作者:J.R. Durig、J.F. Sullivan、P.L. Trowell
DOI:10.1016/0022-2860(81)85006-5
日期:1981.3
determined. A normalcoordinate calculation has been carried out by utilizing a modified valence force field. The GeN stretching force constant was found to have a significantly smaller value than the corresponding force constant in GeH 3 NCO and GeH 3 NCS. A considerable amount of mixing was found between the GeN stretch and the NNN in-plane bend. The frequencies of the normal modes and the normal coordinate
摘要 记录了气态和固态GeH 3 NNN 和GeD 3 NNN 的红外光谱(4000-20 cm -1 )以及液态和固态GeH 3 NNN 和GeD 3 NNN 的拉曼光谱(3000-0 cm -1 )。振动谱已根据 C s 对称性指定。在~150 cm -1 处的气体拉曼光谱中观察到GeNN 弯曲;然而,GeH 3 扭转的频率无法确定。法向坐标计算已通过利用修正的价力场进行。发现 GeN 拉伸力常数的值明显小于 GeH 3 NCO 和 GeH 3 NCS 中相应的力常数。在 GeN 拉伸和 NNN 面内弯曲之间发现了大量混合。
Preparations, properties, and vibrational spectra of some (dimethylamino)halogenosilanes
作者:David G. Anderson、Janet Armstrong、Stephen Cradock
DOI:10.1039/dt9870003029
日期:——
The vibrational spectra of the three (amino)monohalogenosilanes show dramitic changes on solidification, but those of the (amino)dichlorosilane are very similar in all three phases. These differences are discussed in the light of the formation of dimers in the crystalline solid of SiH2Cl(NMe2), and the presence of discrete monomers in the crystal of SiHCl2(NMe2). The n.m.r. spectra of the compounds
eliminating Et3PH+ BPh4+ and forming trans-PtH(PEt3)2(MH2Q), the only product identified when Q = Br and M = Ge or Si. Wiht SiH4 or SiH3Cl, the ony products detected were [Pt(PEt3)3SiH2Q]+. There was no reaction between (I) and GeH4 or SiH3F. None of the products could be isolated; all were characterised by 31P, 1H and (where appropriate) 19F NMR spectroscopy.