Halometallate Complexes of Germanium(II) and (IV): Probing the Role of Cation, Oxidation State and Halide on the Structural and Electrochemical Properties
作者:Philip N. Bartlett、Charles Y. Cummings、William Levason、David Pugh、Gillian Reid
DOI:10.1002/chem.201400179
日期:2014.4.22
irreversible reduction wave. The potential for the GeII–Ge0 reduction was unaffected by changing the cation, although altering the oxidation state of the precursor from GeIV to GeII does have an effect; for a given cation, reduction from the [GeCl3]− salts occurred at a less cathodic potential. The nature of the halide co‐ligand also has a marked influence on the reduction potential for the GeII–Ge0 couple, such
Ge IV氯金属络合物,[EMIM] 2 [GeCl 6 ]、[EDMIM] 2 [GeCl 6 ] 和 [PYRR] 2 [GeCl 6 ](EMIM=1-乙基-3-甲基咪唑鎓;EDMIM=2,3-二甲基-1-乙基咪唑鎓;PYRR= N-丁基-N-甲基吡咯烷鎓)已被合成并充分表征;前两个也通过单晶 X 射线衍射。咪唑氯金属盐表现出显着的 C H⋅⋅⋅Cl 氢键,导致在固态下扩展超分子组装。溶液1 H NMR 数据还显示了阳离子-阴离子缔合。Ge的合成与表征报告了 II卤金属盐 [EMIM][GeX 3 ] (X=Cl, Br, I) 和 [PYRR][GeCl 3 ],包括对咪唑鎓盐的同源系列的单晶 X 射线分析。在这些复合物中,分子间相互作用在固态下要弱得多,并且它们在溶液中似乎没有显着关联。CH 2 Cl 2溶液中Ge IV物质的循环伏安法实验显示出两种不同的不可逆还原波,归因于Ge