Tran Phuong M, Wang Yuzhong, Lahm Mitchell E, Wei Pingrong, Molnar Christopher J, Schaefer Henry F, Robinson Gregory H
Department of Chemistry, Centre for Computational Chemistry, The University of Georgia, Athens, Georgia, 30602-2556, USA.
Chemistry. 2023 Nov 21;29(65):e202302258. doi: 10.1002/chem.202302258. Epub 2023 Oct 11.
The 1 : 2 reaction of the imidazole-based dithiolate (2) with GeCl • dioxane in THF/TMEDA gives 3, a TMEDA-complexed dithiolene-based germylene. Compound 3 is converted to monothiolate-complexed (5) and N-heterocyclic carbene-complexed (7) germanium(II) dithiolene complexes via Lewis base ligand exchange. A bis-dithiolene-based germylene (8), involving a 3c-4e S-Ge-S bond, has also been synthesized through controlled hydrolysis of 7. The bonding nature of 3, 5, and 8 was investigated by both experimental and theoretical methods.
基于咪唑的二硫醇盐（2）与GeCl₂•二氧六环在四氢呋喃/四甲基乙二胺中以1:2的比例反应，生成3，即一种与四甲基乙二胺络合的基于二硫烯的亚锗烯。化合物3通过路易斯碱配体交换转化为与单硫醇盐络合的（5）和与N-杂环卡宾络合的（7）锗（II）二硫烯络合物。还通过对7进行可控水解合成了一种基于双二硫烯的亚锗烯（8），其中涉及一个3c-4e S-Ge-S键。通过实验和理论方法研究了3、5和8的键合性质。
