American Chemical Society
om500814g_si_002.cif (173.57 kB)

Interconversion among Dianionic, Anionic, and Neutral Compounds Bearing a Bond between Two Pentacoordinated Germanium Atoms

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posted on 2015-12-17, 06:51 authored by Naokazu Kano, Satoru Tsukada, Yusuke Shibata, Takayuki Kawashima, Hiroyasu Sato, Jing-Dong Guo, Shigeru Nagase
The first dianionic compounds bearing a bond between two pentacoordinated germanium atoms have been synthesized in a stable form as candidates for a core unit to construct unprecedented structures in group 14 element chemistry. X-ray crystallographic analysis and computational study indicated the single-bond character of the Ge–Ge bond. They were reversibly converted to the anionic and neutral Ge–Ge-bonded compounds while maintaining the coordination number of the germanium atoms. The interconversion features changes in structures around the germanium atoms, including changes from a staggered conformation of the Ge–O bonds to a parallel conformation.