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The Radical Anion of Cyclopentasilane-Fused Hexasilabenzvalene
Akihiro Tsurusaki1,2, Soichiro Kyushin3
1Division of Molecular Science, Graduate School of Science and Technology, Human Resources Cultivation Center, Gunma University, Kiryu, Gunma 376-8515 (Japan). a.tsurusaki@aist.go.jp.
Abstract:
The radical anion of cyclopentasilane-fused hexasilabenzvalene was synthesized by the reduction of the corresponding neutral compound. X-ray crystallographic analysis showed a more trans-bent structure of the disilene moiety than the neutral compound. Theoretical calculations showed that the highly trans-bent structure is attributed to the hexasilabenzvalene structure. The EPR spectrum showed that an unpaired electron exists mainly at the disilene moiety. In the UV/Vis spectrum, a large bathochromic shift was observed compared with the neutral compound.
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