Transient 1,1-Dimethyl-1-germene, (CH<sub>3</sub>)<sub>2</sub>GeCH<sub>2</sub>. Gas-Phase Pyrolytic Generation and EIMS, Matrix Isolation FTIR, and Theoretical Studies
作者:Valery N. Khabashesku、Konstantin N. Kudin、Josef Tamás、Sergei E. Boganov、John L. Margrave、Oleg M. Nefedov
DOI:10.1021/ja971134o
日期:1998.5.1
1-dimethyl-1-germa-3-thietane (2) and 1,1,3,3-tetramethyl-1-germacyclobutane (3) most likely proceed with the formation of the same transient species, 1,1-dimethyl-1-germene (1), detected both in the gas phase by electron impact mass spectrometry (EIMS) and in argon solid matrixes at 12 K by Fourier transform infrared (FTIR) spectroscopy. The production of methylgermylene (6) in the reactions studied has also been
1,1-二甲基-1-germa-3-thietane (2) 和 1,1,3,3-tetramethyl-1-germacyclobutane (3) 的真空热解最有可能继续形成相同的瞬态物种 1, 1-二甲基-1-锗烯 (1),通过电子轰击质谱 (EIMS) 在气相中检测到,在 12 K 的氩固体基质中通过傅里叶变换红外 (FTIR) 光谱检测到。还提出了在研究的反应中产生甲基锗 (6),这可能是由于 1 二次异构化为甲基乙基锗 (8),随后为 1-甲基-1-锗环丙烷 (9),然后 9 在更高的温度,与建议机制的理论考虑一致。根据谐波振动频率和红外强度的从头算和密度泛函理论计算以及相关分子的文献数据,已经提出了 1 和 6 的红外光谱的完整振动分配。高强度红外波段的分配...