Phenylene-bridged cross-conjugated 1,2,3-trisilacyclopentadienes
1,2,3-Trisilacyclopentadienes are obtained from the reactions of cyclotrisilene c-Si3R4 (R = iPr3C6H2) with phenyl and diphenyl acetylene, respectively. With 1,4-diethynyl benzene the cross-conjugated bridging of two of the Si3C2 cycles by a para-phenylene linker is achieved. UV/vis spectroscopy indicates a small but significant effect of cross-conjugation, which is confirmed by TD-DFT calculations. The formation mechanism of the 1,2,3-trisilacyclopentadienes is elucidated by VT NMR.
|ISBN||1364-548X (Electronic) 1359-7345 (Linking)|
|Authors||Zhao, H.; Klemmer, L.; Cowley, M. J.; Majumdar, M.; Huch, V.; Zimmer, M.; Scheschkewitz, D.|
|Responsible Garvan Author|
|Publisher Name||CHEMICAL COMMUNICATIONS|
|URL link to publisher's version||https://www.ncbi.nlm.nih.gov/pubmed/29998230|