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Dr. Manuel Hodecker Dr. Yury Kozhemyakin Svenja Weigold Dr. Frank Rominger Dr. Jan Freudenberg Prof. Dr. Andreas Dreuw Prof. Dr. Uwe H. F. Bunz 《Chemistry (Weinheim an der Bergstrasse, Germany)》2020,26(71):16990-16993
The synthesis of a doubly bridged 1,4-bis(phenylethynyl)benzene is reported. The target displays photophysical properties, distinctly different from that of its congeners, the singly bridged tolans. Quantum-chemical calculations suggest a lack of planarization of the bridged bis(phenylethynyl)benzene in the first excited state. 相似文献