Synthesis, Crystal Structures, Linear and Nonlinear Optical Properties, and Theoretical Studies of (p-R-Phenyl)-, (p-R-Phenylethynyl)-, and (E)-[2-(p-R-Phenyl)ethenyl]dimesitylboranes and Related Compounds
作者:Zheng Yuan、Christopher D. Entwistle、Jonathan C. Collings、David Albesa-Jové、Andrei S. Batsanov、Judith A. K. Howard、Nicholas J. Taylor、Hanns Martin Kaiser、Dieter E. Kaufmann、Suk-Yue Poon、Wai-Yeung Wong、Christophe Jardin、Sofiane Fathallah、Abdou Boucekkine、Jean-François Halet、Todd B. Marder
DOI:10.1002/chem.200501096
日期:2006.3.20
hyperpolarizabilities being largest for the strongest R-substituent donors. AM1 calculations have been performed on these compounds, showing reasonable agreement with the experimentally obtained bond lengths and hyperpolarizabilities, as well as on several related hypothetical compounds containing multiple C==C bonds, most of which are proposed to have even larger hyperpolarizabilities.
(pR-苯基)二聚三氢呋喃酮(R = Me(2)N,MeO,MeS,Br,I),(pR-苯基乙炔基)二聚三氢呋喃酮(R = Me(2)N,MeO,MeS,H),(E) -[2-(pR-苯基)乙烯基]二聚异戊烯酮(R = Me(2)N,H(2)N,MeO,MeS,H,CN,NO(2)),(E)-[2-(2 -噻吩基乙炔基]二聚三ane烷和(E)-[2-(邻-碳烷基)乙烯基]二mes杂硼烷是通过适当的pR-苯基-和pR-苯基乙炔基锂试剂与二聚二氟磺隆氟化物反应并通过适当的硼氢化制备的pR-苯乙炔,2-乙炔基噻吩和邻乙炔基碳硼烷与二甲烯基硼烷。在多种溶剂中记录了它们的UV / Vis吸收和发射光谱,其中供体取代的化合物的荧光最大值特别是在高极性溶剂中表现出大的红移现象,指示电荷转移导致在激发态下产生大的偶极矩。(pR-苯基)二聚异丁烯酮(R = Me(2)N,MeO,MeS,Br,I),(E)-