caa a22 4500 378921843 CHVBK 20180305123607.0 cr unu---uuuuu 161128e20040101xx s 000 0 eng 10.1351/pac200476071409 doi (NATIONALLICENCE)gruyter-10.1351/pac200476071409 Multifunctional properties of monodisperse end-functionalized oligophenylenevinylenes [Elektronische Daten] [M. S. Wong, Z. H. Li] Novel series of monodisperse, end-functionalized oligophenylenevinylenes (OPVs) containing up to eight phenyl rings have been designed and synthesized by a convergent approach using the stereoselective Wadsworth-Emmons reactions for an investigation of technologically useful functional properties. According to PM3 semiempirical quantum mechanical calculations, the frontier molecular orbitals and the energy gap of an OPV could be shifted or tuned by the functional substituent(s) that are incorporated as end-caps. Our theoretical and experimental evidences have shown that the end-substituents of an oligomer do not affect coplanarity of the pi-conjugated system. It has also been found that the newly synthesized OPVs can exhibit various useful functional properties such as light-emitting properties, photovoltaic effects, third-order nonlinear optical responses, and chemical sensing properties depending on the nature of the end-substituents. In this contribution, the structural factor(s) that can enhance a specific functional property of a molecule or material will be discussed. © 2013 Walter de Gruyter GmbH, Berlin/Boston Wong M. S. Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, China aut Li Z. H. Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, China aut Pure and Applied Chemistry De Gruyter 76/7-8(2004-01-01), 1409-1420 0033-4545 76:7-8<1409 2004 76 pac https://doi.org/10.1351/pac200476071409 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.1351/pac200476071409 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wong M. S. Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, China aut NATIONALLICENCE 700 1- Li Z. H. Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, China aut NATIONALLICENCE 773 0- Pure and Applied Chemistry De Gruyter 76/7-8(2004-01-01), 1409-1420 0033-4545 76:7-8<1409 2004 76 pac CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter