OPTICAL STUDIES ON THE INTRAMOLECULAR CHARGE-TRANSFER PROPERTIES OF CONJUGATED BRIDGED DONOR - ACCEPTOR SUPERMOLECULES

被引:1
作者
SARICIFTCI, NS [1 ]
SEGELBACHER, U [1 ]
WEIGAND, B [1 ]
GRUPP, A [1 ]
MEHRING, M [1 ]
GREGORIUS, H [1 ]
MULLEN, K [1 ]
机构
[1] J GUTENBERG UNIV,INST ORG CHEM,W-6500 MAINZ 1,GERMANY
关键词
D O I
10.1016/0379-6779(91)91391-M
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Results of optical absorption, emission experiments on conjugated bridged donor - acceptor (push - pull) molecules in different solvents are reported. Solvatochromic properties of the molecules are analysed and deviations are observed from th usual dye behaviour. By increasing the chain length of the conjugated bridge the lowest energy absorption is only slightly effected whereas the next higher energy transition shifts significantly towards lower energies. An unusual bleaching of the lowest energy absorption is observed upon illumination by UV light that recovers on a long time scale under normal conditions.
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页码:2399 / 2402
页数:4
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