ENHANCED 2ND-ORDER OPTICAL NONLINEARITY OF THIOPHENE-SPACED N-ALKYLPYRIDINIUM MALONONITRILE ZWITTERIONS

Authors
ABBOTTO A FACCHETTI A PAGANI GA YUAN LX PRASAD PN
Citation
A. Abbotto et al., ENHANCED 2ND-ORDER OPTICAL NONLINEARITY OF THIOPHENE-SPACED N-ALKYLPYRIDINIUM MALONONITRILE ZWITTERIONS, Gazzetta chimica italiana, 127(4), 1997, pp. 165-166
Citations number
8
Categorie Soggetti
Chemistry
Journal title
Gazzetta chimica italiana → ACNP
ISSN journal
00165603
Volume
127
Issue
4
Year of publication
1997
Pages
165 - 166
Database
ISI
SICI code
0016-5603(1997)127:4<165:E2ONOT>2.0.ZU;2-A
Abstract
A new series of chromophores is presented where a positively charged N -alkylpyridinium acceptor and a negatively charged dicyanomethanide do nor are spaced by a thiophene-based bridging unit; the unique combinat ion of these fragments results in dramatically enhanced first molecula r hyperpolarisabilities (mu beta as high as 13450 x 10(-48) esu).