Preparation of Thiophene-Coordinated Ruthenium Complexes for Nonlinear Optics

In Su Lee, Dae Seung Choi, Dong Mok Shin, Young Keun Chung, Cheol Ho Choi

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19 Scopus citations

Abstract

The new organometallic compounds [{(E)-2-SC4H 3CH=CHC6H4-X-p}Ru(C6Me 6)][CF3SO3]2 (X = MeO (1), Me (2), H (3), Br (4), NO2 (5)), bearing a (thiophene)Ru(C6Me 6)2+ fragment in the end group, have been prepared for nonlinear optical chromophores, and their hyperpolarizabilities have been measured by the HRS method. The static hyperpolarizability (β0) values of the complexes increase as the electron-acceptor power of the substituent X increases (MeO < Me < H < Br < NO2). Replacement of hexamethylbenzene with pentamethylcyclopentadienyl resulted in [{(E)-2-SC4H3CH=CHC6H4-NO 2-p}]Ru(C5Me5)]CF3SO3 (7), showing a significant increase in the hyperpolarizability. The substituent effects on β0 were studied by time-dependent DFT calculations.

Original languageEnglish
Pages (from-to)1875-1879
Number of pages5
JournalOrganometallics
Volume23
Issue number8
DOIs
StatePublished - 12 Apr 2004

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