AN ASSESSMENT OF 2ND-HARMONIC GENERATION BY DONOR-ACCEPTOR MOLECULES CONTAINING STILBENYL OR DIARYLAZO BRIDGES BETWEEN FERROCENYL DONOR ANDNITRO ACCEPTOR GROUPS
Bj. Coe et al., AN ASSESSMENT OF 2ND-HARMONIC GENERATION BY DONOR-ACCEPTOR MOLECULES CONTAINING STILBENYL OR DIARYLAZO BRIDGES BETWEEN FERROCENYL DONOR ANDNITRO ACCEPTOR GROUPS, Journal of organometallic chemistry, 464(2), 1994, pp. 225-232
The compounds [Fe(eta(5)-C5H5)(eta(5)-C5H4-Ar) (Ar = 4,4'-C6H4N2C6H4NO
2 (1), 4,4'-C6H4N2C6H3(2'-Me)NO, (2), 4,4'-C6H3(3-Me)N2C6H3(2'-Me)NO2
(3) and trans-4,4'-C6H4(CH=CH)C6H4NO2 (4) have been synthesized and th
eir second order non-linear optical properties assessed by use of the
Kurtz powder test for second harmonic generation on irradiation at 190
7 nm. The stilbenyl compound, 4, gave a signal of similar intensity to
that of a urea standard but the others gave no detectable signal.