K. Kondo et al., THE 3RD-ORDER OPTICAL NONLINEARITY OF THE PHENYLETHYNYL-SUBSTITUTED BENZENE SYSTEM, Journal of the Chemical Society, Chemical Communications, (1), 1995, pp. 55-56
Phenylethynyl substituted benzenes 1, 2 and 3 are synthesized by the P
d-coupling reaction of phenylacetylene with the corresponding bromoben
zene; the third-order optical non-linearity [chi((3))(omega)] increase
s with the participation of pi-conjugation through the triple bond as
determined by the degenerate four-wave mixing (DFWM) method in a chlor
oform solution.