Organometallic complexes for nonlinear optics Part 21. Syntheses and quadratic hyperpolarizabilities of alkynyl complexes containing optically active 1,2-bis(methylphenylphosphino)benzene ligands

Abstract

The preparation of the chloro complex trans-[FeCl2{(R,R)-diph}2] (1) and the alkynyl complexes trans-[M(4-C≡CC6H4R)Cl{(R,R)-diph}2] [M = Fe, R = NO2 (2); M = Ru, R = H (4), NO2 (5), (E)-CH=CH-4-C6H4NO2 (6); M = Os, R = NO2 (7)], incorporating the optica