Metal Complexes as Acceptor Groups

Metal complexes of nitrogen heterocyclic ligands, such as pyridines and oligopyridines, represent an important class of NLO chromophores which have received much attention during the last fifteen years. 

As in the case of donor-substituted stilbazoles, the second-order NLO responses of donor-substituted styryl bipyridines and phenanthro-lines are significantly enhanced upon coordination to a metal centre. 

METAL-BASED QUADRATIC NONLINEAR OPTICAL MATERIALS 

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