The synthesis of organic chromophores as nonlinear optical (NLO) materials has attracted much attention in late years.[1]They could be used in optical modulation, molecular switching, optical memory, and frequency doubling applications.[1]b,[2]Recently, it has been revealed that the products of dipole moment and molecular hyperpolarizability (μβ) of heterocyclic moieties are higher than those of the benzene analogs.[3]Besides the common accepting groups, the ...