Described are the synthetic conditions resulting in a significant improvement in both yield and reaction time of Z-β-(1-substituted-4-pyridinium)-α-cyano-4-styryldicyanomethanide chromophores. A decomposition study of the zwitterionic chromophores in solution is also described.

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Keywords Decomposition study, NLO chromophores, Synthesis, TCNQ adducts
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Journal Tetrahedron Letters
Weir, C.A.M. (Cara A. M.), Hadizad, T. (Tayebeh), Beaudin, A.M.R. (Andrew M. R.), & Wang, Z.Y. (2003). Effecient synthesis and decomposition study of optically nonlinear adducts of tetracyanoquinodimethane. Tetrahedron Letters, 44(25), 4697–4700. doi:10.1016/S0040-4039(03)01054-2