Rhodanine-methine as π-electron acceptor in second-order nonlinear optical chromophores

Article abstract of DOI:10.1016/S0040-4039(00)76683-4

This study describes the synthesis, electronic absorption and second-order nonlinear optical properties of a series of new dialkylamino electron-donor and rhodanine-methine electron-acceptor substituted conjugated compounds. EFISH studies indicate that rhodanine-methine acceptor offers substantially enhanced molecular nonlinear properties (β·) compared to the well known and commonly used nitro acceptor.