Push-Pull Arylethynyl Porphyrins: New Chromophores that Exhibit Large MolecularFirst-Order Hyperpolarizabilities

摘要

A new class of chromophores has been fabricated that features both electron-releasing and electron-withdrawing groups fused via an intervening ethynyl moiety to the carbon framework of a (porphinato)metal complex. These species possess large molecular first-order hyperpolarizabilities (beta). We report herein the synthesis, optical spectroscopy and the hyper-Rayleigh scattering data used to determine the beta values of two archetypal members of this new class of