Electron-Deficient Acridone Derivatives as a New Functional Core Towards Low-Bandgap Metallopolyynes

• Published in: Macromolecular chemistry and physics Vol. 208; no. 10; pp. 1129 - 1136
• Main Authors: Chow, Wing-Cheong, Zhou, Gui-Jiang, Wong, Wai-Yeung
• Format: Journal Article
• Language: English
• Published: Weinheim WILEY-VCH Verlag 21.05.2007; WILEY‐VCH Verlag; Wiley
• Subjects: acridone; cyano groups; donor-acceptor compounds; metallopolymers; NMR; photoluminescence; Physical Sciences; platinum(II) polyynes; Polymer Science; Science & Technology; synthesis; synthesis; acridone; photoluminescence; METAL DIYNES; cyano groups; ENERGY-GAP; COPOLYMERS; INTRAMOLECULAR CHARGE-TRANSFER; EUROPIUM(III) LUMINESCENCE; metallopolymers; NMR; FLUORENE SERIES; CONJUGATED POLYMERS; platinum(II) polyynes; OPTICAL SPECTROSCOPY; donor-acceptor compounds; UNITS
• ISSN: 1022-1352; 1521-3935
• DOI: 10.1002/macp.200700091

The synthesis, thermal, and photoluminescence properties of novel platinum metallopolyynes of electron‐deficient acridone derivatives with electronically tunable bandgaps and their molecular model complexes are described. Polymer P2 has an optical bandgap (Eg) of 2.10 eV which is much lowered than that of P1 (2.60 eV). The incorporation of electron‐accepting dicyanomethylene units on the acridone ring in the main chain creates a strong π‐conjugated system that features unique donor‐acceptor interactions and intramolecular charge‐transfer states.