Syntheses and Electronic Behaviors of Several Phenylene-Chromium, -Molybdenum and/or -Tungsten Hybrid Copolymers

• Published in: Journal of macromolecular science. Part A, Pure and applied chemistry Vol. 42; no. 6; pp. 733 - 740
• Main Authors: Matsui, Hideo, Watanabe, Teruaki, Yoshihara, Masakuni
• Format: Journal Article
• Language: English
• Published: Colchester Taylor & Francis Group 01.06.2005; Taylor & Francis
• Subjects: Applied sciences; chromium; electron transfer; Exact sciences and technology; hybrid copolymer; Inorganic and organomineral polymers; molybdenum; Physicochemistry of polymers; Preparation; tungsten; chromium; Solution polycondensation; Tungsten compound; Organometallic copolymer; Chromium compound; Electron transfer; Experimental study; Molybdene compounds; Sulfur copolymer; tungsten; Preparation; Aromatic copolymer; Ultraviolet visible spectrum; EPR spectrum; hybrid copolymer; X-ray photoelectron spectra; molybdenum
• ISSN: 1060-1325; 1520-5738
• DOI: 10.1081/MA-200058639

Four binary hybrid copolymers having chromium-O-phenylene, chromium-S-phenylene, molybdenum-S-phenylene, and tungsten-S-phenylene units, two ternary hybrid copolymers having molybdenum-phenylene-chromium and chromium-phenylene-tungsten units, and further, a quartic hybrid copolymer having a molybdenum-phenylene-chromium-phenylene-tungsten framework were synthesized, and their electronic behaviors were examined. The results of UV-VIS, ESR, and XPS spectral analyses indicated that, in the ternary hybrid copolymers, an electron transfer takes place from chromium atom to either molybdenum or tungsten, and, in the quartic hybrid copolymer, an electron transfer takes place in the process of tungsten→molybdenum→chromium.