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Oxygen‐binding to simple cobaltporphyrins combined with polyvinylmidazole
Author(s) -
Shinohara Hiromi,
Arai Takayuki,
Nishide Hiroyuki
Publication year - 2002
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/1521-3900(200208)186:1<135::aid-masy135>3.0.co;2-r
Subject(s) - cobalt , oxygen , tetraphenylporphyrin , porphyrin , chemistry , reaction rate constant , photochemistry , polymer chemistry , inorganic chemistry , organic chemistry , kinetics , physics , quantum mechanics
Reversible oxygen‐binding was observed at low temperature for the poly(vinylimidazole‐ co ‐octyl methacrylate) complexes of the simple or planar cobaltporphyrins (CoP) such as cobalt‐tetraphenylporphyrin and cobalt‐octaethylporphyrin. The oxygen‐binding affinity and rate constants were compared with those for the cobalt‐picketfence porphyrin, a typical oxygen‐carrier. The low oxygen‐binding affinity for the CoP complexes was attributed to the enormously large oxygen‐releasing rate constant.