Diiron Complexes as a Functional Model for Hemerythrin.
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Accession number;00A0163484
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| Title;Diiron Complexes as a Functional Model for Hemerythrin. |
| Author;
ARII HIDEKAZU
(Nagoya Inst. of Technol., Fac. of Eng.)
JITSUKAWA KOICHIRO
(Nagoya Inst. of Technol., Fac. of Eng.)
MASUDA HIDEKI
(Nagoya Inst. of Technol., Fac. of Eng.)
EINAGA HISAHIKO
(Nagoya Inst. of Technol., Fac. of Eng.)
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Journal Title;Abstracts. Symposium on Biofunctional Chemistry
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Journal Code:L0836A
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ISSN:
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VOL.14th;NO.;PAGE.50-51(1999)
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| Figure&Table&Reference; |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;Hemerythrin with diiron centers reversibly binds molecular oxygen. In order to construct the diiron complex that enables to bind a dioxygen, novel dinucleating polypyridine ligands (TPPDO,BPPDO) were synthesized. The diiron complex with TTDO having four bulky tert-butyl groups can reversibly bind a dioxygen to form a peroxo complex, which was investigated by UV-vis, ESR, resonance Raman spectroscopic and manometric methods, and the coordination mode of which was assigned to be of .MU.-1,2 type. On the other hand, that with BPPDO containing two bulky substituents irreversibly bound a dioxygen, which showed decay at -78.DEG.C.. Accordingly, these facts suggest that the reversible binding of dioxygen is affected by the formation of hydrophobic sphere. (author abst.) |
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