Science Links Japan | Control of thermal stabilities of .MU.-.ETA.2:.ETA.2-peroxodicopper(II) complexes with dinuclear hexpyridine ligands having alkyl groups on bidgehead cabon atoms.

Control of thermal stabilities of .MU.-.ETA.2:.ETA.2-peroxodicopper(II) complexes with dinuclear hexpyridine ligands having alkyl groups on bidgehead cabon atoms.

Accession number;04A0258591

Title;Control of thermal stabilities of .MU.-.ETA.2:.ETA.2-peroxodicopper(II) complexes with dinuclear hexpyridine ligands having alkyl groups on bidgehead cabon atoms.

Author; KAJITA YUJI (Doshisha Univ., Fac. of Eng.) KODERA MASAHITO (Doshisha Univ., Fac. of Eng.) KANO KOJI (Doshisha Univ., Fac. of Eng.)

Journal Title;Abstracts. Symposium on Biofunctional Chemistry

Journal Code:L0836A

ISSN:

VOL.18th;NO.;PAGE.16-17(2003)

Figure&Table&Reference;FIG.3

Pub. Country;Japan

Language;Japanese

Abstract;Room temperature stable .MU.-.ETA.2:.ETA.2-peroxodicopper(II) complexes of sterically hindered hexapyridine ligands [Cu2(H6M4h)(O2)](PF6)2 (1) and [Cu2(M6M4h)(O2)](PF6)2 (2) have been synthesized to clarify the mechanism of reversible O2-binding by hemocyanin which is an O2-carrier protein in mollusks and arthropods. M6M4h ligand is obtained by methylation of H6M4h at bridgehead methine position. The crystal structures of 1 and 2 reveal that the average of Cu-O bond distances of 2 is longer than that of 1. Both 1 and 2 reversibly bind O2-molecule, and 2 easily release O2-molecule at lower temperature than 1. Here, we will discuss the reversible O2-binding of 1 and 2 on the basis of their crystal structures and resonance Raman spectral data. (author abst.)

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