Journal ArticleDOI
A new model for dioxygen binding in hemocyanin. Synthesis, characterization, and molecular structure of the .mu.-.eta.2:.eta.2 peroxo dinuclear copper(II) complexes, [Cu(HB(3,5-R2pz)3)]2(O2) (R = isopropyl and Ph)
Nobumasa Kitajima,Kiyoshi Fujisawa,Chisato Fujimoto,Yoshihiko Moro-oka,Shinji Hashimoto,Teizo Kitagawa,Koshiro Toriumi,Kazuyuki Tatsumi,Akira Nakamura +8 more
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TLDR
In this article, the synthesis and characterization of μ-η 2 : η 2 peroxo dinuclear copper(II) complexes which to oxyhemocyanin (or oxytyrosinase) in their physicochemical properties are presented.Abstract:
The synthesis and characterization of μ-η 2 :η 2 peroxo dinuclear copper(II) complexes which to oxyhemocyanin (or oxytyrosinase) in their physicochemical properties are presented. The low-temperature reaction of a di-μ-hydroxo copper(II) complex [Cu(HB(3,5-i-Pr 2 pz) 3 )] 2 (OH) 2 (8) with H 2 O 2 gave a μ-peroxo complex [Cu(HB(3,5-i-Pr 2 pz) 3 )] 2 (O 2 ) (6)read more
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Journal ArticleDOI
Synthesis of a macrobicycle incorporating the tris(pyrazolyl)methane ligand.
Leyong Wang,Jean-Claude Chambron +1 more
TL;DR: A functionalized tris(pyrazolyl)methane chelate is proposed to incorporate in a macrobicyclic structure in order to create a cavity with well-defined dimensions and shape.
Book ChapterDOI
Functional Models for Hemocyanin and Copper Monooxygenases
Zoltan Tyeklar,Kenneth D. Karlin +1 more
TL;DR: The active structures and reactivity of copper protein active sites have been of longtime interest to inorganic chemists, because of the novel coordination sites and their associated physical and spectroscopic features as mentioned in this paper.
Journal ArticleDOI
Copper(I) and copper(II) dinuclear complexes of a macrocyclic ligand derived from the 2:2 condensation of pyridine-2,6-dicarboxaldehyde and 1,4,7-triazaheptane
TL;DR: In this paper, the macrocyclic Schiff base ligand 3,6,9,17,20,23,28,29-octaazatricyclo[23.111,15]tridecanedeca-1(28),2, 9,11,13,15(30),16, 23,25(29),26-ene (PD)2(DIEN)2, 1, was prepared from the 2:2 condensation of diethylenetriamine and pyridine-2,6-dicar
Journal ArticleDOI
Structure and spectra of dicopper(I) dioxygen species and their ammino complexes studied by ab initio calculations
TL;DR: In this paper, the authors performed ab initio calculations on the species resulting from the co-ordination of molecular oxygen to two Cu(I) centers and found that the highest symmetry structure of [Cu 2 O 2 ] 2+ species in a closed shell singlet state was found to be the lowest energy one (the global minimum) on the six-dimensional hypersurface.
Journal ArticleDOI
A synthetic quest for tris(imidazolyl) carboxylates and their metal complexes: active site models for quercetin 2,3-dioxygenases and other non-heme redox metalloenzymes
TL;DR: Synthetic routes to tris(imidazolyl)carboxylate ligands and representative metal complexes are reported, which provide more accurate active site models for several classes of redox metalloenzymes as mentioned in this paper.