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
Coinage Metal Carbonyls and Isocyanides: Synthesis and Characterization of the Gold(I) Complexes [HB(3,5-(CF3)2Pz)3]AuCO and [HB(3,5-(CF3)2Pz)3]AuCNBut
H. V. Rasika Dias,Wiechang Jin +1 more
TL;DR: In this article, the gold carbonyl and tert-butyl isocyanide complexes of the fluorinated trispyrazolyl)borate ligand [HB(3,5-(CF3)2Pz)3]- were reported.
Journal ArticleDOI
A New Class of Biomimetically Relevant “Scorpionate” Ligands. 1. The (2-Hydroxyphenyl)bis(pyrazolyl)methanes: Synthesis and Structural Characterization of Some Cobalt(II) Complexes
Timothy C. Higgs,Carl J. Carrano +1 more
TL;DR: In this paper, a new class of potentially biomimetic, tripodal, mixed functionality ligands, (2-hydroxyphenyl)bis(pyrazolyl)methane (L1), (2hydroxymhenyl), bis(3,5-dimethylpyrazyll) methane(L2), and (2.3-isopropylpyrazynyl) mithane (Methane) (L3), are described.
Book ChapterDOI
Copper-Dioxygen and Copper-Oxo Species Relevant to Copper Oxygenases and Oxidases
TL;DR: In this article, the active sites of these proteins comprise mononuclear, dinuclear, and trinuclear copper centers, with the copper ions displaying a variety of coordination numbers and stereochemistries.
Journal ArticleDOI
Synthesis and spectroscopic characterization of copper(II)-nitrito complexes with hydrotris(pyrazolyl)borate and related coligands.
Nicolai Lehnert,Ursula Cornelissen,Frank Neese,Tetsuya Ono,Yuki Noguchi,Ken-ichi Okamoto,Kiyoshi Fujisawa +6 more
TL;DR: This study focuses on the geometric (molecular) structures, spectroscopic properties, and electronic structures of copper(II)-nitrito complexes as a function of second coordination sphere effects using a set of closely related coligands.
Journal ArticleDOI
Dioxygen Cleavage and Methane Activation on Diiron Enzyme Models: A Theoretical Study
TL;DR: In this article, two possible mechanisms for dioxygen cleavage on non-heme diiron enzyme models were studied with an approximate molecular orbital method, the extended Huckel method.