A monomeric manganese(II) catecholato complex: Synthesis, crystal structure, and reactivity toward molecular oxygen

被引：3

作者：

Agake, Shin-ichiro ^{[1
,6
]}

Komatsuzaki, Hidehito ^{[1
]}

Satoh, Minoru ^{[1
]}

Agou, Tomohiro ^{[2
]}

Tanaka, Yuya ^{[3
,4
]}

Akita, Munetaka ^{[3
,4
]}

Nakazawa, Jun ^{[5
]}

Hikichi, Shiro ^{[5
]}

机构：

[1] Ibaraki Coll, Dept Ind Engn, Natl Inst Technol, 866 Nakane, Hitachinaka, Ibaraki 3128508, Japan

[2] Ibaraki Univ, Dept Quantum Beam Sci, Grad Sch Sci & Engn, 4-12-1 Nakanarusawa, Hitachi, Ibaraki 3168511, Japan

[3] Inst Innovat Res, Lab Chem & Life Sci, Midori Ku, 4259 Nagatsuta Cho, Yokohama, Kanagawa 2268503, Japan

[4] Tokyo Inst Technol, Sch Mat & Chem Technol, Midori Ku, 4259 Nagatsuta Cho, Yokohama, Kanagawa 2268503, Japan

[5] Kanagawa Univ, Dept Mat & Life Chem, Fac Engn, Kanagawa Ku, 3-27-1 Rokkakubashi, Yokohama, Kanagawa 2218686, Japan

[6] Tokyo Univ Agr & Technol, Dept Sci Biol Prod, 3-5-8 Saiwaicho, Fuchu, Tokyo 1838509, Japan

来源：

INORGANICA CHIMICA ACTA | 2019年 / 484卷

关键词：

Manganese complex; Hydrotris(pyrazolyl)borate; Catecholato ligand; Dioxygen activation; Catechol dioxygenase; IRON ACTIVE-SITES; MODEL COMPLEXES; MANGANESE(II)-SEMIQUINONATE COMPLEX; PROTOCATECHUATE 3,4-DIOXYGENASE; EXTRADIOL DIOXYGENASE; GLOBIFORMIS CM-2; OXIDATION; ACTIVATION; LIGAND; ALKYLPEROXO;

D O I：

10.1016/j.ica.2018.09.013

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A monomeric manganese(II) catecholato complex with hydrotris(3-tert-butyl-5-isopropyl-1-pyrazolyl)borate (Tp(tBu,iPr)) was synthesized and characterized. X-ray analysis of the compound shows a tetrahedral manganese coordinated to one oxygen atom of the catecholato ligand and three nitrogen atoms of the Tp(tBu,iPr) ligand. The Mn-O distance (1.952(5) angstrom) is longer than the corresponding Fe-O distance (1.874(7) angstrom) in the analogous iron(II) Tp(tBu,iPr) complex due to the weaker Lewis acidity of manganese(II). Upon reacting of the manganese(II) complex with molecular oxygen, a manganese(II) semiquinonato complex was obtained, thus serving as an important model for catechol dioxygenase. This differs from the reaction of the iron(II) analog, which generates an iron(III) catecholato complex.

引用

页码：424 / 429

页数：6

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