Synthesis, structural characterization, and extradiol oxygenation of iron-catecholato complexes with hydrotris(pyrazolyl)borate ligands

被引：81
|
作者：
Ogihara, T [1 ]
Hikichi, S [1 ]
Akita, M [1 ]
Moro-oka, Y [1 ]
机构：
[1] Tokyo Inst Technol, Resources Utilizat Res Lab, Midori Ku, Yokohama, Kanagawa 2268503, Japan
来源：
INORGANIC CHEMISTRY | 1998年 / 37卷 / 11期
关键词：
D O I：
10.1021/ic9716215
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Fe(III)-catecholato complexes with the hydrotris(pyrazolyl)borate ligands (Tp(R); R denotes substituents of the 3- and 5-positions of the pyrazolyl rings) are synthesized as structural and functional models for catechol dioxygenase enzymes. Coordination geometry of the Fe centers depends on the steric hindrance of the Tp(R) ligands. O-2 treatment of Tp(Pri2)Fe(III)(DBC) (DBCH2 = 3,5-di-tert-butylcatechol) affords as major products those derived from extradiol cleavage of the catechol, although a highly hindered Tp(R) ligand complex, Tp(But,Pri)Fe(III)(DBC), is relatively inert toward O-2.
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收藏
页码：2614 / +
页数：3
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