TUNING THE REACTIVITIES OF RUTHENIUM-OXO COMPLEXES WITH ROBUST LIGANDS - A RUTHENIUM(IV)-OXO COMPLEX OF 6,6'-DICHLORO-2,2'-BIPYRIDINE AS AN ACTIVE OXIDANT FOR STOICHIOMETRIC AND CATALYTIC ORGANIC OXIDATION

被引：69

作者：

CHE, CM

HO, C

LAU, TC

机构：

来源：

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS | 1991年 / 08期

关键词：

D O I：

10.1039/dt9910001901

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The synthesis and characterization of [Ru(II)(terpy) (dcbipy) (H2O)]2+ (terpy = 2,2':6',2"-terpyridine; dcbipy = 6,6'-dichloro-2,2'-bipyridine) are described. Oxidation of this complex with Ce(IV) gave [Ru(IV) (terpy) (dcbipy)O]2+, isolated as a greenish yellow perchlorate salt. The Ru(IV) = O complex is paramagnetic (mu-eff = 2.83) and exhibits a Ru = O stretch at 780 cm-1. It is a powerful oxidant with E-degrees (Ru(IV)-Ru(III)) = 1.13 V vs. saturated calomel electrode at pH 1.0 and can selectively oxidize the tertiary C-H bond of adamantane. The mechanism of alkene oxidation by Ru(IV) = O has been investigated and discussed. The complex [Ru(II)(terpy) (dcbipy) (H2O)]2+ is a robust catalyst for the oxidation of saturated alkanes by tert-butyl hydroperoxide.

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页码：1901 / 1907

页数：7

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