RUTHENIUM(IV) IN NITRIC-ACID MEDIA

被引：24

作者：

MAYA, L

机构：

[1] Chemistry Division, Oak Ridge National Laboratory, Oak Ridge, TN 37830, P.O. Box X

来源：

JOURNAL OF INORGANIC & NUCLEAR CHEMISTRY | 1979年 / 41卷 / 01期

关键词：

D O I：

10.1016/0022-1902(79)80396-6

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Nitrosyl ruthenium nitrates undergo photolytic dissociation to yield nitric oxide and a Ru(III) intermediate which is spontaneously oxidized in nitric acid to a Ru(IV) species. The Ru(III)-Ru(IV) conversion is acid dependent and proceeds faster at high acid concentrations. The photodissociation reaction can be reversed by sparging the nitric acid solution containing Ru(IV) with NO. The Ru(IV) species obtained by photodissociation in nitric acid has been identified as Ru4(OH)124+ by the commonality of its chemical and electrochemical behavior in perchloric acid. The Ru(IV) species can be reduced in two one-electron processes to species with average oxidation numbers of 3.75 and 3.5. The Ru(IV) species can be oxidized to Ru(VIII); in addition, a species with an intermediate oxidation state with an average value of 4.38 has been observed. © 1979.

引用

页码：67 / 71

页数：5

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