STUDY OF PENTACYANONITROSYLCHROMATE ION .3. AQUATION

被引：11

作者：

BUSTIN, DI

EARLEY, JE

VLCEK, AA

机构：

[1] Department of Chemistry, Georgetown University, Washington, D. C.

[2] J. Heyrovsky Institute of Polarography, Czechoslovak Academy of Sciences, Prague

来源：

INORGANIC CHEMISTRY | 1969年 / 8卷 / 10期

关键词：

D O I：

10.1021/ic50080a005

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Aquation of Cr(CN)5N03- in mildly acidic solutions yields Cr(CN)2(H2O)3NO which is inert to further aquation. In solutions of pH less than 2, further loss of CN- occurs. The Cr-NO grouping remains intact until loss of CN- is complete. The slow step in the initial aquation is the loss of the first CN-. This step is first order in substrate with a rate constant k = k′K[H+]/(1 + K[H+]), where K is 9 × 102 M-1 and k′ is 7 × 10-3 sec-1 at 17.5° in 1 M NaCl. For k′, ΔH≠ is 19 kcal/mol. © 1969, American Chemical Society. All rights reserved.

引用

页码：2062 / +

页数：1

共 8 条

[1] STRUCTURE AND REACTIVITY OF TRANSITION-METAL COMPLEXES WITH POLYATOMIC LIGANDS .V. ELECTRON SPIN RESONANCE SPECTRA OF INTERMEDIATES AND SOME KINETIC RESULTS FOR ACID HYDROLYSIS OF [CR(CN)5NO]3- [J].