EXCHANGE OF AMMONIA WITH COBALT(2) AMMINES IN AQUEOUS SOLUTION

被引：13

作者：

MURRAY, R

LINCOLN, SF

GLAESER, HH

DODGEN, HW

HUNT, JP

机构：

[1] Department of Chemistry, Washington State University, Pullman, Washington

来源：

INORGANIC CHEMISTRY | 1969年 / 8卷 / 03期

关键词：

D O I：

10.1021/ic50073a028

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Kinetic data obtained by nmr line-broadening techniques are reported for aqueous ammonia solutions of cobalt(II). The rates of ammonia exchange and activation enthalpies are relatively insensitive to ammonia concentration in the range 3-30 M. For the rate law R = k[Co(II)], k298 in 14 M NH3 is ca.(3 ± 0.3) × 107 sec-1 and ΔH* is 13 ± 1 kcal/mole. The scalar coupling constant A/h for Co(NH3)62+ is calculated to be (8 ± 0.5) × 106 cps. Solutions not containing NH4+ show slightly different kinetic behavior. The results are similar to those found in anhydrous ammonia. © 1969, American Chemical Society. All rights reserved.

引用

页码：554 / &

共 4 条

[1]

Bjerrum J., 1957, METAL AMMINE FORMATI

[2] KINETICS OF EXCHANGE OF AMMONIA WITH HEXAAMMINECOBALT(2) COMPLEX IN ANHYDROUS AMMONIA [J].