C-13 NUCLEAR MAGNETIC-RESONANCE STUDY OF COORDINATED THIOCYANATE, SELENOCYANATE, AND CYANATE

被引：64

作者：

KARGOL, JA ^{[1
]}

CRECELY, RW ^{[1
]}

BURMEISTER, JL ^{[1
]}

机构：

[1] UNIV DELAWARE,DEPT CHEM,NEWARK,DE 19711

来源：

INORGANIC CHEMISTRY | 1979年 / 18卷 / 09期

关键词：

D O I：

10.1021/ic50199a040

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Carbon-13 chemical shifts have been measured for thiocyanate, cyanate, and selenocyanate in a variety of transition-metal complexes. The effects of cation and solvent changes upon the chemical shifts of the ionic pseudohalides have been determined. Changes in hybridization are more important than electron excitation energy changcs and substituent changes in determining chemical shifts, for both ionic and complexed species. The ordering of the ions in terms of increasing shielding is <OCN- <SeCN-. The ordering for thiocyanate and selenocyanate in terms of increasing shielding as a function of bonding mode is M-NCS(Se) < NCS(Se)- < M-S(Se)CN. The technique is therefore of considerable utility in the determination of the bonding mode adopted by these groups in solutions of the complexes. © 1979, American Chemical Society. All rights reserved.

引用

页码：2532 / 2535

页数：4

共 44 条

[1] STUDY OF COORDINATION BEHAVIOR OF THIOCYANATE AND CYANATE IONS IN SOME PLATINUM(II) COMPLEXES BY HETERONUCLEAR RESONANCE SPECTROSCOPY [J].