COMPLEXES OF W(VI) AND MO(VI) WITH GLYCOLIC, LACTIC, CHLORO-LACTIC AND PHENYL-LACTIC, MANDELIC, AND GLYCERIC ACIDS STUDIED BY H-1 AND C-13 NUCLEAR-MAGNETIC-RESONANCE SPECTROSCOPY

被引：37

作者：

CALDEIRA, MM

RAMOS, ML

GIL, VMS

机构：

[1] Department of Chemistry, University of Coimbra, Coimbra,3049, Portugal

来源：

CANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE | 1987年 / 65卷 / 04期

关键词：

Sodium - Molybdenum compounds - Nuclear magnetic resonance - Solutions - Tungsten compounds;

D O I：

10.1139/v87-140

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A proton and carbon-13 nuclear magnetic resonance study is reported on the number, stoichiometry, geometry, and stability of the complexes that form when sodium tungstate or sodium molybdate is mixed with each one of the following a-hydroxyacids in aqueous solution at pH values in the range 3-8: glycolic, lactic, chloro-3- andphenyl-3-lactic, mandelic, and glyceric acids. The predominant complexes have 1:2 composition and pK of formation of the order of -15 to -16.

引用

页码：827 / 832

页数：6

共 24 条

[1]

Baes C.F., 1976, HYDROLYSIS CATIONS

[2]

BANERJEE SP, 1961, CURR SCI INDIA, V30, P380

[3] LACTATE COMPLEXES OF MOLYBDENUM(VI) [J].