NMR-STUDIES OF PARAMAGNETIC METAL-ION INTERACTIONS WITH GLUCONATE AND 1,5-GLUCONOLACTONE

被引：14
|
作者：
CARPER, WR
COFFIN, DB
机构：
[1] Department of Chemistry, Wichita State University, Wichita
来源：
INORGANICA CHIMICA ACTA | 1990年 / 167卷 / 02期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1016/S0020-1693(00)80507-1
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The effect of temperature on the spin-lattice water proton relaxation rates (R1p) of metal ion- gluconate and metal ion-1,5-gluconolactone interactions is determined for hexaaqua Mn(II) and Co(Il) in D2O. Activation energies are reported for manganese(II) and cobalt(II) interactions with gluconate and manganese(II) interactions with 1,5- gluconolactone. The plots of 1n R1p versus T-1 contain an inflection for Mn(II)-gluconate and Co(II)-gluconate complexes in the temperature range 20-36 °C. The results are consistent with the bent chain form of gluconate being the primary structure in solution above 35 °C. © 1990.
引用
收藏
页码：261 / 264
页数：4
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