MAGNETIC-RESONANCE STUDY OF THE MN(II)-POLY(ACRYLIC ACID) INTERACTION

被引：13

作者：

WESTRA, SWT ^{[1
]}

LEYTE, JC ^{[1
]}

机构：

[1] STATE UNIV LEIDEN,DEPT PHYS CHEM,LEIDEN,NETHERLANDS

来源：

JOURNAL OF MAGNETIC RESONANCE | 1979年 / 34卷 / 03期

关键词：

D O I：

10.1016/0022-2364(79)90135-5

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

1H nuclear magnetic relaxation data over a frequency range of 1.9-60 MHz and Mn(II) X-band EPR spectra of aqueous poly(acrylic acid) solutions, containing Mn(II), are used for an analysis of the metal ion-polyion interaction. The EPR spectra indicate that the Mn(II) ions remain fully hydrated on interacting with the polyacid, whereas a description in terms of a free and an associated phase for the metal ions is needed to reproduce the observed nuclear relaxation rates. In the associated phase the metal ion-polyion interaction changes the values of the parameters characterizing the dynamical behavior of the Mn(H2O)62+ complex. © 1979.

引用

页码：475 / 489

页数：15

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