X-ray crystal structures and Mossbauer studies of some trismalonatoferrate(III) compounds

被引：22

作者：

Calogero, S

Stievano, L

Diamandescu, L

MihailaTarabasanu, D

Valle, G

机构：

[1] INST ATOM PHYS,R-76900 BUCHAREST,ROMANIA

[2] UNIV PADUA,CNR,CTR STUDIO BIOPOLIMERI,I-35100 PADUA,ITALY

来源：

POLYHEDRON | 1997年 / 16卷 / 23期

关键词：

malonatoferrate; crystal structure; Mossbauer spectroscopy; relaxation; Afanas'ev theory; Wickman theory; enriched iron;

D O I：

10.1016/S0277-5387(97)00195-2

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Three trismalonatoferrate compounds (20% enriched in Fe-57) NaBa (FeMa(3)). 3H(2)O (1), [Na-3 (FeMa(3))](2) . 8H(2)O (2), and Na-3(FeMa(3)). 8H(2)O . 1/2Sol (3) (Ma is the malonato anion and Sol is a solvate molecule) have been prepared and their X-ray crystal structures determined. The Mossbauer spectra exhibit a broadened line at 293 and 4.2 K indicating the presence of spin relaxation effects, The spectra data, fitted following Afanas'ev and Wickman models, point to the presence of spin-spin isotropic relaxation mechanism. (C) 1997 Elsevier Science Ltd.

引用

页码：3953 / 3966

页数：14

共 19 条

[1]

ABRAS A, 1986, THERMOCHIM ACTA, V101, P135

[2] PHOTOCHEMISTRY OF TRANSITION-METAL COORDINATION COMPOUNDS [J].