Synthesis, crystal structure and magnetic properties of the malonato-bridged bimetallic chain [Mn(II)Cu(II)(mal)2(H2O)4]•2H2O

被引：69
作者：
Ruiz-Pérez, C
Sanchiz, J
Hernández-Molina, M
Lloret, F
Julve, M
机构：
[1] Univ La Laguna, Dept Fis Fundamental 2, Grp Rayos X, La Laguna 38204, Tenerife, Spain
[2] Univ La Laguna, Dept Quim Inorgan, La Laguna 38204, Tenerife, Spain
[3] Univ Valencia, Fac Quim, Dept Quim Inorgan, E-46100 Burjassot, Valencia, Spain
来源：
INORGANICA CHIMICA ACTA | 2000年 / 298卷 / 02期
关键词：
crystal structures; manganese complexes; copper complexes; malonate complexes; bimetallic complexes;
D O I：
10.1016/S0020-1693(99)00451-X
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The first malonato-bridged bimetallic chain of formula [MnCu(mal)(2)(H2O)(4)]. 2H(2)O (1) (H(2)mal = malonic acid) was prepared and its structure determined by X-ray diffraction methods. Each copper atom in 1 is in a square planar environment formed by four malonate-oxygens from two malonate ligands. The manganese atom is six-coordinated with four water molecules and two cis-coordinated malonate-oxygens from two malonate groups building a distorted octahedral surrounding. The malonate group acts simultaneously as bidentate and monodentate ligand towards copper and manganese atoms respectively, leading to a bimetallic chain. Two structurally different carboxylato-bridges exhibiting an anti-syn conformation alternate regularly within the chain, the intrachain copper-manganese separations being 4.790(1) and 5.209(1) Angstrom. Its magnetic behaviour is typical of a ferrimagnetic Cu(II)Mn(II) bimetallic chain with intrachain antiferromagnetic coupling. The fully dehydrated phase of complex 1 exhibits an overall antiferromagnetic behaviour. (C) 2000 Elsevier Science S.A. All rights reserved.
引用
收藏
页码：202 / 208
页数：7
相关论文
共 32 条
[1]  
ALTOMARE A, IN PRESS J APPL CRYS
[2]   INTERCHAIN INTERACTIONS AND 3-DIMENSIONAL MAGNETIC-ORDERING IN MN(II)CU(II) CHAIN COMPOUNDS - CRYSTAL-STRUCTURE AND METAMAGNETIC PROPERTIES OF MNCU(PBAOH)(H2O)(3)-CENTER-DOT-2H(2)O, WITH PBAOH=2-HYDROXO-1,3-PROPYLENEBIS(OXAMATO) [J].
BARON, V ;
GILLON, B ;
SLETTEN, J ;
MATHONIERE, C ;
CODJOVI, E ;
KAHN, O .
INORGANICA CHIMICA ACTA, 1995, 235 (1-2) :69-76
[3]  
BRUEGGEMANN R, 1990, PC ADAPTATION ORTEP
[4]   X-ray crystal structures and Mossbauer studies of some trismalonatoferrate(III) compounds [J].
Calogero, S ;
Stievano, L ;
Diamandescu, L ;
MihailaTarabasanu, D ;
Valle, G .
POLYHEDRON, 1997, 16 (23) :3953-3966
[5]   Ability of terephthalate (ta) to mediate exchange coupling in ta-bridged copper(II), nickel(II), cobalt(II) and manganese(II) dinuclear complexes [J].
Cano, J ;
DeMunno, G ;
Sanz, JL ;
Ruiz, R ;
Faus, J ;
Lloret, F ;
Julve, M ;
Caneschi, A .
JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1997, (11) :1915-1923
[6]  
CASEY T, 1976, THEORY APPL MOL PARA, pCH2
[7]   SYNTHESIS AND STRUCTURAL STUDIES OF TETRAAQUACOPPER(II) DIAQUABIS(MALONATO)CUPRATE(II) [J].
CHATTOPADHYAY, D ;
CHATTOPADHYAY, SK ;
LOWE, PR ;
SCHWALBE, CH ;
MAZUMDER, SK ;
RANA, A ;
GHOSH, S .
JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1993, (06) :913-916
[8]   LOW-TEMPERATURE INVESTIGATION OF THE FERRIMAGNETIC CHAINS MNCO(EDTA).6H2O, MNNI(EDTA).6H2O, AND MNCU(II)(EDTA).6H2O - THERMAL AND MAGNETIC-PROPERTIES [J].
CORONADO, E ;
DRILLON, M ;
NUGTEREN, PR ;
DEJONGH, LJ ;
BELTRAN, D ;
GEORGES, R .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1989, 111 (11) :3874-3880
[9]  
de Muro IG, 1998, INORG CHEM, V37, P3243
[10]  
Enraf-Nonius, 1994, CAD 4 EXPR VERS 5 1
1234