Syntheses, crystal structures and magnetic properties of heterometallic copper-lanthanide clusters [Cu12Ln6(μ3-OH)24(μ-O2CR)12(H2O)18(μ12-ClO4)]5+ (Ln = La, Nd; R = CH2Cl, CCl3)

被引：36
作者：
Cui, Y [1 ]
Chen, JT [1 ]
Huang, JS [1 ]
机构：
[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fujian 350002, Peoples R China
来源：
INORGANICA CHIMICA ACTA | 1999年 / 293卷 / 02期
基金：
中国国家自然科学基金;
关键词：
crystal structures; magnetism; copper complexes; lanthanide complexes; cluster complexes;
D O I：
10.1016/S0020-1693(99)00191-7
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Two heterometallic copper-lanthanide clusters [Cu12La6(mu(3)-OH)(24)(mu-O2CCH2Cl)(12)(H2O)(18)(mu(12)-ClO4)][(NO3)(4)(OH)]. 10H(2)O (1) and [Cu12Nd6(mu(3)-OH)(24)(mu-O2CCCl3)(12)(H2O)(18)(mu(12)-ClO4)][O2CCCl3](5). 22H(2)O (2) have been prepared from the reaction system of aqueous Cu2+-Ln(3+)--O2CR, using ClO4- anions as templates at pH 7, and structurally characterized by X-ray crystallography. The two cluster cations are similar and each contain a [Cu(12)Ln(6)(mu(3)-OH)(24)](18+) octahedral core, which encapsulates a mu(12)-ClO4- ion at the center and has 12 bridging carboxylate groups and 18 water molecules as external ligands. The magnetic measurements reveal that the Cu12La6 cluster exhibits a very strong antiferromagnetic interaction between pairs of Cu(II) ions, while the Cu12Nd6 cluster exhibits an overall weak antiferromagnetic interaction. (C) 1999 Elsevier Science S.A. All rights reserved.
引用
收藏
页码：129 / 139
页数：11
相关论文
共 46 条
[1]   CRYSTAL-STRUCTURE AND MAGNETIC-PROPERTIES OF [LN2CU4] HEXANUCLEAR CLUSTERS (WHERE LN = TRIVALENT LANTHANIDE) - MECHANISM OF THE GD(III)-CU(II) MAGNETIC INTERACTION [J].
ANDRUH, M ;
RAMADE, I ;
CODJOVI, E ;
GUILLOU, O ;
KAHN, O ;
TROMBE, JC .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1993, 115 (05) :1822-1829
[2]  
[Anonymous], 1997, SUPRAMOLECULAR CHEM
[3]   Anion selective recognition and optical/electrochemical sensing by novel transition-metal receptor systems [J].
Beer, PD .
CHEMICAL COMMUNICATIONS, 1996, (06) :689-696
[4]   Magnetic and structural studies of copper-lanthanoid complexes; The synthesis and structures of new Cu(3)Ln complexes of 6-chloro-2-pyridone (Ln=Gd, Dy and Er) and magnetic studies on Cu2Gd2, Cu4Gd2 and Cu3Gd complexes [J].
Benelli, C ;
Blake, AJ ;
Milne, PEY ;
Rawson, JM ;
Winpenny, REP .
CHEMISTRY-A EUROPEAN JOURNAL, 1995, 1 (09) :614-618
[5]   SYNTHESIS, CRYSTAL-STRUCTURE, AND MAGNETIC-PROPERTIES OF TETRANUCLEAR COMPLEXES CONTAINING EXCHANGE-COUPLED GD2CU2, DY2CU2 SPECIES [J].
BENELLI, C ;
CANESCHI, A ;
GATTESCHI, D ;
GUILLOU, O ;
PARDI, L .
INORGANIC CHEMISTRY, 1990, 29 (09) :1750-1755
[6]  
Blake AJ, 1997, J CHEM SOC DALTON, P485
[7]   LANTHANIDE(III) COPPER(II) SQUARATES - SYNTHESIS, CRYSTAL-STRUCTURE, MAGNETISM AND THERMAL-BEHAVIOR OF [LA2CU(C4O4)4(H2O)16].2H2O AND [GD2CU(C4O4)4(H2O)12].2H2O [J].
BOUAYAD, A ;
BROUCACABARRECQ, C ;
TROMBE, JC ;
GLEIZES, A .
INORGANICA CHIMICA ACTA, 1992, 195 (02) :193-201
[8]   Heterometallic complexes containing d- and f-block elements: Synthesis and structural characterisation of novel Ni-Er and Co-Dy compounds [J].
Brechin, EK ;
Harris, SG ;
Parsons, S ;
Winpenny, REP .
JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1997, (10) :1665-1666
[9]   CHEMICAL AND PHYSICAL-PROPERTIES OF TRIANGULAR BRIDGED METAL-COMPLEXES [J].
CANNON, RD ;
WHITE, RP .
PROGRESS IN INORGANIC CHEMISTRY, 1988, 36 :195-298
[10]  
CASEY AT, 1976, THEORY APPL MOL PARA, P271
12345