Di-2-pyridyl ketone oxime in 3d-metal carboxylate cluster chemistry:: a new family of mixed-valence Mn2IIMn2III complexes

被引:38
作者
Milios, CJ
Raptopoulou, CP
Terzis, A
Vicente, R
Escuer, A [1 ]
Perlepes, SP
机构
[1] Univ Patras, Dept Chem, Patras 26504, Greece
[2] NCSR Demokritos, Inst Sci Mat, Athens 15310, Greece
[3] Univ Barcelona, Dept Quim Inorgan, Barcelona 08028, Spain
关键词
crystal structures; Di-2-pyridyl ketone oxime; magnetic properties; tetranuclear mixed-valence manganese complexes;
D O I
10.1016/S1387-7003(03)00183-7
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Several reaction schemes involving di-2-pyridyl ketone oxime, (py)(2)CNOH, Mn sources, RCO2- ligands and X- in MeCN or MeCN/EtOH lead to the new family of mixed-valence complexes [(Mn2Mn2III)-Mn-II(O2CR)(2)X-2{(py)(2)CNO}(2){(py)(2)CO2}(2)] (R = Me, Ph; X = Cl, Br; (py)(2)CO22- = the gem-diolate(-2) form of di-2-pyridyl ketone). The products have been characterized by single crystal X-ray crystallography and exhibit the same structural motif Magnetic studies indicate weak antiferromagnetic exchange interactions in the complexes. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:1056 / 1060
页数:5
相关论文
共 35 条
[1]   From monomer zinc-oxamato complexes to tetranuclear inverse 12-membered and octanuclear 12-membered metallacrowns [J].
Alexiou, M ;
Dendrinou-Samara, C ;
Raptopoulou, CP ;
Terzis, A ;
Kessissoglou, DP .
INORGANIC CHEMISTRY, 2002, 41 (18) :4732-4738
[2]   Ferromagnetic interactions in the first dicubane-type complex involving cyanate ligand:: [Co4(dpk-OH)2(dpk-OMe)2(NCO)4] [J].
Barandika, MG ;
Serna, Z ;
Cortés, R ;
Lezama, L ;
Urtiaga, MK ;
Arriortua, MI ;
Rojo, T .
CHEMICAL COMMUNICATIONS, 2001, (01) :45-46
[3]   Single-molecule magnets:: A new family of Mn12 clusters of formula [Mn12O8X4(O2CPh)8L6] [J].
Boskovic, C ;
Brechin, EK ;
Streib, WE ;
Folting, K ;
Bollinger, JC ;
Hendrickson, DN ;
Christou, G .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (14) :3725-3736
[4]   A new class of single-molecule magnets:: mixed-valent [Mn4(O2CMe)2(Hpdm)6][ClO4]2 with an S=8 ground state [J].
Brechin, EK ;
Yoo, J ;
Nakano, M ;
Huffman, JC ;
Hendrickson, DN ;
Christou, G .
CHEMICAL COMMUNICATIONS, 1999, (09) :783-784
[5]   BOND-VALENCE PARAMETERS OBTAINED FROM A SYSTEMATIC ANALYSIS OF THE INORGANIC CRYSTAL-STRUCTURE DATABASE [J].
BROWN, ID ;
ALTERMATT, D .
ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1985, 41 (AUG) :244-247
[6]   Single-molecule magnets [J].
Christou, George ;
Gatteschi, Dante ;
Hendrickson, David N. ;
Sessoli, Roberta .
MRS Bulletin, 2000, 25 (11) :66-71
[7]   Inter-ligand reactions:: in situ formation of new polydentate ligands [J].
Coxall, RA ;
Harris, SG ;
Henderson, DK ;
Parsons, S ;
Tasker, PA ;
Winpenny, REP .
JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 2000, (14) :2349-2356
[8]  
GATTESCHI D, 1993, GAZZ CHIM ITAL, V123, P231
[9]   Single-molecule magnets based on iron(III) oxo clusters [J].
Gatteschi, D ;
Sessoli, R ;
Cornia, A .
CHEMICAL COMMUNICATIONS, 2000, (09) :725-732
[10]   Quantum tunneling of magnetization and related phenomena in molecular materials [J].
Gatteschi, D ;
Sessoli, R .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2003, 42 (03) :268-297