DFT description of the magnetic structure of polynuclear transition-metal clusters

被引:61
作者
Bencini, A [1 ]
Totti, F [1 ]
机构
[1] Polo Sci Univ Firenze, Dipartimento Chim, Florence, Italy
关键词
density functional calculations; magnetic properties; trinuclear complexes; tetranuclear complexes;
D O I
10.1002/qua.20342
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Broken symmetry B3LYP-DFT calculations on three- and four-spin systems, namely the complexes [{Cu(bpca)(2)(H2O)(2)}{Cu(NO3)(2)}(2)], (bpca = Bis(2-pyridylcarbonyl)amine), 1, and [Cu(DBSQ)(C2H5O)](2), (DBSQ = 3,5-di-tert-butyl-semiquinonato), 2, have been performed. A procedure to compute the exchange coupling constants through the use of a complete set of broken symmetry determinants is suggested. (C) 2004 Wiley Periodicals, Inc.
引用
收藏
页码:819 / 825
页数:7
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