Exchange Interaction in a Dinuclear Iron(III) Complex of a Heptadentate Schiff Base: Synthesis, Crystal Structure and Magnetic Properties
作者:C. T. Zeyrek、A. Elmali、Y. Elerman
DOI:10.1515/znb-2005-0705
日期:2005.7.1
and magnetic properties of the new dinuclear iron(III) complex Fe2L(OCH3)Cl2 (L=1,3-bis[N-(3,5-dichloro-2-hydroxybenzylidene)-2-aminoethyl]-2-(3,5- dichlo ro-2-hydroxyphenyl)imidazolidine) are reported. The structure consists of dinuclear units. The two iron(III) atoms are asymmetrically bridged by a phenoxo and a methoxo group. The iron(III) centers are separated by 3.133(2) Å . The Magnetic susceptibility
新型双核铁 (III) 配合物 Fe2L(OCH3)Cl2 (L=1,3-bis[N-(3,5-dichloro-2-hydroxybenzylidene)-2-aminoethyl]-2 的合成、晶体学表征和磁性能-(3,5-二氯-2-羟基苯基)咪唑烷)被报道。该结构由双核单元组成。两个铁 (III) 原子由苯氧基和甲氧基不对称桥接。铁 (III) 中心相距 3.133(2) Å。在 5 - 298 K 范围内测量了复合物的磁化率,并且通过基于自旋哈密尔顿算子 H = −JS⃗1.S⃗2 的方程成功模拟了观察到的数据。磁化率测量表明铁离子之间的反铁磁耦合非常弱,J = -10.8 cm-1 和 g = 2.0。