Magnetic properties and crystal structure of a dinuclear iron(III) complex

被引：0
|
作者：
Elmali, A [1 ]
Elerman, Y
Svoboda, I
机构：
[1] Ankara Univ, Fac Sci, Dept Engn Phys, TR-06100 Ankara, Turkey
[2] Tech Univ Darmstadt, Struct Res Div, Dept Mat Sci, D-64287 Darmstadt, Germany
来源：
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES | 2001年 / 56卷 / 09期
关键词：
binuclear iron(III) complex; super-exchange interactions; antiferromagnetic coupling;
D O I：
暂无
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
[FeL(MeOH)Cl](2) (L = N-(5-methylphenyl)-3-methoxysalicylaldimine) was synthesized and its crystal structure determined, [C30H26Cl2Fe2N2O6], triclinic, space group P (1) over bar a = 7.481(2), b = 9.436(2), c = 10.961(2) Angstrom, alpha = 69.790(10), beta = 82.440(10), gamma = 83.690(10)degrees, V= 718.1(3) Angstrom (3), Z = 1. Two identical [FeLCl] fragments, related by an inversion centre, are connected by two bridging O atoms to form a binuclear unit. The iron(III) centers are separated by 3.196(2) Angstrom and weakly antiferromagnetically coupled (J = -10.4(1) cm(-1)), which follows from temperature-dependent magnetic susceptibility measurements in the range 5.1 to 275.6 K. The magnetic moment at 275.6 K is ca. 7.02 B. M., but 0.99 B. M. at 5.1 K. The magnetic susceptibility is at a maximum near 80 K and decreases rapidly as the temperature is lowered to liquid helium temperature.
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收藏
页码：897 / 900
页数：4
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