Experimental and theoretical study of the influence of peripheral environment on magnetic properties of tetranuclear manganese skeleton in new representatives of calix[4]arene-containing [Mn2II Mn2III] clusters

被引：9
|
作者：
Aldoshin, S. M. [1 ]
Antipin, I. S. [2 ]
Solov'eva, S. E. [2 ]
Sanina, N. A. [1 ]
Korchagin, D. V. [1 ]
Shilov, G. V. [1 ]
Mushenok, F. B. [1 ]
Utenyshev, A. N. [1 ]
Bozhenko, K. V. [1 ]
机构：
[1] Russian Acad Sci, Inst Problems Chem Phys, Chernogolovka 142432, Moscow Region, Russia
[2] Russian Acad Sci, Kazan Sci Ctr, AE Arbuzov Inst Organ & Phys Chem, Kazan 420088, Tatarstan Repub, Russia
来源：
JOURNAL OF MOLECULAR STRUCTURE | 2015年 / 1081卷
关键词：
Polynuclear complexes of manganese; Molecular magnets; Calix[4]arenes; X-ray analysis; SQUID magnetometry; Quantum-chemical calculations; TRANSITION-METAL-COMPLEXES; EXCHANGE; FAMILY;
D O I：
10.1016/j.molstruc.2014.10.022
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：
A new representative of calix[4]arene-containing tetranuclear manganese complexes of [(Mn2Mn2II)-Mn-III] type with 2,2'-dipyridyl bidentate ligand coordinated in the equatorial plane of the complex (II) has been obtained. The complex is crystallized in monoclinic space group P2(1)/c (a = 14.9402(7) angstrom, b = 32.816(1) angstrom, c = 21.595(1) angstrom, beta = 106.888(4)). Its magnetic properties have been studied by the method of SQUID magnetometry. The substitution of a peripheral ligand was shown to influence substantially on the structure of the central fragment of the metal complex, and, hence, on the magnetic properties. Quantum-chemical calculations were performed for this complex and for the similar calix[4]arene-containing manganese complex with pyridine ligand (I). The influence of peripheral environment on the magnetic properties of tetranuclear manganese skeleton was elucidated for both complexes. (C) 2014 Elsevier B.V. All rights reserved.
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页码：217 / 223
页数：7
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