Syntheses, hydrogen-bonded assembly structures, and spin crossover properties of [FeIII(Him)2(n-MeOhapen)]PF6 (Him = imidazole and n-MeOhapen = N,N'-bis(n-methoxy-2-oxyacetophenylidene)ethylenediamine); n = 4, 5, 6)
Syntheses, hydrogen-bonded assembly structures, and spin crossover properties of [FeIII(Him)2(n-MeOhapen)]PF6 (Him = imidazole and n-MeOhapen = N,N'-bis(n-methoxy-2-oxyacetophenylidene)ethylenediamine); n = 4, 5, 6)
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[FeIII(Him)2(n-MeOhapen)]PF6 的合成、氢键组装结构和自旋交叉特性（Him = 咪唑和 n-MeOhapen = N,N-双（n-甲氧基-2-氧基乙酰亚苯基）
DOI：
10.1016/j.ica.2015.03.034
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发表时间：
2015
影响因子：
2.8
通讯作者：
Yukinari Sunatsuki
中科院分区：
文献类型：
--
作者：
Takeshi Fujinami;Mizuki Ikeda;Masataka Koike;Naohide Matsumoto;Tomohiro Oishi;Yukinari Sunatsuki
合成了三个铁（III）配合物[FeIII(Him)2(n- meohapen)]PF6(1:n= 4,2:n= 5,3:n= 6)，其中Him =咪唑和n- meohapen = n, n ' -双（n-甲氧基-2-氧苯乙二胺）乙二胺。每个离子都是由赤道态n-MeOhapen和两轴态Him的n4o_2供体原子配位的。含有乙二胺部分的饱和fec2n2螯合环呈间旋构象，[FeIII(Him)2(n-MeOhapen)]+的两个苯基面与feo2n2配位面取向相反。两个相邻的[FeIII(Him)2(4-MeOhapen)]+离子通过咪唑基团和PF6−之间的氢键通过PF6−离子连接成一维链。两个相邻的阳离子in2通过苯基氧和咪唑原子之间的氢键连接，形成环状二聚体结构。两个EtOH分子参与了一个氢键环二聚体结构。化合物1和2表现出自旋交叉行为，而化合物3表现出不完全自旋交叉行为。
Three iron(III) complexes, [FeIII(Him)2(n-MeOhapen)]PF6(1:n= 4,2:n= 5,3:n= 6), where Him = imidazole and n-MeOhapen =N,N′-bis(n-methoxy-2-oxyacetophenylidene)ethylenediamine, were synthesized. Each FeIIIion was coordinated by N4O2donor atoms of equatorial n-MeOhapen and two axial Him. The saturated FeC2N2chelate ring involving the ethylenediamine moiety adopted a gauche conformation and the two phenylidene planes of [FeIII(Him)2(n-MeOhapen)]+were oriented opposite to the FeO2N2coordination plane. Two adjacent [FeIII(Him)2(4-MeOhapen)]+cations in1were connected via PF6−ions by hydrogen bonds between the imidazole group and PF6−to give a one-dimensional chain. Two adjacent cations in2were connected via hydrogen bonds between the phenylidene oxygen and imidazole atoms to form a cyclic dimer structure. Two EtOH molecules were involved in a hydrogen-bonded cyclic dimer structure in3. Compounds1and2showed spin crossover behavior, but3showed incomplete spin crossover.