Hydrogen-bonded 2D network structure and abrupt spin transition with thermal hysteresis of iron(III) complexes [FeIII(Him)2(3-MeOsalen)]・H2O・EtOH・X (Him = imidazole, 3-MeOsalen = N,N'-bis(3-methoxysalicylidene)ethylenediaminato, and X = PF6, AsF6, SbF6)
Hydrogen-bonded 2D network structure and abrupt spin transition with thermal hysteresis of iron(III) complexes [FeIII(Him)2(3-MeOsalen)]・H2O・EtOH・X (Him = imidazole, 3-MeOsalen = N,N'-bis(3-methoxysalicylidene)ethylenediaminato, and X = PF6, AsF6, SbF6)
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铁(III)配合物的氢键二维网络结构和具有热滞后的突然自旋跃迁[FeIII(Him)2(3-MeOsalen)]·H2O·EtOH·X（Him = 咪唑，3-MeOsalen = N,N -双(3-甲氧基水杨基)乙二胺基，X = PF6、AsF6、SbF6)
DOI：
10.1016/j.ica.2015.01.047
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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：
Keita Hanahara;Hiromasa Ono;Takeshi Fujinami;Naohide Matsumoto;Yukinari Sunatsuki
在乙醇中合成了表现出热滞现象的自旋交叉 (SCO) 铁 (III) 配合物 [FeIII(Him)2(3-MeOsalen)]·H2O·EtOH·X（Him = 咪唑，3-MeOsalen = N,N'-双（3-甲氧基水杨基）乙二胺，X = PF6、AsF6、SbF6）。 FeIIIion 具有八面体配位几何形状，其中平面四齿配体 (3-MeOsalen) 的 N2O2 供体原子和两个咪唑的两个氮原子位于轴向位置。通过 H2O 和 EtOH，络合物阳离子组装成氢键二维网络结构，阴离子 X 容纳在二维网络的空隙中。磁化率的温度依赖性揭示了 PF6 和 AsF6 盐的突然和两步自旋转变以及热滞后。
Spin crossover (SCO) iron(III) complexes exhibiting thermal hysteresis, [FeIII(Him)2(3-MeOsalen)]·H2O·EtOH·X (Him = imidazole, 3-MeOsalen =N,N′-bis(3-methoxysalicylidene)ethylenediaminato, and X = PF6, AsF6, SbF6), were synthesized in ethanol. The FeIIIion has an octahedral coordination geometry with N2O2donor atoms of the planar tetradentate ligand (3-MeOsalen) and two nitrogen atoms of two imidazoles at the axial positions. Through H2O and EtOH the complex-cations are assembled into a hydrogen-bonded 2D network structure and the anion X is accommodated in the void of the 2D network. The temperature dependences of the magnetic susceptibilities revealed an abrupt and two-step spin transition with thermal hysteresis for the PF6and AsF6salts.