The First 1,3,4‐Oxadiazole Based Dinuclear Iron(II) Complexes Showing Spin Crossover Behavior with Hysteresis
作者:Christian Köhler、Eva Rentschler
DOI:10.1002/ejic.201501278
日期:2016.5
Three new dinuclear complexes [FeII2(μ-L)2]X4 (L is the bis-tridentate ligand 2,5-bis[(2-pyridylmethyl)amino]methyl}-1,3,4-oxadiazole and X = ClO4–, BF4– and CF3SO3–) have been synthesized and fully characterized by single-crystal X-ray diffraction, Mossbauer spectroscopy and magnetic susceptibility measurements. Upon cooling, a trapped [high-spin–low-spin] state of the iron(II) centres is detected
三个新的双核配合物 [FeII2(μ-L)2]X4(L 是双三齿配体 2,5-bis[(2-pyridylmethyl)amino]methyl}-1,3,4-oxadiazole and X = ClO4 –、BF4– 和 CF3SO3–) 已经合成并通过单晶 X 射线衍射、穆斯堡尔光谱和磁化率测量进行了充分表征。冷却后,检测到铁(II)中心的被困[高自旋-低自旋]状态。根据反离子,发现明显的热滞后。在一种情况下,可以观察到伴随自旋跃迁的空间群变化。这是第一个显示基于恶二唑配体的自旋交叉的系统。