State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China.
Dalton Trans. 2010 Mar 7;39(9):2288-92. doi: 10.1039/b917518k. Epub 2010 Jan 14.
A one-dimensional iron(II) spin-crossover compound [Fe(3py-im)(2)(NCS)(2)].7H(2)O (1) (3py-im = 2,4,5-tris(4-pyridly)-imidazole) has been solvothermally synthesized and structurally characterized. Compound 1 crystallizes in the monoclinic space group P2/c with a = 11.9078(2), b = 9.9474(1), c = 17.7290(3) and beta = 102.361(2) degrees at 105 K. Studies on the variable-temperature magnetic susceptibilities and Mössbauer spectra suggest that compound undergoes incomplete spin transition behaviour. Pressure effects on the transition behaviour have also been investigated, the thermal-induced spin transition becomes more gradual and the critical temperature shifts towards slightly higher temperature range when external pressure increases. However, the spin transition can not be completed by applying external pressure even as high as 0.79 GPa.
一种一维铁(II)自旋交叉配合物[Fe(3py-im)(2)(NCS)(2)].7H(2)O(1)(3py-im=2,4,5-三(4-吡啶基)-咪唑)已通过溶剂热合成法合成并进行了结构表征。化合物 1 在 105 K 下结晶于单斜空间群 P2/c，晶胞参数为 a = 11.9078(2)，b = 9.9474(1)，c = 17.7290(3)，β= 102.361(2)°。变温磁化率和穆斯堡尔谱研究表明，化合物表现出不完全的自旋转变行为。还研究了压力对转变行为的影响，当外部压力增加时，热诱导的自旋转变变得更加渐进，而临界温度向稍高的温度范围移动。然而，即使施加高达 0.79 GPa 的外部压力，也不能完成自旋转变。
