Spin Crossover in a Series of Iron(II) Complexes of 2-(2-Alkyl-2<i>H</i>-tetrazol-5-yl)-1,10-phenanthroline: Effects of Alkyl Side Chain, Solvent, and Anion
作者:Wen Zhang、Fei Zhao、Tao Liu、Mei Yuan、Zhe-Ming Wang、Song Gao
DOI:10.1021/ic062062h
日期:2007.4.1
ring, and their iron(II) complexes (a for [Fe(L0)2], na for [Fe(Ln)2](ClO4)2, and nb for [Fe(Ln)2](BF4)2) were synthesized and characterized. The crystal structures of a, a.CH3OH, 1a.CH3OH, 1b.CH3OH.CH3CN, 2a.H2O, 2b.H2O, 4b.CH3OH, 5a.H2O, 5b.H2O, 6a, 6b, 7a, 7b, and 16a are described, along with thermal analyses. a undergoes an abrupt spin crossover (SCO) at 255 K with a hysteresis loop of 6 K. a.CH3OH
2-(2H-噻唑-5-基)-1,10-菲咯啉(HL0),其烷基取代的衍生物(Ln,其中n = 1-8、10、12、14和16,表示碳原子数四唑环2H位置的烷基链的烷基)及其铁(II)配合物([Fe(L0)2]为a,[Fe(Ln)2](ClO4)2为na,[b]为nb)合成并表征了Fe(Ln)2](BF4)2)。a,a.CH3OH,1a.CH3OH,1b.CH3OH.CH3CN,2a.H2O,2b.H2O,4b.CH3OH,5a.H2O,5b.H2O,6a,6b,7a,7b和16a的晶体结构描述,以及热分析。a在255 K下经历一个6 K的磁滞回线的突然自旋交叉(SCO)。a.CH3OH,2a.H2O和2b.H2O由于加热时溶剂分子的损失而表现出不可逆的SCO行为。图3a,3b,4a和5a.H2O显示了在350 K以上的简单自旋跃迁。4b.CH3OH和5b的去溶剂化样品。H2O经历两步自旋转变。图16a展示了一个介于100