2,6-Bis(pyrazol-1-yl)pyridine-4-carboxylate Esters with Alkyl Chain Substituents and Their Iron(II) Complexes
作者:Iurii Galadzhun、Rafal Kulmaczewski、Oscar Cespedes、Mihoko Yamada、Nobuto Yoshinari、Takumi Konno、Malcolm A. Halcrow
DOI:10.1021/acs.inorgchem.8b02289
日期:2018.11.5
iron(II), where R = CnH2n+1 (n = 6, 12, 14, 16, 18); two other derivatives related to L3R are also reported. While the solid [Fe(L4R)2][BF4]2 compounds are isostructural by powder diffraction and show similar spin state behaviors, the [Fe(L3R)2][BF4]2 series shows more varied structures and magnetic properties. This was confirmed by solvated crystal structures of [Fe(L3R)2][BF4]2 with n = 6, 14, 16, which
两个系列的4-(烷氧基苯基)2,6-双吡唑-1-基}吡啶-4-羧酸酯(L 3 R)或2,6-双吡唑-1-基}吡啶-4-羧酸烷基酯(已合成了L 4 R)酯并与铁(II)络合,其中R = C n H 2 n +1(n = 6、12、14、16、18);还报道了与L 3 R有关的另外两种衍生物。固体[Fe(L 4 R)2 ] [BF 4 ] 2化合物通过粉末衍射是同构的,并且显示出相似的自旋态行为,而[Fe(L 3 R)2 ] [BF 4 ] 2系列显示出更多不同的结构和磁性能。这通过的[Fe(L的溶剂化的晶体结构确认3 R)2 ] [BF 4 ] 2与Ñ = 6,14,16,其全部采用P 1空间群,但显示显著不同侧链构象和/或水晶包装。固体配合物在室温下大多数是低自旋的,许多在加热时表现出热自旋交叉(SCO)的开始。用n加热络合物高于其SCO温度≥14会使它们不可逆转地转变为主要的自旋状态