Investigation of two 2D interpenetration iron(II) coordination polymers

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• 作者：Yang-Hui Luo ; Dong-Er Qian ; Ya-Wen Zhang ; Ye-Hao Jiang ; Hong-Shuai Wu ; Bai-Wang Sun ; ^{chmsunbw@seu.edu.cn" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Iron(II) polymers ; Spin-crossover ; Two-dimensional ; 2-Fold interpenetration ; Framework
• 刊名：Polyhedron
• 出版年：2016
• 出版时间：28 May 2016
• 年：2016
• 卷：110
• 期：Complete
• 页码：241-246
• 全文大小：1533 K

文摘

Two iso-structural two-dimensional (2D) porous coordination polymers, which formulated as [Fe(1,3-di(4-pyridyl)propane)₂(NCX)₂]₂ (X = S [1], Se [2]) and featured 2-fold interpenetration, have been synthesised and characterized. Crystal structure, Hirshfeld surfaces analysis and magnetic properties of them were described. The basic-unit of 1 and 2 was the 2D rhombic grids [2 × (4, 4)] network, and the intermolecular interactions in the crystals were dominated by C–H…π, H–H and C–H…S (Se) contacts. The stronger ligand field strength of SeCN⁻ than that of SCN⁻ resulted to different magnetic properties: compound 1 shows paramagnetic property while 2 display displays an incomplete SCO transition approximately 30% conversion of high-spin (HS) to low-spin iron(II) sites with transition temperature of 100 K.