3d-4f coordination compounds of water-soluble sulfonylcalix[4]arenetetrasulfonate in cone conformation

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• 作者：Xiaofei Zhu^a ; ^b ; Wuping Liao^b ; ^{wpliao@ciac.ac.cn" class="auth_mail" title="E-mail the corresponding author}
• 关键词：3d-4f compounds ; Sulfonylcalix[4]arenetetrasulfonate ; Conformation ; Magnetic property ; Calixarenes
• 刊名：Polyhedron
• 出版年：2016
• 出版时间：17 June 2016
• 年：2016
• 卷：111
• 期：Complete
• 页码：185-189
• 全文大小：1516 K

文摘

Two isostructural 3d-4f compounds with the common formula [Ln₂Ni₂(SC4AS)₂(H₂O)₆(phen)₄]·[Ni(phen)₃]₂·[Ni(H₂O)₆]·8H₂O (Ln = Er (CIAC-216) and Nd (CIAC-217); H₄SC4AS = sulfonylcalix[4]arenetetrasulfonate; phen = 1,10-phenanthroline) were synthesized under hydrothermal conditions and characterized by elemental analyses, IR spectroscopy and thermogravimetric analysis. Single-crystal X-ray diffraction analysis reveals these two compounds exhibit three-dimensional (3D) supramolecular structures in which the heterometallic [Ln₂Ni₂(SC4AS)₂(H₂O)₆(phen)₄]⁶⁻ units are linked together through π⋯π interactions between phen ligands into a 1D supramolecular chain and further interconnected through hydrogen bonds with [Ni(H₂O)₆]²⁺ cations. The calixarene conformation and magnetic properties of both compounds were also discussed.