Copper Carboxylate-phosphonates:Syntheses,Crystal Structures and Magnetic Properties

• 作者: XU Yan
• 来源期刊: 结构化学
• 年，卷（期）: 2021,（8）
• 所属期刊栏目: coordination chemistry
• 页码范围: 1061-1067
• 页数: 7页
• 语种: 英文
• DOI: 10.14102/j.cnki.0254-5861.2011-3085

摘要

Two novel copper carboxyly-phosphonates,namely,Cu2.5(5-pnc)(SO4)0.5(OH)(H2O)0.5(1)and Cu0.5(5-pncH2)(H2O)1.5(2)(5-pncH3 = 5-phosphono-l-naphthalenecarboxylic acid),have been synthesized and characterized by X-ray diffraction,infrared spectroscopy,elemental analysis,and thermogravimetric analysis.In compound 1,each{PO3C}tetrahedron is corner-shared with two{Cu(1)O4},two{Cu(2)O5}and one{Cu(3)O5},thus forming a one-dimensional inorganic chain along the c axis containing 8-membered rings of[Cu3O4S]and 19-membered cages of[Cu5O10P4].The inorganic chains are further connected by a 5-pnc3-ligand to generate a three-dimensional framework.Compound 2 exhibits a one-dimensional structure,in which the inorganic chains of[Cu-O-Cu]n are connected by the organic ligands through hydrogen bonding interactions,forming an infinite two-dimensional layer.Magnetic measurements of 1 indicate that dominant antiferromagnetic interactions are mediated between the Cu2+centers.