一例混合配体构筑的钴(Ⅱ)一维配位聚合物的合成、晶体结构与磁性质

基于萘膦酸羧酸酯配体和氯化钴在水热条件下自组装得到配位聚合物[Co(5-pncee)(4,4'-bpy)(H2O)3(5-pnceeH2)]·2H2O(1)(5-pncee H2=5-phosphono-naphthalene-1-carboxylic acid ethyl ester,4,4'-bpy=4,4'-bi...

Synthesis,Crystal Structure and Magnetic Properties of 1D Cobalt Naphthalene Phosphonate Carboxylate Complex

Self-assembly of naphthalene phosphonate carboxylate ligand and cobalt(Ⅱ) chloride hexahydrate, 1D coordination polymer, namely [Co(5-pncee)(4,4′-bpy)(H₂O)₃(5-pnceeH₂)]·2H₂O(1) (5-pnceeH₂=5-phosphono -naphthalene-1-carboxylic acid ethyl ester, 4,4′-bpy=4,4′-bipyridinyl) was hydrothermally synthesized and characterized by single-crystal X-ray diffraction, EA, FT-IR spectroscopy, powder X-ray diffraction (PXRD), and thermogravimetric analysis (TG-DTG). Structure analyses reveal that compound 1 crystallized in the triclinic system, space group of P1, a=0.824 06(6) nm,b=1.014 48(9) nm, c=1.151 44(8) nm. It shows a linear chain structure. The neighboring chains are connected by moderately strong hydrogen bonds forming a supramolecular layer. The interlayer spaces are filled with the organic groups of the phosphonate ligands. Magnetic properties were investigated for compound 1, it is found that there is spin orbit coupling and/or antiferromagnetic interaction between Co(II) ions.