Syntheses, Structures and Properties of Three Novel La(Ⅲ)/Co(Ⅱ) Coordination Polymers Based on 5-(3-(Tetrazo-5-yl)phenyl)isophthalic Acid

【摘要】 Three novel complexes, namely {[La（tapipa）（4,4′-bibp）·（H₂O）₂]·H₂O}n（1）, {[La-（tapipa）（H₂O）₄（OH）]·3 H₂O}n（2）, [Co（tapipa）（1,4-bbib）]n（3）（tapipa = 5-（3-（tetrazo-5-yl）phenyl）isophthalic acid, 4,4′-bibp = 4,4′-bis（imidazolyl）biphenyl, and 1,4-bbib = 1,4-bis（benzimidazo-1-ly）benzene） have been synthesized under solvothermal conditions and characterized by PXRD, IR,TGA, and so on. Complex 1 presents a 2 D layer structure, which is finally packed into a 3 D supramolecular structure by means of hydrogen bonds; complexes 2 and 3 exhibit 1 D chains and 2 D wavy-type structures, respectively, which are expanded into 3 D supramolecular structures through hydrogen bonds and π-π interactions. Furthermore, the luminescence properties of complex 1 and the variable-temperature magnetic susceptibilities of 3 were investigated. Complex 1 has highly selective sensing for Fe³⁺ and Cr₂O₇^2- ions.更多还原

【Abstract】 Three novel complexes, namely {[La（tapipa）（4,4′-bibp）·（H₂O）₂]·H₂O}n（1）, {[La-（tapipa）（H₂O）₄（OH）]·3 H₂O}n（2）, [Co（tapipa）（1,4-bbib）]n（3）（tapipa = 5-（3-（tetrazo-5-yl）phenyl）isophthalic acid, 4,4′-bibp = 4,4′-bis（imidazolyl）biphenyl, and 1,4-bbib = 1,4-bis（benzimidazo-1-ly）benzene） have been synthesized under solvothermal conditions and characterized by PXRD, IR,TGA, and so on. Complex 1 presents a 2 D layer structure, which is finally packed into a 3 D supramolecular structure by means of hydrogen bonds; complexes 2 and 3 exhibit 1 D chains and 2 D wavy-type structures, respectively, which are expanded into 3 D supramolecular structures through hydrogen bonds and π-π interactions. Furthermore, the luminescence properties of complex 1 and the variable-temperature magnetic susceptibilities of 3 were investigated. Complex 1 has highly selective sensing for Fe³⁺ and Cr₂O₇^2- ions.更多还原