Divalent metal sulfoisophthalate coordination polymers with isomeric pyridylnicotinamide coligands

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• 作者：Peter E. Kraft ; Jessica E. Mizzi ; Robert L. LaDuca
• 关键词：Coordination polymer ; Crystal structure ; Luminescence ; Sulfoisophthalate ; Pyridylnicotinamide
• 刊名：Inorganica Chimica Acta
• 出版年：1 January, 2014
• 年：2014
• 卷：409
• 期：part_PB
• 页码：449-457
• 全文大小：3716 K

文摘

Four new divalent metal 5-sulfoisophthalate (sip) coordination polymers with ancillary isomeric pyridylnicotinamide ligands have been prepared by hydrothermal methods and structurally characterized. [Cu(H4-pna)(sip)(H₂O)]_n (1, 4-pna = 4-pyridylnicotinamide) has a simple 1D chain structure. In contrast its cadmium analog [Cd(H4-pna)(sip)]_n (2) possesses a 3D sra 4²6³8 topology, revealing a novel 5-connected 4³6⁶8 self-penetrated network if hydrogen bonding mediated by the protonated H4-pna pyridyl rings is taken into account. {[Cd₃(3-pna)₂(sip)₂(H₂O)₆]路2H₂O}_n (3, 3-pna = 3-pyridylnicotinamide) manifests a previously unreported binodal 3,4-connected (6²8⁴)(6²8)₄ layer topology. Its zinc analog {[Zn(H3-pna)(sip)]路1.5H₂O}_n (4) exhibits a 3-connected 1D ladder structure. Luminescent and thermal degradation properties of these materials are also reported.