Divalent metal sulfoisophthalate coordination polymers with isomeric pyridylnicotinamide coligands

作者：Kraft Peter E; Mizzi Jessica E; LaDuca Robert L^*

来源：Inorganica Chimica Acta, 2014, 409: 449-457.

DOI：10.1016/j.ica.2013.10.003

• Coordination polymer
• Crystal structure
• Luminescence
• Sulfoisophthalate
• Pyridylnicotinamide

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 4(2)6(3)8 topology, revealing a novel 5-connected 4(3)6(6)8 self-penetrated network if hydrogen bonding mediated by the protonated H4-pna pyridyl rings is taken into account. {[Cd-3(3-pna)(2)(sip)(2)(H2O)(6)]center dot 2H(2)O}(n) (3, 3-pna = 3-pyridylnicotinamide) manifests a previously unreported binodal 3,4-connected (6(2)8(4))(6(2)8)(4) layer topology. Its zinc analog {[Zn(H3-pna)(sip)]center dot 1.5H(2)O}(n) (4) exhibits a 3-connected 1D ladder structure. Luminescent and thermal degradation properties of these materials are also reported.

• 出版日期2014-1-1