Zinc and Cadmium Diphenate Coordination Polymers with Conformationally Flexible Dipyridylamide Ligands

Abstract

Zinc and cadmium diphenate (dip, biphenyl‐2,2′‐dicarboxylate) coordination polymers containing conformationally flexible dipyridylamide ligands show diverse chain and layer topologies as determined by single‐crystal X‐ray diffraction. [Cd(dipH)2(bdin)]n (1) [bdin = N,N′‐(butane‐1,3‐diyl)diisonicotinamide] shows a simple 1D zigzag chain structure. {[Cd(dip)(pdin)(H2O)]·1.25H2O}n (2) [pdin = N,N′‐(propane‐1,3‐diyl)diisonicotinamide] shows bilayer slabs formed by interleaving of (4,4) rectangular grid layers. {[Zn2(dip)2(3‐pna)2]·3H2O}n (3) (3‐pna = 3‐pyridylnicotinamide) manifests a rare 4‐connected 1D ribbon topology. {[Cd(dip)(4‐ppbp)]·2H2O}n (4) [4‐ppbp = propane‐1,3‐diylbis(piperidine‐4,1‐diyl)bis(pyridin‐4‐ylmethanone)] shows a 3,5‐connected layer with (426)(42678) 3,5L2 topology. {[Zn4(dip)4(H2O)2(4‐ppbp)2]·12H2O}n (5) exhibits 2D 3,6‐connected layers with (43)2(466683) kgd topology featuring embedded R(8)A(2) classification 10‐membered water clusters. Compounds 1, 4, and 5 undergo violet or blue‐violet fluorescence upon ultraviolet irradiation. Thermal decomposition behavior of the new phases is also discussed.

Synthesis, crystal structures and vapor adsorption properties of mercury(II) coordination polymers derived from two dipyridylamide ligands

“…[1][2][3][4][5][6] This intriguing class of materials have demonstrated multifunctional properties in diverse applications such as ion exchange, gas storage, molecular separation, photochemistry, heterogeneous catalysis for organic transformations, and more recently as possible sensors for the detection of explosive compounds. [7][8][9][10][11][12][13] The striking aesthetic appeal of their fascinating architectures and topologies of coordination polymers is also an undeniable impetus for continued investigation. So far, a variety of one-, two-or three-dimensional (1D to 3D) network topologies have been constructed and structurally characterized.…”

“…There has been continuing and increasing interest in the design, structural characterization, and properties measurements of coordination polymers (CPs) in the past few decades [1–6] . This intriguing class of materials have demonstrated multifunctional properties in diverse applications such as ion exchange, gas storage, molecular separation, photochemistry, heterogeneous catalysis for organic transformations, and more recently as possible sensors for the detection of explosive compounds [7–13] . The striking aesthetic appeal of their fascinating architectures and topologies of coordination polymers is also an undeniable impetus for continued investigation.…”

Syntheses, Characterization, and Fluorescence Properties of Four Coordination Polymers based on Double Betaine Ligands

“…Coordination polymers, formed by the infinite arrays of central metal atoms connected by multifunctional organic linkers, are continually drawing numerous attentions due to their versatile architectures based on diversified structural motifs, and their promising applications in plenty of areas, such as optical materials, molecular electronics, drug delivery, gas adsorption/ separation and catalysis. [1][2][3][4][5][6][7][8][9][10][11][12][13] During the past few decades, significant progress has been achieved in the aspects of structures and functions of coordination polymers, commonly known as one-, two-or three-dimensional networks. [14][15][16][17][18][19][20][21][22] Of those onedimensional (1D) coordination polymers with ubiquitous coordination array, their easy way to generate via self-assembly makes it easier to incorporate functional motifs into the backbones either at the central metal atoms or at the part of organic linkers, which is contributing to the development of the strategies for engineering multifunctional polymeric materials.…”

“…Coordination polymers, formed by the infinite arrays of central metal atoms connected by multifunctional organic linkers, are continually drawing numerous attentions due to their versatile architectures based on diversified structural motifs, and their promising applications in plenty of areas, such as optical materials, molecular electronics, drug delivery, gas adsorption/separation and catalysis . During the past few decades, significant progress has been achieved in the aspects of structures and functions of coordination polymers, commonly known as one‐, two‐ or three‐dimensional networks .…”