325776-81-6Relevant articles and documents
Nitrobenzene-detection cadmium thiophenedicarboxylate coordination polymers with flexible dipyridylamide ligands and diverse topologies
Przybyla, Jack J.,LaDuca, Robert L.
, p. 314 - 323 (2019)
Hydrothermal reaction of cadmium nitrate, 2,5-thiophenedicarboxylic acid (H2tdc) and one of the conformationally flexible dipyridylamide ligands N,N′-(heptane-1,7-diyl)dinicotinamide (hedn), N,N′-(hexane-1,6-diyl)diisonicotinamide (hdin), N,N′-(hexane-1,6-diyl)dinicotinamide (hdn), N,N′-(propane-1,3-diyl)dinicotinamide (pdn), N,N′-(propane-1,3-diyl)diisonicotinamide (pdin) produced five new coordination polymers which were structurally characterized by single-crystal X-ray diffraction. {[Cd(tdc)(hedn)(H2O)]·3H2O}n (1) manifests looped (4,4) grid motifs with two-fold parallel interpenetration. {[Cd(tdc)(hdin)(H2O)]·H2O}n (2) shows stacked (4,4) grid motifs. {[Cd2(tdc)2(hdn)(H2O)4]·H2O}n (3) exhibits herringbone (6,3) grid motifs. In contrast to the 2D topologies seen in 1–3, {[Cd2(tdc)2(pdn)(H2O)2]·4H2O}n (4) displays a 3D self-penetrated net with 6482 nbo topology and [Cd(tdc)(pdin)]n (5) shows a 1D ribbon structure constructed from staple-conformation pdin ligands and {Cd2O2} dimer-containing [Cd(tdc)]n chains. Thermal decomposition and nitrobenzene detection properties of these five new materials are discussed.
Auxiliary dipyridylamide ligand control of dimensionality in copper 5-sulfoisophthalate coordination polymers
Meyers, Abigail E.,LaDuca, Robert L.
, p. 595 - 607 (2018)
Hydrothermal reaction of copper nitrate, sodium 5-sulfoisophthalate (sip), and a long-spanning hydrogen-bonding capable dipyridylamide ligand afforded four coordination polymers whose dimensionality depends critically on the dipyridylamide tether length. The four new phases were structurally characterized via single-crystal X-ray diffraction. {[Cu8(sip)4(pbn)3(nic)(μ3-OH)2(μ2-OH)(μ2-H2O)(H2O)4]·5H2O}n (1, pbn = 1,3-propanediaminebis(nicotinamide), nic = nicotinate) manifests an intriguing 2D slab structure featuring trimeric copper clusters containing bridging hydroxide ions and water molecules along with substantial crystallographic disorder. {[Cu3(sip)2(pbin)4(H2O)4]·14H2O}n (2, pbin = 1,3-propanediaminebis(isonicotinamide)) shows 1D chain motifs with curled conformation dipyridylamide ligands. {[Cu4(μ3-OH)2(sip)2(hbin)]·2H2O}n (3, hbin = 1,6-hexanediaminebis(isonicotinamide)) features [Cu4(μ-OH)2(sip)2] butterfly clusters connected into a 3D 3,8-connected network with (4.62)2(426187484) topology. {[Cu(Hsip)(hbn)(H2O)]·2H2O}n (4, hbn = 1,6-hexanediaminebis(nicotinamide)) exhibits a sawtooth (4,4) grid topology. Variable temperature magnetic susceptibility studies on 1 and 3 revealed antiferromagnetic behavior (g = 2.079(6), J = ?5.7(2) cm?1 for 1, g = 2.14(2), J1 = ?19(1) cm?1, J2 = ?35(2) cm?1 for 3). Thermal decomposition behavior of 1–4 is also discussed.
Zinc and Cadmium Diphenate Coordination Polymers with Conformationally Flexible Dipyridylamide Ligands
Martinez, Brianna L.,LaDuca, Robert L.
, p. 1118 - 1125 (2017/09/25)
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.
