13160-06-0Relevant articles and documents
Synthesis and characterization of one, two and three-dimensional Cu(I) polymers supported by bipyridylamide ligands
Mugenzi, Clement,Powell, Douglas R.,Gerasimchuk, Nikolay N.,Yang, Lei
, p. 39 - 46 (2018)
Reaction of bipyridylamide ligands N-(3-pyridyl)nicotinamide (3-pna), N-(4-pyridyl)nicotinamide (4-pna) and N-(4-pyridyl)isonicotinamide (4-pina) with Cu(I) salts afforded four coordination polymers. X-ray crystallography analysis showed one-, two- and three-dimensional networks. The correlation between the pyridyl nitrogen donor disposition and dimensionality of the structures was discussed. Reflectance UV–Vis and fluorescence spectroscopic methods were used to characterize the MLCT features of these complexes. Thermal stability of the coordination polymers under nitrogen was also investigated.
Nickel adipate coordination polymers with isomeric dipyridylamide ligands: Topological disorder and divergent magnetic properties
White, Charmaine L.,La Duca, Robert L.
, p. 6789 - 6797 (2016)
Hydrothermal reaction of nickel nitrate, adipic acid, and a dipyridylamide ligand produced two coordination polymers which were structurally characterized by single-crystal X-ray diffraction. {[Ni2(adipate)2(3-pna)2(H2O)]·H2O}n (1, 3-pna = 3-pyridylnicotinamide) possesses carboxylate bridged {Ni(μ2-H2O)(OCO)2} dimeric units connected into (6,3) graphitic 2D layer motifs. Use of the isomeric 3-pyridylisonicotinamide (3-pina) afforded {[Ni2(adipate)2(3-pina)2(H2O)]·2H2O}n (2), which manifested similar {Ni(μ2-H2O)(OCO)2} dimeric units. Crystallographic disorder within the adipate ligands in 2 produced a 3D coordination polymer net that is a hybrid of a non-interpenetrated 3D 6-connected primitive cubic α-Po 41263pcu net and 2D 7-connected slab motifs with a pillared (3,6) triangular net 3641253 topology. Magnetic analysis for 1 revealed weak antiferromagnetic coupling (J = -0.36(1) cm-1 with g = 2.077(1)), while 2 exhibited weak ferromagnetic coupling (J = +0.51(2) cm-1 with g = 2.034(7)).
Luminescent cadmium 1,3-adamantanedicarboxylate coordination polymers with diverse topologies depending on dipyridylamide ligands
LaRose, Cassi J.,LaDuca, Robert L.
, p. 92 - 101 (2017)
Hydrothermal reaction of cadmium nitrate, 1,3-adamantanedicarboxylic acid (adcH2), and a hydrogen-bonding capable dipyridylamide ligand afforded five crystalline coordination polymers whose dimensionality depends on the dipyridylamide length and nitrogen donor disposition. The five new phases were structurally characterized via single-crystal X-ray diffraction. [Cd(adc)(4-pmina)]n(1, 4-pmina?=?4-pyridylmethylisonicotinamide) displays a (4,4) grid topology with [Cd(adc)]nchains pillared by the dipodal dipyridylamide ligands. {[Cd(adc)(4-pmna)(H2O)]·4H2O}n(2, 4-pmna?=?4-pyridylmethylnicotinamide) displays a similar layered topology, but with octameric water molecule clusters residing in the interlamellar regions. {[Cd(adc)(3-pna)(H2O)]·6H2O}n(3, 3-pna?=?3-pyridylnicotinamide) possesses 1-D ribbon submotifs due to the syn-conformation and shorter tether length of the dipyridylamide ligands. Compound 3 entrains intriguing “infinite” water molecule tapes comprised of 4- and 5-membered rings. {[Cd2(adc)2(3-pina)2]·H2O}n(4, 3-pina?=?3-pyridylisonicotinamide) manifests a 4-connected 3D 658?cds topology. The minor coordination polymer chain product {[Cd(adc)(3-pyram)2(H2O)]·2H2O}n(5) was isolated along with 4 (3-pyram?=?3-pyridylamine). Luminescent behavior in 1–4 is attributed to intra-ligand molecular orbital transitions. The new phases were also surveyed for the ability to detect nitrobenzene in ethanol suspension. Thermal decomposition behavior is also discussed herein.
Metal ion control of dimensionality and self-penetration in coordination polymers containing furandicarboxylate and dipyridylamide ligands
White, Charmaine L.,LaDuca, Robert L.
, p. 171 - 176 (2016)
Hydrothermal reaction of metal nitrates, 2,5-furandicarboxylic acid (H2fdc) and the conformationally flexible dipyridylamide ligand 3-pyridylnicotinamide (3-pna) afforded three new coordination polymers which were structurally characterized by single-crystal X-ray diffraction. {[Cd2(fdc)2(3-pna)(H2O)4]·6H2O}n(1) exhibits a 1D ladder structural motif with tethering anti-conformation 3-pna ligands acting as the rungs. {[Ni(fdc)(3-pna)2(H2O)]·2.5H2O}n(2) displays a (4,4) rhomboid grid structure that resembles a rarer (3,6) triangular grid if supramolecular interactions provided by pendant syn-conformation 3-pna ligands are considered. [Co(fdc)(3-pna)(H2O)]n(3) manifests {Co2(OCO)2} anti-syn dimer-based 3-connected 4.82layers pillared into a novel 3D 3,5-connected self-penetrated (4.6.8)(4.658310) topology network by anti-conformation 3-pna ligands. The specific metal coordination environments, fdc binding mode, and 3-pna conformation act synergistically to enforce structure direction in this system. Thermal decomposition properties of these three new materials are also discussed.
