Metal azelate coordination polymers containing a kinked dipyridyl tether: CdSO4 topology and “ligand vacancy” primitive cubic three-dimensional networks
摘要:
Hydrothermal self-assembly has generated three coordination polymers incorporating the kinked hydrogen-bonding capable tethering ligand 4,4'-dipyridylamine (dpa) and the long flexible aliphatic dicarboxylate azelate dianion (-O2C(CH2)(7)CO2-, aze), [M(aze)(dpa)(H2O)](n) (M = Co, 1; M = Ni, 2) and {[Cd(aze)(dpa)] center dot 2H(2)O}(n) (3). Complexes 1 and 2 possess crystallographically disordered azelate ligands, forming related three-dimensional (3-D) 4-connected "ligand vacancy" primitive cubic coordination polymer networks via the random intersection of two different types of [M(aze)(dpa)](n) idealized two-dimensional (2-D) layers. Compound 3 manifests a 3-D 6(5)8 CdSO4 topology coordination polymer network, formed from orthogonal sets of parallel [Cd(aze)](n) double chains linked through dpa ligands. Luminescent properties for 3 and thermal properties are also discussed. (C) 2009 Elsevier Ltd. All rights reserved.
Metal azelate coordination polymers containing a kinked dipyridyl tether: CdSO4 topology and “ligand vacancy” primitive cubic three-dimensional networks
摘要:
Hydrothermal self-assembly has generated three coordination polymers incorporating the kinked hydrogen-bonding capable tethering ligand 4,4'-dipyridylamine (dpa) and the long flexible aliphatic dicarboxylate azelate dianion (-O2C(CH2)(7)CO2-, aze), [M(aze)(dpa)(H2O)](n) (M = Co, 1; M = Ni, 2) and {[Cd(aze)(dpa)] center dot 2H(2)O}(n) (3). Complexes 1 and 2 possess crystallographically disordered azelate ligands, forming related three-dimensional (3-D) 4-connected "ligand vacancy" primitive cubic coordination polymer networks via the random intersection of two different types of [M(aze)(dpa)](n) idealized two-dimensional (2-D) layers. Compound 3 manifests a 3-D 6(5)8 CdSO4 topology coordination polymer network, formed from orthogonal sets of parallel [Cd(aze)](n) double chains linked through dpa ligands. Luminescent properties for 3 and thermal properties are also discussed. (C) 2009 Elsevier Ltd. All rights reserved.