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Please use this identifier to cite or link to this item: http://apo.ansto.gov.au/dspace/handle/10238/2526

Title: Controlled synthesis of isomorphous coordination polymers via in situ ligand transformation reaction: crystal structure, thermal and magnetic properties.
Authors: Nadeem, MA
Bhadbhade, M
Bircher, R
Stride, JA
Keywords: Crystal Structure
Thermodynamic Properties
Magnetic Properties
Ligands
Synthesis
Polymers
Issue Date: Sep-2010
Publisher: American Chemical Society
Citation: Nadeem, M. A., Bhadbhade, M., Bircher, R., & Stride, J. A. (2010). Controlled synthesis of isomorphous coordination polymers via in situ ligand transformation reaction: crystal structure, thermal and magnetic properties. Crystal Growth & Design, 10(9), 4060-4067.
Abstract: A series of isomorphous [M2(ip)2(L)2]n (M = Co, Ni; ip = isophthalate; L = 4,4′-dipyridyl and pyrazine) coordination polymers was synthesized via in situ ligand transformation reactions, in which 1,2,3-benzene tricarboxylic acid (1,2,3-btcH3) undergoes decarboxylation to isophthalate (ip), which was found to be highly dependent on the reaction temperature. The polymers crystallize in the same crystal triclinic system P. The magnetic properties were investigated by a Quantum Design physical property measurement system (PPMS); all four compounds feature almost isostructural M(II) dimers having ferromagnetic (FM) interactions. The interdimer interactions mediated by two different carboxylate groups of ip are weak, while there is no significant magnetic exchange via the 4,4′-dipyridyl ligands along the chain direction. However, substitution with pyrazine leads to antiferromagnetic exchange of nearest neighbor dimers. © 2010, American Chemical Society
URI: http://dx.doi.org/10.1021/cg1007389
http://apo.ansto.gov.au/dspace/handle/10238/2526
ISSN: 1528-7483
Appears in Collections:Journal Articles

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