Volume 25, Issue 3 (9-2017)
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Tabatabaee M, Dušek M, Pojarova M. The phase transition of pyridine-2-6-dicarboxylateo nickel (II), rehydrate at different temperatures. www.ijcm.ir 2017; 25 (3) :667-672
URL: http://ijcm.ir/article-1-964-en.html
URL: http://ijcm.ir/article-1-964-en.html
The phase transition of pyridine-2-6-dicarboxylateo nickel (II), rehydrate at different temperatures
Abstract: (3568 Views)
A nickel complex with pyridine-2,6-dicarboxylic acid formulated as [Ni(pydcH)2].3H2O was synthesized and its crystal structure determined with single-crystal X-ray at diffraction temperatures (296 K and 120 K). Pyridine-2,6-dicarboxyli acid deprotonated on one group of COOH and two pydcH- anion is coordinated to Ni(II) atom as a tridentate ligand forming a distorted octahedral environment. The phase transition in crystal system is obtained with differ in temperature. The title compound is crystallized in monoclinic system with P21/c space group at 296 K, while it is crystallized in triclinic system with C
space group at 120 K.
space group at 120 K.
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