期刊
POLYHEDRON
卷 52, 期 -, 页码 1059-1064出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.poly.2012.06.074
关键词
Copper; Crystal structure; Hydrogen bonds; Pyrimidines
资金
- Leiden University Study group WFMO (Werkgroep Fundamenteel MaterialenOnderzoek)
- Distinguished Scientist Fellowship Program (DSFP) at King Saud University
Three new Cu(II) compounds of pyridine-2,6-dicarboxylic acid (H(2)pdc) with substituted pyrimidines as additional ligands have been synthesized and structurally characterized using X-ray diffraction, i.e. [Cu(pdc)(4HOpym)(H2O)(2)](H2O)(2) (1) (4HOpym = 4-hydroxypyrimidine), [Cu(Pdc)(anpym)(H2O)] (2) (anpym = 2-amino-5-nitropyrimidine) and [Cu(pdc)(cinpym)(H2O)](H2O) (3) (clnpym = 2-chloro-4-nitropyrimidine). The three compounds are further characterized by IR, EPR and ligand field spectroscopy. The geometry around the Cu(II) ions is distorted octahedral for (1) and distorted square pyramidal for (2) and (3). Inter- and intramolecular hydrogen bondings play an important role in the structure and packing of the compounds. (C) 2012 Elsevier Ltd. All rights reserved.
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