The first bis(orotato-N,O) cadmium complex with monodentate protonated ethylenediamine ligands: Synthesis, spectrothermal properties of a cadmium(II)-orotato complex with ethylenediamine – Crystal structure of trans-[Cd(HOr)2(enH)2<
- 作者：Okan Zafer Yeş ; ilel ; Halis Ö ; lmez ; Cengiz Arici
- 关键词：Orotic acid complexes ; 1 ; 10-Phenanthroline complex ; Protonated ethylenediamine complex ; Cadmium complexes
- 刊名：Polyhedron
- 出版年：2007
- 期刊代码：87_02775387
- 类别：ch
- 出版时间：31 August 2007
- 卷：26
- 期：14
- 页码：3669-3674
- 文件大小：393 K
摘要
Two new orotic acid complexes of cadmium(II) with protonated monodentate ethylenediamine and 1,10-phenanthroline were synthesized and characterized by X-ray diffraction techniques. trans-[Cd(HOr)2(enH)2] · 2H2O (1) (enH = ethylenediammonium) crystallizes in the triclinic system, space group 
, and the Cd(II) ion exhibits a distorted octahedral coordination by bis(bidentate) orotate anions and two protonated monodentate ethylenediamine ligands. The individual molecules of 1 are held together by N–H
O and O–HO hydrogen bonds, forming a three-dimensional network. The supramolecular compound cis-[Cd(H2O)2(phen)2](H2Or)2 · 2H2O (2) (phen = 1,10-phenanthroline) crystallizes in the monoclinic system, space group C2/c and the Cd(II) ion is coordinated by two symmetry related aqua ligands together with a pair of symmetry related bidentate 1,10-phenanthroline molecules, and exhibits a distorted octahedral coordination. The unique orotate anion in the asymmetric unit has a single negative charge. The coordinated water molecules link the orotate ions to the metal complex via O–HO hydrogen bonds. Each uncoordinated water molecule is hydrogen bonded to orotate ions through O–HO hydrogen bonds. Thus, an extensive network of hydrogen bonds stabilizes the crystal structure and forms an infinitive three dimensional lattice. The IR spectrum and thermal analysis of 1 is described. The decomposition reaction take places in the temperature range 20–1000 °C in static air atmosphere.
O and O–HO hydrogen bonds, forming a three-dimensional network. The supramolecular compound cis-[Cd(H2O)2(phen)2](H2Or)2 · 2H2O (2) (phen = 1,10-phenanthroline) crystallizes in the monoclinic system, space group C2/c and the Cd(II) ion is coordinated by two symmetry related aqua ligands together with a pair of symmetry related bidentate 1,10-phenanthroline molecules, and exhibits a distorted octahedral coordination. The unique orotate anion in the asymmetric unit has a single negative charge. The coordinated water molecules link the orotate ions to the metal complex via O–HO hydrogen bonds. Each uncoordinated water molecule is hydrogen bonded to orotate ions through O–HO hydrogen bonds. Thus, an extensive network of hydrogen bonds stabilizes the crystal structure and forms an infinitive three dimensional lattice. The IR spectrum and thermal analysis of 1 is described. The decomposition reaction take places in the temperature range 20–1000 °C in static air atmosphere.