Synthesis, crystal structure and luminescence properties of a cadmium(II) complex based on 2-hydroxy-6-methylisonicotinic acid
Document Type
Article
Publication Date
1-1-2016
Abstract
A new cadmium(II) complex [Cd(Hminic)(IP)]n (1, Hminic = 2-hydroxy-6-methylisonicotinic acid, IP = imidazo[4,5-f]-1,10-phenanthroline), has been synthesized by the reaction of a Hminic and auxiliary N-containing ligands with Cd(II) ion under hydrothermal conditions. The complex was studied by elemental analysis, IR spectroscopy and X-ray crystallography. It is formulated as C20H13CdN5O3, crystallizes in monoclinic system, space group C2/c with α = 9.6764(8), b = 26.767(2), c = 14.1332(11) Å and β = 97.4510(10)°. V = 3629.7(5) Å3, Z = 8, Mr = 483.75, Dc = 1.770 g/cm3, F(000) = 1484 and μ = 1.237 mm-1. The final refinement gave R = 0.0309 and wR = 0.0703 for 4151 reflections with I > 2σ(I). In the structure of 1, two Cd(II) atoms are joined by a pair of μ2-hydroxyl oxygen atoms giving rise to a dinuclear Cd(II) unit which is bridged by Hminic linkers to form a 1D ladder-like polymer chain. The chelating ligand IP coordinated to the Cd(II) atom, and alternately attached to both sides of the ladder-like polymer chain. Adjacent chains are further bound together by strong intermolecular hydrogen bonds and face-To-face φφ interactions, resulting in the formation of a 3D supramolecular architecture. Furthermore, the thermal stability and luminescent properties of this complex and the free ligands have been investigated.
Keywords
2-Hydroxy-6-Methylisonicotinic Acid, Cadmium(II) Complex, Luminescent Property
Divisions
CHEMISTRY
Funders
National Natural Science Foundation of China (No. 21273101),Tackle Key Problem of Science and Technology Project of Henan Province (No. 142102310483),Program for Science & Technology Innovation Talents and Research Team in Universities of Henan (No. 2014HASTIT014 and 4IRTSTHN008),Key Program of Foundation of Education Committee of Henan Province (No. 14B150033)
Publication Title
Jiegou Huaxue
Volume
35
Issue
2
Publisher
Fujian Institute of Research of the Structure of Matter