ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Synthesis, crystal structure, and thermal analysis of a copper(II) complex with imidazo[4,5-f]1,10-phenantroline

Fushan Yu, Lingling Zhang, Jinting Tan, Xia Li, Lijun Wang, and et al.

Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Shaanxi Key Laboratory of Physico-Inorganic Chemistry, College of Chemistry and Materials Science, Northwest University, Xi’an, 710069 China

E-mail: yangxuwu@nwu.edu.cn

Abstract: A new complex, [Cu₂(μ ₂-Cl)₂(IP)₂Cl₂] · 4H₂O (IP = imidazo[4,5-f]1,10-phenathroline), was synthesised and characterised by elemental analysis, thermal analysis, IR spectra, and X-ray crystallography. The results showed that the complex crystallises in the monoclinic space group P1; a = 7.880 (2) Å, b = 9.227(2) Å, c = 10.694(2) Å; α = 97.788(4)°, β = 100.637(4)°, γ = 95.841(3)°; V = 750.7(3) ų, and Z = 1. The complex is further stabilised by H-bonds and a π-π stacking interaction between the pyridine and benzene rings of two neighbouring molecules with the centroid.centroid distance of 3.498(3) Å, leading to a 3D supramolecular architecture. Thermal decomposition procedure of the complex explored by TG-DTG has three stages, and the final product is Cu in residual rate of 16.18 % (calculated to be 16.26 %).

Keywords: imidazo[4,5-f]1,10-phenathroline – copper(II) complex – crystal structure – thermal analysis

Full paper is available at www.springerlink.com.

DOI: 10.2478/s11696-010-0087-6

Chemical Papers 65 (1) 23–28 (2011)