2016. 57, 8 – UDC 541.6:541.49:546.92 CHARACTERIZATION, LUMINESCENT PROPERTIES, AND CRYSTAL STRUCTURE DETERMINATION OF [Pt(Ph2bipy)Cl2] S. Shamaei1, A. Heidari2, V. Amani3 1Department of Chemistry, Faculty of Science, Khoramabad Branch, Islamic Azad University, Khorramabad, Iran E-mail: shabnamshamaie@gmail.com 2Department of Chemistry, University of Zabol, Zabol, Iran 3Department of Chemistry, Shahid Beheshti Campus, Farhangian University, Tehran, Iran E-mail: v_amani2002@yahoo.com Received June, 11, 2015 New complex [Pt(Ph2bipy)Cl2] (1) is obtained from the reaction of H2PtCl6 6H2O and 4,4diphenyl-2,2-bipyridine (Ph2bipy) in a mixture of methanol, chloroform, and dimethyl sulfoxide. <...> Suitable crystals of 1 for the diffraction experiment are obtained by slow evaporation of the resulted orange solution at room temperature. <...> This complex is characterized by elemental analysis, IR, 1H NMR, UV-Vis, and luminescence spectroscopy and its structure is studied by the single crystal X-ray diffraction method. <...> X-ray structure determination shows that in the structure of this compound, the Pt(II) atom is four-coordinated in a distorted square-planar configuration by two nitrogen atoms from a bidentate 4,4-diphenyl-2,2-bipyridine ligand and two terminal chlorine atoms. <...> Platinum complexes containing mono-, bi-, and tridentate N-donor ligands are important due to their application in electronics and optical devices, [ 1—3] bio-imaging materials [ 4, 5 ], medicine [ 6—8], and as catalysts [ 9, 10 ]. <...> The synthesis and characterization of 4,4-diphenyl-2,2-bipyridine (Ph2bipy; Scheme 1) compound was reported by Case and Kasper in 1956 [ 13 ]. <...> The Ph2bipy compound is a good bidentate ligand, and only a few complexes have been reported with this ligand, such as those of copper [ 14 ], tin [ 15 ], osmium [ 16 ], and ruthenium [ 17 ]. <...> All of these complexes are fully characterized by spectroscopic methods and their structures are studied through single crystal X-ray diffraction. <...> Infrared spectra (4000—250 cm–1) of solid samples were taken as 1 % dispersion in CsI pellets using a Shimadzu-470 spectrometer. <...> Elemental analysis was performed using a Heraeus CHN-O Rapid analyzer. <...> UV-Vis spectra were recorded on a Shimadzu 2100 spectrometer using a 1 cm path length cell <...>