Crystal structure and properties of the [Cu(C11H10N4)Br2] compound. Stereochemistry of [Cu(planar tridentate ligand)(unidentate ligand)2] complexes |
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| Institution: | 1. Department of Petroleum Engineering, Faculty of Engineering, University of Garmsar, Garmsar, Iran;2. Department of Chemistry, Faculty of Science, University of Maragheh, P.O. Box 55181-83111, Maragheh, Iran;3. Organic Chemistry Department, Faculty of Science, Peoples Friendship University of Russia (RUDN University), Miklukho-Maklaya Str. 6, 117198 Moscow, Russian Federation;4. Department of General and Coordination Chemistry and Crystallography, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Sklodowska University in Lublin, Pl. Marii Curie-Sklodowskiej 3, 20-031 Lublin, Poland;5. Department of Inorganic Chemistry, Faculty of Chemistry, University of Tabriz, 51666-16471 Tabriz, Iran;6. Departament de Química, Universitat de les Illes Balears, Cra. de Valldemossa km 7.5, 07122 Palma de Mallorca (Baleares), Spain;7. University of Tyumen, Volodarskogo Str. 6, 625003 Tyumen, Russian Federation;8. Advanced Materials for Industry and Biomedicine laboratory, Kurgan State University, Sovetskaya Str. 63/4, 640020 Kurgan, Russian Federation;9. Innovation Center for Chemical and Pharmaceutical Technologies, Ural Federal University named after the First President of Russia B.N. Eltsin, Mira Str. 19, Ekaterinburg, 620002, Russian Federation;1. Department of Chemistry, Malaviya National Institute of Technology, Jaipur, Rajasthan 302017, India;2. Department of Chemistry, University of Rajasthan, Jaipur, Rajasthan 302004, India;3. Solid State and Supramolecular Structural Chemistry Laboratory, School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Bhubaneswar, Odisha 752050, India;4. Department of Chemical Sciences, Tezpur University, Tezpur, Assam 784028, India;5. Department of Industrial and Engineering Chemistry, Institute of Chemical Technology - Indian Oil Campus, Bhubaneswar, Odisha 751013, India;6. Department of Chemistry, SRM University-AP, Andhra Pradesh 522240, India;7. Department of Physics, School of Applied Sciences, KIIT University, Bhubaneswar, Odisha 751024, India.;8. Composite Materials and Mechanics Laboratory, Mechanical and Aerospace Engineering Department, New York University, Tandon School of Engineering, Brooklyn, New York 11201, USA |
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| Abstract: | The crystal structure of the dibromo(pyridine-2-aldehyde 2′-pyridylhydrazone) copper(II) is reported. The compound crystallizes in space group P21/n, with a = 12.86(2), b = 11.944(5), c = 8.770(7) Å, β = 97.17(6)°, U = 1336(3) Å3, Z = 4, Dm = 2.06(1), Dx= 2.10 g cm−3, μ(Mo-Kα) = 78.92 mm−1, F(000) = 812, T = 293 K. Final R is 0.047 (Rw = 0.049) for 854 observed reflections. The structure consists of discrete molecules in which the copper(II) ion is pentacoordinate with a distorted square pyramidal geometry. The spectroscopic data are in good agreement with the structural results. The stereochemistry of several pentacoordinate complexes of type Cu(planar tridentate ligand) (unidentate ligand)2] is examined and the distortions of the coordination polyhedra are calculated. |
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