Synthesis, Crystal Structure and Spectral Properties of Copper(II) 2-Chloronicotinato Complexes with N-Heterocyclic Ligands

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Abstract

The synthesis and characterization of nine new copper(II) complexes [Cu(2-Clnic)2L2] (where 2-Clnic is 2-chloronicotinate anion, L is imidazole – Im, benzimidazole – Bim, furo[3,2-c]pyridine – FP, 2-methylfuro[3,2-c]pyridine – MFP, or [1]benzofuro[3,2-c]pyridine – BFP), [Cu(2-Clnic)2(INA)] (where INA is isonicotinamide), [Cu(2-Clnic)2(4-py)]·H2O (where 4-py is 4-methylpyridine) and [Cu2(2-Clnic)4(IQ)2] (where IQ is isoquinoline) are reported. The characterizations were based on elemental analysis, infrared, electronic and EPR spectra. The dimeric character of [Cu2(2-Clnic)4(IQ)2] is assumed on the EPR spectrum and the other spectral methods. The crystal structure of the [Cu(2-Clnic)2(Bim)2] and [Cu(2-Clnic)2(FP)2] complexes have been determined by X-ray crystal structure analysis. Both complexes exhibit the hexacoordination coordination polyhedra around copper atom that lies in the crystallographic center of symmetry. The distorted tetragonal-bipyramidal (4+2) arrangement is in good agreement with spectral data that have suggested an asymmetric chelate coordination of the carboxylic group.

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  • BOURHIS L.J. DOLOMANOV O.V. GILDEA R.J. HOWARD J.A.K. PUSCHMANN H.: The anatomy of a comprehensive constrained restrained refinement program for the modern computing environment - Olex2 dissected. Acta Crystallogr. Sect. A 71 2015 59-75.

  • DEACON G.B. PHILLIPS R.J.: Relationships between the carbon-oxygen stretching frequencies of carboxylato complexes and the type of carboxylate coordination. Coord. Chem. Rev. 33 1980 227-250.

  • DOLOMANOV O.V. BOURHIS L.J. GILDEA R.J. HOWARD J.A.K. PUSCHMANN H.: OLEX2: a complete structure solution refinement and analysis program. J. Appl. Crystallogr. 42 2009 339-341.

  • ELOY F. DERYCKERE A.: Sur la synthése des furo[32-c]pyridines. J. Heterocycl. Chem. 8 1971 57-60.

  • JANIAK C.: A critical account on π-π stacking in metal complexes with aromatic nitrogen-containing ligands. J. Chem. Soc. Dalton Trans. 21 2000 3885-3896.

  • JIN S.W WANG D.Q. XU Y.C.: Five new metal(II) complexes with 3-D network structures based on carboxylate and bis(imidazole) ligands: syntheses and structures. J. Coord. Chem. 65 2012 1953-1969.

  • JIN S.W YE X.H JIN L. ZHENG L. LI J.W. JIN B.P. WANG D.Q.: Syntheses and structural characterization of nine coordination compounds assembled from copper acetate 35-dimethylpyrazole and carboxylates. Polyhedron 81 2014 382-395.

  • JIN S.W LIU H. CHEN G.Q. AN Z.Y. LOU Y.L. HUANG K. WANG D.Q.: Syntheses and crystal structures of copper(II) zinc(II) and cadmium(II) complexes containing pyridine quinoline and 2-methylquinoline. Polyhedron 95 2015 91-107.

  • KATO M. MUTO Y.: Factors affecting the magnetic properties of dimeric copper(II) complexes. Coord. Chem. Rev. 92 1988 45-83.

  • LEVER A.B.P.: Inorganic electronic spectroscopy 2nd Ed. Elsevier Amsterdam 1984 480 p.

  • MILATA V. SEGĽA P. GATIAL A. KOVÁČIK V. MIGLIERINI M. STANKOVSKÝ Š. ŠÍMA J.: Aplikovaná molekulová spektroskopia Vydavateľstvo STU 2008; 600 p.

  • MONCOL J. PALICOVÁ M. SEGĽA P. KOMAN M. MELNÍK M. VALKO M. GLOWIAK T.: Crystal and spectral study of copper(II) pyridinecarboxylates: Crystal and molecular structure of trans-diaqua-bis(NN-diethylnicotinamide-N)bis(2-chloronicotinate-O)copper(II). Polyhedron 21 2002 365-370.

  • MONCOL J. MÚDRA M. LONNECKE P. KOMAN M. MELNÍK M.: Copper(II) halogenopropionates: Low-temperature crystal and molecular structure of bis(22-dichloropropionato)-di(methyl-3-pyridylcarbamate)copper(II) and bis(2-bromopropionato)-di(2-pyridylmethanol)copper(II). J. Coord. Chem. 57 2004 1065-1078.

  • MONCOL J. SEGĽA P. MIKLOŠ D. MAZÚR M. MELNÍK M. GLOWIAK T. VALKO M. KOMAN M.: Structural diversity of coordination polymers with bridging 3-pyridylmethanol ligand: New type of coordination polymer with different stereochemistry of copper(II) atom. Polyhedron 25 2006 1561-1566.

  • MONCOL J. KORABIK M. SEGĽA P. KOMAN M. MIKLOŠ D. JAŠKOVÁ J. GLOWIAK T. MELNÍK M. MROZINSKI J. SUNDBERG M.R.: Preparation structure and magnetic properties of copper(II) halogenonicotinates: Crystal and molecular structure of tetrakis(μ-2-chloronicotinato-OO')-diaquadicopper(II). Z. Anorg. Allg. Chem. 633 2007 298-305.

  • NAKAMOTO K.: Infrared and Raman spectra of inorg. and coord. compounds Part B 5th Edition New York 1997 384-387.

  • RAO C.N.R. NATARAJAN R. VAIDHYANATHAN R.: Metal carboxylates with open architectures. Angew. Chem. Int. Ed. 43 2004 1466-1496.

  • SHELDRICK G.M.: SHELXT - Integrated space-group and crystal-structure determination. Acta Crystallogr. Sect. A 71 2015a 3-8.

  • SHELDRICK G.M.: Crystal structure refinement with SHELXL. Acta Crystallogr. Sect. C 71 2015b 3-8.

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