Steric influence of the 6-methyl group on the molecular and crystal structures of copper(II) chloride complexes with 2-(N-acetylamino)-6- methylpyridine

Anton I. Smolentsev, Elisaveta V. Lider, Ludmila G. Lavrenova, Liliya A. Sheludyakova, Artem S. Bogomyakov, Sergei F. Vasilevsky

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

New coordination compounds of copper(II) chloride with 2-(N-acetylamino)-6- methylpyridine (L) of the compositions [Cu2L2Cl 4] (1), [CuL(H2O)Cl2]·L (1a), and [CuL2Cl][CuLCl3]·C2H5OH (2) have been prepared by the reactions between ethanol solutions of L and ethanol solutions of CuCl2·2H2O at different Cu:L ratios. The compounds have been characterized by a set of methods including elemental analysis, IR-spectroscopy, single-crystal X-ray diffraction analysis, and magnetic susceptibility measurements in the range 5-300 K (for 1). The crystal structures of 1 and 1a revealed distorted square-pyramidal geometry around Cu(II) centers, while in 2 both distorted square-pyramidal and trigonal-bipyramidal coordinations are present. L acts as a bidentate chelate ligand bound to the metal center through the pyridine N atom and the acetyl O atom. The results of the study demonstrate that the presence of 6-methyl substituent in L provides a high steric hindrance, precluding the formation of complexes with a distorted octahedral coordination of Cu(II).

Original languageEnglish
Pages (from-to)81-88
Number of pages8
JournalPolyhedron
Volume77
DOIs
Publication statusPublished - 27 Jul 2014
Externally publishedYes

Fingerprint

Molecular structure
Ethanol
molecular structure
Crystal structure
chlorides
Copper
copper
Atoms
crystal structure
ethyl alcohol
Chemical analysis
Magnetic susceptibility
Pyridine
X ray diffraction analysis
Infrared spectroscopy
Metals
Ligands
Single crystals
chelates
atoms

Keywords

  • 2-(N-acetylamino)-6-methylpyridine
  • Copper(II) complexes
  • Crystal structure
  • Steric effect
  • Synthesis

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

Cite this

Steric influence of the 6-methyl group on the molecular and crystal structures of copper(II) chloride complexes with 2-(N-acetylamino)-6- methylpyridine. / Smolentsev, Anton I.; Lider, Elisaveta V.; Lavrenova, Ludmila G.; Sheludyakova, Liliya A.; Bogomyakov, Artem S.; Vasilevsky, Sergei F.

In: Polyhedron, Vol. 77, 27.07.2014, p. 81-88.

Research output: Contribution to journalArticle

Smolentsev, Anton I. ; Lider, Elisaveta V. ; Lavrenova, Ludmila G. ; Sheludyakova, Liliya A. ; Bogomyakov, Artem S. ; Vasilevsky, Sergei F. / Steric influence of the 6-methyl group on the molecular and crystal structures of copper(II) chloride complexes with 2-(N-acetylamino)-6- methylpyridine. In: Polyhedron. 2014 ; Vol. 77. pp. 81-88.
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abstract = "New coordination compounds of copper(II) chloride with 2-(N-acetylamino)-6- methylpyridine (L) of the compositions [Cu2L2Cl 4] (1), [CuL(H2O)Cl2]·L (1a), and [CuL2Cl][CuLCl3]·C2H5OH (2) have been prepared by the reactions between ethanol solutions of L and ethanol solutions of CuCl2·2H2O at different Cu:L ratios. The compounds have been characterized by a set of methods including elemental analysis, IR-spectroscopy, single-crystal X-ray diffraction analysis, and magnetic susceptibility measurements in the range 5-300 K (for 1). The crystal structures of 1 and 1a revealed distorted square-pyramidal geometry around Cu(II) centers, while in 2 both distorted square-pyramidal and trigonal-bipyramidal coordinations are present. L acts as a bidentate chelate ligand bound to the metal center through the pyridine N atom and the acetyl O atom. The results of the study demonstrate that the presence of 6-methyl substituent in L provides a high steric hindrance, precluding the formation of complexes with a distorted octahedral coordination of Cu(II).",
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T1 - Steric influence of the 6-methyl group on the molecular and crystal structures of copper(II) chloride complexes with 2-(N-acetylamino)-6- methylpyridine

AU - Smolentsev, Anton I.

AU - Lider, Elisaveta V.

AU - Lavrenova, Ludmila G.

AU - Sheludyakova, Liliya A.

AU - Bogomyakov, Artem S.

AU - Vasilevsky, Sergei F.

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N2 - New coordination compounds of copper(II) chloride with 2-(N-acetylamino)-6- methylpyridine (L) of the compositions [Cu2L2Cl 4] (1), [CuL(H2O)Cl2]·L (1a), and [CuL2Cl][CuLCl3]·C2H5OH (2) have been prepared by the reactions between ethanol solutions of L and ethanol solutions of CuCl2·2H2O at different Cu:L ratios. The compounds have been characterized by a set of methods including elemental analysis, IR-spectroscopy, single-crystal X-ray diffraction analysis, and magnetic susceptibility measurements in the range 5-300 K (for 1). The crystal structures of 1 and 1a revealed distorted square-pyramidal geometry around Cu(II) centers, while in 2 both distorted square-pyramidal and trigonal-bipyramidal coordinations are present. L acts as a bidentate chelate ligand bound to the metal center through the pyridine N atom and the acetyl O atom. The results of the study demonstrate that the presence of 6-methyl substituent in L provides a high steric hindrance, precluding the formation of complexes with a distorted octahedral coordination of Cu(II).

AB - New coordination compounds of copper(II) chloride with 2-(N-acetylamino)-6- methylpyridine (L) of the compositions [Cu2L2Cl 4] (1), [CuL(H2O)Cl2]·L (1a), and [CuL2Cl][CuLCl3]·C2H5OH (2) have been prepared by the reactions between ethanol solutions of L and ethanol solutions of CuCl2·2H2O at different Cu:L ratios. The compounds have been characterized by a set of methods including elemental analysis, IR-spectroscopy, single-crystal X-ray diffraction analysis, and magnetic susceptibility measurements in the range 5-300 K (for 1). The crystal structures of 1 and 1a revealed distorted square-pyramidal geometry around Cu(II) centers, while in 2 both distorted square-pyramidal and trigonal-bipyramidal coordinations are present. L acts as a bidentate chelate ligand bound to the metal center through the pyridine N atom and the acetyl O atom. The results of the study demonstrate that the presence of 6-methyl substituent in L provides a high steric hindrance, precluding the formation of complexes with a distorted octahedral coordination of Cu(II).

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