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 language | English |
|---|---|
| Pages (from-to) | 81-88 |
| Number of pages | 8 |
| Journal | Polyhedron |
| Volume | 77 |
| DOIs | |
| Publication status | Published - 27 Jul 2014 |
| Externally published | Yes |
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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 journal › Article
}
TY - JOUR
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.
PY - 2014/7/27
Y1 - 2014/7/27
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).
KW - 2-(N-acetylamino)-6-methylpyridine
KW - Copper(II) complexes
KW - Crystal structure
KW - Steric effect
KW - Synthesis
UR - http://www.scopus.com/inward/record.url?scp=84899807403&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84899807403&partnerID=8YFLogxK
U2 - 10.1016/j.poly.2014.04.016
DO - 10.1016/j.poly.2014.04.016
M3 - Article
VL - 77
SP - 81
EP - 88
JO - Polyhedron
JF - Polyhedron
SN - 0277-5387
ER -