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Crystal structure and characterization of a new copper(II) chloride dimer with methyl(pyridin-2-ylmethylidene)amine
The new copper(II) complex, namely, di-μ-chlorido-bis{chlorido[methyl(pyridin-2-ylmethylidene)amine-κ(2) N,N′]copper(II)}, [Cu(2)Cl(4)(C(7)H(8)N(2))(2)], (I), with the ligand 2-pyridylmethyl-N-methylimine (L, a product of Schiff base condensation between methylamine and 2-pyridinecarbaldeh...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
International Union of Crystallography
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7274002/ https://www.ncbi.nlm.nih.gov/pubmed/32523740 http://dx.doi.org/10.1107/S2056989020005903 |
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author | Vassilyeva, Olga Yu. Buvaylo, Elena A. Kokozay, Vladimir N. Melnyk, Andrii K. Skelton, Brian W. |
author_facet | Vassilyeva, Olga Yu. Buvaylo, Elena A. Kokozay, Vladimir N. Melnyk, Andrii K. Skelton, Brian W. |
author_sort | Vassilyeva, Olga Yu. |
collection | PubMed |
description | The new copper(II) complex, namely, di-μ-chlorido-bis{chlorido[methyl(pyridin-2-ylmethylidene)amine-κ(2) N,N′]copper(II)}, [Cu(2)Cl(4)(C(7)H(8)N(2))(2)], (I), with the ligand 2-pyridylmethyl-N-methylimine (L, a product of Schiff base condensation between methylamine and 2-pyridinecarbaldehyde) is built of discrete centrosymmetric dimers. The coordination about the Cu(II) ion can be described as distorted square pyramidal. The base of the pyramid consists of two nitrogen atoms from the bidentate chelate L [Cu—N = 2.0241 (9), 2.0374 (8) Å] and two chlorine atoms [Cu—Cl = 2.2500 (3), 2.2835 (3) Å]. The apical position is occupied by another Cl atom with the apical bond being significantly elongated at 2.6112 (3) Å. The trans angles of the base are 155.16 (3) and 173.79 (2)°. The Cu⋯Cu separation in the dimer is 3.4346 (3) Å. In the crystal structure, the loosely packed dimers are arranged in stacks propagating along the a axis. The X-band polycrystalline 77 K EPR spectrum of (I) demonstrates a typical axial pattern characteristic of mononuclear Cu(II) complexes. Compound (I) is redox active and shows a cyclic voltammetric response with E (1/2) = −0.037 V versus silver–silver chloride electrode (SSCE) assignable to the reduction peak of Cu(II)/Cu(I) in methanol as solvent. |
format | Online Article Text |
id | pubmed-7274002 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | International Union of Crystallography |
record_format | MEDLINE/PubMed |
spelling | pubmed-72740022020-06-09 Crystal structure and characterization of a new copper(II) chloride dimer with methyl(pyridin-2-ylmethylidene)amine Vassilyeva, Olga Yu. Buvaylo, Elena A. Kokozay, Vladimir N. Melnyk, Andrii K. Skelton, Brian W. Acta Crystallogr E Crystallogr Commun Research Communications The new copper(II) complex, namely, di-μ-chlorido-bis{chlorido[methyl(pyridin-2-ylmethylidene)amine-κ(2) N,N′]copper(II)}, [Cu(2)Cl(4)(C(7)H(8)N(2))(2)], (I), with the ligand 2-pyridylmethyl-N-methylimine (L, a product of Schiff base condensation between methylamine and 2-pyridinecarbaldehyde) is built of discrete centrosymmetric dimers. The coordination about the Cu(II) ion can be described as distorted square pyramidal. The base of the pyramid consists of two nitrogen atoms from the bidentate chelate L [Cu—N = 2.0241 (9), 2.0374 (8) Å] and two chlorine atoms [Cu—Cl = 2.2500 (3), 2.2835 (3) Å]. The apical position is occupied by another Cl atom with the apical bond being significantly elongated at 2.6112 (3) Å. The trans angles of the base are 155.16 (3) and 173.79 (2)°. The Cu⋯Cu separation in the dimer is 3.4346 (3) Å. In the crystal structure, the loosely packed dimers are arranged in stacks propagating along the a axis. The X-band polycrystalline 77 K EPR spectrum of (I) demonstrates a typical axial pattern characteristic of mononuclear Cu(II) complexes. Compound (I) is redox active and shows a cyclic voltammetric response with E (1/2) = −0.037 V versus silver–silver chloride electrode (SSCE) assignable to the reduction peak of Cu(II)/Cu(I) in methanol as solvent. International Union of Crystallography 2020-05-05 /pmc/articles/PMC7274002/ /pubmed/32523740 http://dx.doi.org/10.1107/S2056989020005903 Text en © Vassilyeva et al. 2020 http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Research Communications Vassilyeva, Olga Yu. Buvaylo, Elena A. Kokozay, Vladimir N. Melnyk, Andrii K. Skelton, Brian W. Crystal structure and characterization of a new copper(II) chloride dimer with methyl(pyridin-2-ylmethylidene)amine |
title | Crystal structure and characterization of a new copper(II) chloride dimer with methyl(pyridin-2-ylmethylidene)amine |
title_full | Crystal structure and characterization of a new copper(II) chloride dimer with methyl(pyridin-2-ylmethylidene)amine |
title_fullStr | Crystal structure and characterization of a new copper(II) chloride dimer with methyl(pyridin-2-ylmethylidene)amine |
title_full_unstemmed | Crystal structure and characterization of a new copper(II) chloride dimer with methyl(pyridin-2-ylmethylidene)amine |
title_short | Crystal structure and characterization of a new copper(II) chloride dimer with methyl(pyridin-2-ylmethylidene)amine |
title_sort | crystal structure and characterization of a new copper(ii) chloride dimer with methyl(pyridin-2-ylmethylidene)amine |
topic | Research Communications |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7274002/ https://www.ncbi.nlm.nih.gov/pubmed/32523740 http://dx.doi.org/10.1107/S2056989020005903 |
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