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Hexa-μ(2)-bromido-μ(4)-oxo-tetrakis[(nicotine)copper(II)]
In the title compound, hexa-μ(2)-bromido-μ(4)-oxo-tetrakis{[3-(1-methyl-2-pyrrolidinyl)pyridine-κN]copper(II)}, [Cu(4)Br(6)O(C(10)H(14)N(2))(4)], the four Cu atoms are tetrahedrally arranged around the O atom at the cluster center. The Cu and coordinated N atoms lie along directions which corresp...
Autores principales: | , , |
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Formato: | Texto |
Lenguaje: | English |
Publicado: |
International Union of Crystallography
2008
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2961882/ https://www.ncbi.nlm.nih.gov/pubmed/21202807 http://dx.doi.org/10.1107/S1600536808018473 |
Sumario: | In the title compound, hexa-μ(2)-bromido-μ(4)-oxo-tetrakis{[3-(1-methyl-2-pyrrolidinyl)pyridine-κN]copper(II)}, [Cu(4)Br(6)O(C(10)H(14)N(2))(4)], the four Cu atoms are tetrahedrally arranged around the O atom at the cluster center. The Cu and coordinated N atoms lie along directions which correspond to four of the eight threefold axial directions of a regular octahedron. Each Cu atom lies at the center of a trigonal bipyramid, with the O atom and the pyridine N atom of a nicotine ligand in the axial positions and three Br atoms in the equatorial positions. Average bond distances are: Cu—N = 1.979 (8), Cu—O = 1.931 (6), Cu—Br = 2.514 (14) and Cu⋯Cu = 3.154 (6) ÅÅ. The configuration of the nicotine ligands is that of the trans diastereomer. In addition, the crystal structure contains five intramolecular C—H⋯Br hydrogen bonds, which determine (or support) the orientation of the nicotine molecules relative to their three equatorial Br atoms. One of the nicotine molecules has two C—H⋯Br contacts, while the other three nicotine molecules show only one C—H⋯Br bond each. Two other intermolecular C—H⋯Br hydrogen bonds connect the complex molecules, forming ribbons which extend in the b- and c-axis directions. |
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