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Publication Type
Journal Article
UWI Author(s)
Author, Analytic
Lancashire, Robert, J.; Newman, P. D.; Stephens, F.S.; Vagg, R.S.; Williams, P.A.
Author Affiliation, Ana.
Chemistry; Faculty of Pure and Applied Sciences
Article Title
Chiral metal complexes: Part 46, Crystal structure of {6S, 14S-(4R, 12R-dimethyl)-1,5,9,13-tetraazatricyclo [12,2,1,1 6,9]oc-tadecane} perchlorato-Copper(II)perchlorate
Medium Designator
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Connective Phrase
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Journal Title
Journal of Coordination Chemistry
Translated Title
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Reprint Status
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Date of Publication
1995
Volume ID
34
Issue ID
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Page(s)
345-350
Language
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Connective Phrase
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Location/URL
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ISSN
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Notes
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Abstract
The crystal and molecular structure of {6S,14R-(4R,12R-dimethyl 1)-1,5,9,13-tetraazatricyclo[12,2,1,16,9]-octadecane} perchloratocopper(II) perchlorate [Cu(S-mac5)C1O4]C1O4 has been determined by X-ray analysis. Crystal data: C116H32N4O8C12Cu is monoclinic, space group P21, a = 11.340(3), b= 13.713(2), c = 15.002(1) , b = 97.13(1), Z = 4, The structure was refined by full-matrix least-squares procedures to R = 0.056 for 3494 non-zero (I > 2s(I)) reflections and with h = 1.03(11) confirming the configurations at the critical centres. The two independent cations are structurally equivalent with the N4 macrocycle coordinating to the copper atom in a square-planar arrangement with Cu-Nsec of 1.988(6) and Cu-Ntert of 2.019(5) , and a square-based pyramidal geometry is completed by an oxygen atom of perchlorate ion, Cu-O 2.63(1) . Folding of the non-chelate five-memnered rings produces a conformation such that one face of the complex ion is more available for axial coordination of unidentate ligands....
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Keywords
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