A Cu(II) polymeric complex surveying triethanolamine and 1,2-DI(4-pyridyl)ethylene as bridging ligands
Author
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Atria Salas, Ana María
Author
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Parada Aliste, José
Author
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Garland, María Teresa
Author
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Baggio, Ricardo
Admission date
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2015-12-28T20:17:13Z
Available date
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2015-12-28T20:17:13Z
Publication date
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2015
Cita de ítem
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J. Chil. Chem. Soc., 60, Nº 3 (2015)
en_US
Identifier
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0717-9707
Identifier
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https://repositorio.uchile.cl/handle/2250/136007
General note
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Artículo de publicación ISI
en_US
Abstract
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We report the synthesis and crystal structure of a copper (II) polymeric complex (I) prepared by reaction of Cu(ClO4)(2)center dot 5H(2)O with H(3)tea (triethanolamine,) and dpe (1,2-di(4-pyridyl)ethylene). in ethanol. The compound is made up of two well differentiated substructures, the first one being a cationic 1D polymer balanced by ClO4- counteranions {[Cu-2(H(2)tea)(2)(dpe)]center dot(ClO4)(2)}(n) and the second one made is up of two dimers of different occupancies and charge content, viz., [Cu-2(Htea)(2)(dpe)] (neutral, 64% occupancy) and [Cu-2(H(2)tea)(2)(dpe)](2+) (cationic, 36% occupancy), this latter fraction balancing the charge introduced by ClO4 anions with 72% occupancy.
Both substructures differ in that the H(m)tea anions in the dimers (m = 1,2) do not bridge cations as their homologue H(2)tea does in the polymer, but chelate instead one single Cu each. As shown in scheme.
The structure of (I) is compared with its close relative [Cu-2(H(2)tea)(2)(dpe)]center dot(bpe)center dot(ClO4)(2)center dot H2O (II), where the same original constituents assemble in a slightly different way(1).