A CuII polymeric complex surveying triethanolamine and 1,2-DI4-pyridylethylene as bridging ligandsReport as inadecuate




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We report the synthesis and crystal structure of a copper II polymeric complex I prepared by reaction of CuClO42center dot 5H2O with H3tea triethanolamine, and dpe 1,2-di4-pyridylethylene. 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-2H2tea2dpecenter dotClO42}n and the second one made is up of two dimers of different occupancies and charge content, viz., Cu-2Htea2dpe neutral, 64% occupancy and Cu-2H2tea2dpe2+ cationic, 36% occupancy, this latter fraction balancing the charge introduced by ClO4 anions with 72% occupancy. Both substructures differ in that the Hmtea anions in the dimers m = 1,2 do not bridge cations as their homologue H2tea 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-2H2tea2dpecenter dotbpecenter dotClO42center dot H2O II, where the same original constituents assemble in a slightly different way1.Nota general

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Author: Atria Salas, Ana María; - Parada Aliste, José; - Garland, María Teresa; - Baggio, Ricardo; -

Source: http://repositorio.uchile.cl/



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