Synthesis and structural characterization of a disulphide-bridged tetranuclear palladium(II) complex derived from 3,5-diacetyl 1,2,4-triazole bis(4-ethylthiosemicarbazone)
EntityUAM. Departamento de Química Inorgánica
10.1016/j.inoche.2006.09.016Inorganic Chemistry Communications 10.1 (2007): 97-100
Funded byWe are grateful to Ministerio de Sanidad y Consumo, Instituto de Salud Carlos III (PI040354) and Comunidad Autónoma de Madrid (GR/SAL/0180/2004) of Spain for ﬁnancial support
Subjects1,2,4-triazole; Bis(thiosemicarbazone); Crystal structure; Disulphide-bridged; Tetranuclear palladium(II) complexes; Water molecules encapsulated; Química
NoteNOTICE: this is the author’s version of a work that was accepted for publication in Inorganic Chemistry Communications. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Inorganic Chemistry Communications 10.1 (2007): 97-100 DOI http://dx.doi.org/10.1016/j.inoche.2006.09.016
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A novel tetranuclear [Pd4(μ2-η2-S2)(H2L1)2] complex, where H2L1 is the anion of 3,5-diacetyl-1,2,4-triazole bis(4-ethylthiosemicarbazone), was synthesized and structurally characterized by single crystal X-ray diffraction. The molecular structure shows an unexpected μ2-η2-S2 bridge, which is shared by all the four palladium atoms. Each trideprotonate 3,5-diacetyl-1,2,4-triazole bis(4-ethylthiosemicarbazone) ligand acts as a hexadentate in a symmetrical manner bridging two metal ions through the two adjacent nitrogen atoms of the central triazole ring. The molecular packing is characterized by hydrogen bond interactions to form a 3D supramolecular architecture with channels running down the c* axis in which the lattice water molecules are encapsulated
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