Study of the Interaction of Bis(4‐pyridylthio)methane with Copper(II) Chloride and Bromide |
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| Authors: | Almudena Amoedo‐Portela,Rosa Carballo,Jos S. Casas,Emilia Garcí a‐Martí nez,Ana B. Lago‐Blanco,Angeles S nchez‐Gonz lez,Jos Sordo,Ezequiel M. V zquez‐L pez |
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| Affiliation: | Almudena Amoedo‐Portela,Rosa Carballo,José S. Casas,Emilia García‐Martínez,Ana B. Lago‐Blanco,Angeles Sánchez‐González,José Sordo,Ezequiel M. Vázquez‐López |
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| Abstract: | The new ligand bis(4‐pyridylthio)methane (4‐bpytm) ( 1 ) and its complexes [CuX2(4‐bpytm)] and [CuX2(4‐bpytm)2] (X = Cl and Br) ( 2 – 5 ) have been prepared and characterized by elemental analysis, IR‐Raman, UV/Vis spectroscopy. The structures of (4‐bpytm) ( 1 ), [CuCl2(4‐bpytm)2] ( 3 ) and [CuBr2(4‐bpytm)2] ( 4 ) were determined by single‐crystal X‐ray diffraction analysis. X‐ray analysis of the 1:2 derivatives reveals that the copper atom has a distorted (4 + 2) octahedral environment. The copper atom is coordinated by four nitrogen atoms from four bridging 4‐bpytm ligands and two halogen atoms. The axial Cu–N bonds are considerably longer than the equatorial Cu–N bonds owing to JahñTeller distortion. CuX2 units are linked to each other through bridging 4‐bpytm ligands to form a 2D interpenetrated coordination polymer. The structural parameters of the 4‐bpytm ligand in these complexes were compared with those of the free ligand. |
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| Keywords: | Bis(4‐pyridylthio)methane Copper(II) Coordination polymers Supramolecular chemistry Crystal structure |
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