Metal coordination and in situ S-C bond cleavage of the bis(2-pyridylthio)methane ligand |
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Authors: | Belén Lago Ana Amoedo Almudena Carballo Rosa García-Martínez Emilia Vázquez-López Ezequiel M |
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Institution: | Departamento de Química Inorgánica, Facultade de Química, Universidade de Vigo, E-36310, Vigo, Galicia-Spain. ablago@uvigo.es |
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Abstract: | The compound 2bpytmH](2)I(3)](2)I(2)], which contains protonated 2bpytm, and four neutral monomeric complexes CoCl(2)(2bpytm)]·H(2)O (1), CoBr(2)(2bpytm)] (2), CoI(2)(2bpytm)]·1/2H(2)O (3) and NiBr(2)(2bpytm)]·H(2)O (4) have been obtained during a study into the reactivity of the bis(2-pyridylthio)methane (2bpytm) ligand towards cobalt(II) and nickel(II) halides. Furthermore, a cyclic dimer CuBr(2)(2bpytm)](2) (5) and a 1D polymer CuBr(2)(2bpytm)](n)·CH(3)CN (6) have been obtained from copper(II)/(I) bromide salts. An unprecedented S-CH(2)-S activation and cleavage in 2bpytm has been observed on using copper(II) salts with organic and voluminous inorganic anions. The cleavage of 2bpytm enabled the isolation of copper(II) complexes containing the in situ generated ligands 2-pyridinethiolate, 2-pyridinesulfenate or 2-pyridinesulfonate. |
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