Electrochemical Synthesis of MII Complexes with a Schiff Base containing an Amido Group. Crystal Structure of a Cobalt(II) Complex with a Reorganised Ligand |
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| Authors: | M. Jesú s Rodrí guez,M. Isabel Fern ndez,Ana M. Gonz lez‐Noya,Marcelino Maneiro,Rosa Pedrido,Miguel V zquez,Bruno Donnadieu,Manuel R. Bermejo |
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| Affiliation: | M. Jesús Rodríguez,M. Isabel Fernández,Ana M. González‐Noya,Marcelino Maneiro,Rosa Pedrido,Miguel Vázquez,Bruno Donnadieu,Manuel R. Bermejo |
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| Abstract: | M(HL)(H2O)n complexes have been obtained by the electrochemical reaction of Fe, Co, Ni, Cu, Zn and Cd anodes with the potentially pentadentate and trianionic asymmetrical Schiff base 3‐aza‐N‐{2‐[1‐aza‐2‐(5‐nitro‐2‐hydroxylphenyl)‐vinyl]phenyl}‐4‐(5‐nitro‐2‐hydroxyphenyl)but‐3‐enamide (H3L), containing a hard amido donor atom. The complexes have been characterized by elemental analysis, mass spectrometry, IR and 1H NMR spectroscopies, magnetic measurements and molar conductivities. Co(HL)(H2O) ( 2 ) has been found to rearrange in DMF solution into a crystallographically solved octahedral complex, CoL1(H2O)2 ( 7 ) [where H2L1 is the symmetrical Schiff base ligand N,N′‐(1,2‐phenylene)‐bis(5‐nitro‐3‐hydroxysalicylidenimine)]. A hydrolysis mechanism is discussed to explain this rearrangement. |
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| Keywords: | Coordination chemistry Schiff bases Amides Electrochemistry |
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