Resumo

ALEGRIA, Elisabete C.B.A. et al. Comparative Electrochemical Behaviour of the Complexes trans-[Mo(NCN){NCNC(O)R}(dppe)₂]Cl (R = Et or Ph) and trans-[Mo(NCN)CI(dppe)₂][BF₄] . Port. Electrochim. Acta [online]. 2004, vol.22, n.1, pp.19-23. ISSN 0872-1904.

The bis(cyanoimide) complex trans-[Mo(NCN)₂(dppe)₂] (dppe = Ph₂PCH₂CH₂PPh₂) is susceptible of electrophilic attack to form the acylated and aroylated derivatives trans-[MO(NCN){NCNC(O)R}(dppe)₂]Cl (R = Et 2a or Ph 2b). Herein, we report a preliminary study on the electrochemical behaviour of complexes 2 and the derivative trans-[Mo(NCN)Cl(dppe)₂][BF₄] 3, as investigated by cyclic voltammetry (CV) and controlled-potential electrolysis (CPE), what has allowed a comparison of the electron-donor ability of the ligands.

Palavras-chave : Molybdenum complexes; cyanoimide complexes; acylation; aroylation; derivative; electrophilic attack; electron richness.

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