Electrochemical synthesis of cobalt, nickel, copper, zinc and cadmium complexes with N[(2-hydroxyphenyl)methylidine]-N′-tosylbenzene-1,2-diamine. The crystal structures of {(1,10-phenanthroline)[N-(2-oxophenyl)methylidine]-N-tosylbenzene-1,2-diaminato} nickel(II) and {(1,10-phenanthroline)[N-(2-oxophenyl)methylidine]-N′-tosylbenzene-1,2- diaminato}copper(II)

Mar Bernal, José A. García-Vázquez, Jaime Romero, Cristina Gómez, María L. Durán, Antonio Sousa, Antonio Sousa-Pedrares, David J. Rose, Kevin P. Maresca, Jon Zubieta

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Abstract

The electrochemical oxidation of cobalt, nickel, copper, zinc or cadmium anodes in an acetonitrile solution containing N[(2-hydroxyphenyl)methylidine]-N′-tosylbenzene-1,2-diamine (H2L) yielded compounds of general formula [ML]. When 1,10-phenanthroline (phen) or 2,2′-bipyridine (bipy) is added to the cell, mixed ligand complexes are obtained. The crystal structures of {(1,10-phenanthroline)[N-(2-oxophenyl)methylidine]-N′-tosylbenzene-1,2- diaminato}nickel(II) (1) and {(1,10-phenanthroline)[N-(2-oxophenyl)methylidine]-N′-tosylbenzene-1,2- diaminato}copper(II) (2) were determined by X-ray diffraction. Compound 1 consists of a binuclear [Ni2L21(phen)2] complex with phenolic oxygen atoms bridging both nickel atoms. Each nickel atom is in a distorted octahedral [NiN4O2] environment. Compound 2 is monomeric, with the copper atom in a [CuN4O] distorted square pyramidal geometry. The electronic, IR and NMR spectra of the complexes are discussed and related to the structure.

Original languageEnglish (US)
Pages (from-to)39-47
Number of pages9
JournalInorganica Chimica Acta
Volume295
Issue number1
DOIs
StatePublished - Nov 15 1999

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Keywords

  • Amide complexes
  • Cobalt complexes
  • Copper complexes
  • Crystal structures
  • Electrochemistry

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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