ELECTRON-SPIN-RESONANCE STUDY OF THE COBALT(II) SPECIES FORMED AFTER ROOM-TEMPERATURE PHOTOLYSIS OF AQUA-(SEC-BUTYL)BIS(DIMETHYLGLYOXIMATO)COBALT(III) IN THE PRESENCE OF N-DONOR BASES

• Tipo: Artigo em Revista Científica Internacional
• Data: 1994

Autores

ARCOS, T (Autor) Outra; DECASTRO, B (Autor) FCUP; FERREIRA, MJ (Autor) Outra; RANGEL, M (Autor) ICBAS; RAYNOR, JB (Autor) Outra

Revista

Título: Journal of the Chemical Society. Dalton Transactions

Páginas: 369-377

ISSN: 1472-7773

Editora: Royal Society of Chemistry

Indexação

ISI Web of Knowledge - 13 Citações

Scopus - 15 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Química

Outras Informações

ID Authenticus: P-001-KDA

DOI: 10.1039/dt9940000369

Abstract (EN): The cobalt(tl) species resulting from room-temperature photolysis of aqua(sec-butyl)bis(dimethyl-glyoximato)cobalt(III) [Co-III(Hdmg)(2)Bu(s)(H2O)] solutions in the presence of various amounts of each of 27 different N-donor bases L were studied by electron spin resonance spectroscopy and the ESR spectra compared, when possible, with those of irradiated solutions of the corresponding [Co-III(Hdmg)(2)Bu(s)(L)] compounds. From the ESR results. the bases could be grouped according to the position of the substituents. Both base strength and steric effects seem to play a role in the formation of 1:1 and 1:2 cobalt(II) adducts although no definite correlation between the ESR parameters determined for the various species and basicity was found.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 9