Complexes of biologically important ligands. I. Ternary complexes of nickel(II) comprising 1,10-o-phenanthrolineazosulfonamide derivatives and alkyldithiophosphates

Abstract

Abstract5-[p-(R-Sulfonyl)phenylazo]-1,10-o-phenanthroline (L) and its octahedral complexes of the type [Ni(R2dtp)2(L)] (where R2dtp = diethyl-or dipropyldithiophosphate) with the core NiN2S4 have been prepared and characterized by spectral, magnetic, and thermogravimetric methods. The thermal decomposition mechanism of the compounds was proposed and the kinetic parameters of decomposition were calculated making use of the Coats—Redfern and Horowitz—Metzger equations.

6-[(4-Hydroxyphenyl)diazenyl]-1,10-phenanthrolin-1-ium chloride monohydrate

“…For strongly absorbing Ru(II) complexes containing azo-dye ligands, see: McGuire et al (1998); Malinowski & McGuire (2003); For the pK a of the phenol portion of these complexes, see: Zhang (1999). For the synthesis and characterization of 1,10-phenanthrolineazosulfonamide derivatives and their ternary Ni(II) complexes, see: Aly et al (2006). For the synthesis of 5-nitro-1,10phenanthroline, see: Amouyal et al (1990) and of 5-amino-1,10-phenanthroline, see: Nasielski-Hinkens et al (1981).…”