title: A compound of iron(II), phenylbiguanide and cyanide.
abstract: A spectrophotometric investigation has been made of the red water-soluble complex of phenylbiguanide with iron(II) in cyanide medium. The complex is found to have maximum absorbance at 520 nm. Use of the extension of the Asmus method to M(s)L(m)L'(n) complexes and of Koch and Ackermann's method suggests the formula [Fc(phenylbiguanide)(CN(4))](2-) for the red compound. Anlytical procedures for the detection of iron and cyanide are proposed.
authors.affiliation: Departamento de Química Analítica, Facultad de Ciencias Químicas, Universidad de Valencia, Valencia, Spain.
authors.forename: J M
authors.initials: JM
authors.lastname: Calatayud
authors.forename: F B
authors.initials: FB
authors.lastname: Reig
authors.forename: M C
authors.initials: MC
authors.lastname: Alvarez-Coque