Rh. Zhang et al., SYNTHESIS AND CHARACTERIZATION OF MIXED-LIGAND COMPLEXES OF YTTRIUM AND LANTHANIDE(III)-BIS(PHENYLSULPHINYL)PROPANE AND BIPYRIDYL, Polyhedron, 14(5), 1995, pp. 629-633
A series of novel mixed ligand complexes of yttrium and lanthanide(III
) ions with bis(phenylsulphinyl)propane and bipyridyl have been synthe
sized. The complexes were assigned the formula [Ln(bphsp)(3)(bipy) (Cl
O4)](ClO4)(2) (bphsp = bis(phenylsulphinyl)propane; bipy = bipyridyl;
Ln = La, Pr, Eu, Gd, Tb, Ho, Er, Yb, Y) and [Nd(bphsp)(3)(bipy)(ClO4)]
(ClO4)(2) . 2H(2)O on the basis of analytical, conductance and spectra
l (IR, electronic) and magnetic data. In all cases, the lanthanide ion
bonds to the sulphoxide moiety via the oxygen atoms and to the bipy v
ia the nitrogen atom. The coordination number of the complexes may be
nine. The spectral strength for emission spectrum (D-5(0) --> F-7(2))
of Eu(bphsp)(3)(bipy)(ClO4)(3) was increased by the coordination of bi
py.