Ts. Lobana et N. Bala, A SOLID-STATE ESR STUDY OF MANGANESE(II) HALIDE-TRIPHENYLPHOSPHINE OXIDE COMPLEXES, Transition metal chemistry, 19(1), 1994, pp. 115-116
Ph3PO adducts with manganese(II) halides, viz. MnX2(OPPh3)2 (X = Cl or
Br) were heated for 1 h and their X-band e.s.r. spectra recorded at r
oom temperature. The chloride adduct, MnCl2(OPPh3)2 completely transfo
rmed into the symmetrised product, [Mn(OPPh3)4] [MnCl4] at 175 and 225
-degrees-C. The bromide adduct, MnBr2(OPPh3)2, which is probably a mix
ture of its nonionic and ionic forms at room temperature, showed hyper
fine coupling in the g = 2.029 region.