Nikol, H. and Becht, A. and Vogler, Arnd
Photoluminescence of Germanium(II), Tin(II) and Lead(II) Chloride Complexes in Solution.
Inorganic Chemistry 31 (15), pp. 3277-3279.
The absorption and emission spectra of GeC13-, SnC13-, PbC13-, and PbC142- in acetonitrile were recorded. In
addition, emission quantum yields and lifetimes were determined. The emitting excited states are of the metalcentered
sp type and originate from the 3P state of the free s2 ions. It is suggested that the complex ions which have
trigonal-pyramidal C3” (MC13-) and seesaw C2, (PbC1d2-) structures in the ground state rearrange toward trigonalplanar
D3h and tetrahedral Td geometries, respectively, in their sp excited states.