The chlorides, bromides, and iodides of divalent germanium and tin have been allowed to react with bipyridyl and 1,10-phenanthroline and complexes of composition MX 2,L have been isolated. Reaction with molten phenanthroline gave MX 2,2phen with the halides GeI 2,SnBr 2, and SnI 2. The monodentate ligands pyridine, α-picoline, γ-picoline, and morpholine gave tin(II) complexes, SnX 2, 2L, but N-methyl morpholine gave only 1:1 complexes. GeI 2 yields GeI 2,2py. The bipyridyl, phenanthroline, and pyridine complexes dissolve reversibly in pyridine to give nonconducting solutions. Spectra (200–50,000 cm −1) have been recorded and their significance is discussed. The evidence suggests that the complexes are polymeric with metal-halogen bridges.