Synthetic Analogs of the Active Sites of Iron-Sulfur Proteins. XI. Synthesis and Properties of Complexes Containing the Fe 2S 2 Core and the Structures of Bis[o-xylyl- alpha ,alpha,-dithiolato- ma -sulfido-ferrate(III)] and Bis[p-tolthiolato- m -sulfido-ferrate(III)]Dianions (with J. J. Mayerle, B. V. DePamphilis, J. A. Ibers, and R. H. Holm) J. Am.Chem. Soc. 1975, 97, 1032-1045.