The d0, d1, and d2 Configurations in Known and Unknown Tetrathiometal Compounds MS4n- (M = Mo, Tc, Ru; W, Re, Os). A Quantum Chemical Study. Inorganic Chemistry, (38)26:6101--6105, 1999. [PUMA: calcn;ruthenium energetic calcn;thiometalate mol metal calcn;technetium tetrathio structure calcn;molybdenum calcn;rhenium calcn;osmium calcn calcn;transition sulfide metalate calcn;tungsten electronic calcn;tetrathiometalate]