Tetrathiooxalic acid

Multifunctional dithiolene ligands have been used to prepare binuclear as well as polymeric complexes. Some examples of this type of complex were already mentioned above (25 and 41) and involve the ligands benzenetetrathiol (51) or its alkyl ethers,78 the tetrathiosquaric acid (52), ethylenetetrathiol (53) and tetrathiooxalic acid (54) and its Se analog. The two-electron difference in oxidation state between (53) and (54) is much the same as that discussed for the parent dithiolene ligand. Crystallographic results (see Section 16.5.3.1) point out the equivalence of the latter two ligands. 

Tetraphosphine ligands, 995 Tetrapyridyls metal complexes, 91 geometry, 91 Tetrapyrroles metal complexes, 79 T etraselenoether metal complexes, 666 Tetrasulfur tetranitride metal complexes, 799 Tetrathiolane, bis(imino)-metal complexes, 591 Tetrathiooxalic acid metal complexes, 585, 606 Tetrathiosquaric acid metal complexes, 606 Tetrazole, 2-methyl-metal complexes, 77 Tetrazole, pentamethyl-metal complexes, 77 Tetrazoles metal complexes, 76 pK,ll... 

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