Group 7 Element Compounds Mn, Tc, Re

No technetium complexes with chalcogenocarboxylato ligands are known. 

The reaction of Re(CO)5Br with PhCOSH gives the dimeric complex 30, where the thiocarboxyl sulfur atom is coordinated to the two rhenium atoms [99], whereas heating with cesium thiobenzoate in ethanol leads to the anion complexes 31 in which the S-thiobenzoato ligands are triply bridged to the two rhenium atoms [213]. In addition, reaction with Cs2(SOC-COS) affords (OC)5Re(SOC-COS)Re(CO)5 [326], the structure of which resembles that of the corresponding manganese complex 28. 

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