Abstract
Abstract Tetraethyldithioxamide (Et 4 -DTO) shows in solution high energy barriers either for chiral torsion around CC axis or for achiral torsion around CN axis. A chiral CC axis was also evidenced by a crystal structure determination on a single crystal, which showed clearly the right absolute configuration in the P4 3 space group. 1 H-NMR signals of the prochiral probe -C 2 H 5 in Et 4 -DTO provided unequivocal evidence for the persistence of the chiral CC axis also in co-ordination and organometallic complexes of platinum(II) of the chelate ligand Et 4 -DTO.
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