102850-02-2Relevant academic research and scientific papers
Diastereomerism in square-planar complexes of bivalent nickel, palladium, and platinum containing asymmetric 2-mercaptoethyl-substituted tertiary arsines and phosphines
Leung, Pak Hing,Martin, John W. L.,Wild, S. Bruce
, p. 3396 - 3400 (2008/10/08)
The racemic and optically active forms of the asymmetric bidentate (±)-(2-mercaptoethyl)methylphenylarsine, (±)-AsSH, and the racemic form of the corresponding tertiary phosphine, (±)-PSH, have been used to prepare a series of square-planar complexes of the type [M(AsS)2] and [M(PS)2] for M = Ni, Pd, or Pt. Ligand redistribution is rife in solutions of these complexes under ambient conditions, especially for the nickel and palladium derivatives of the tertiary arsine, as evidenced by facile intermolecular asymmetric transformations between racemic and meso diastereomers of the same complex. Furthermore, it has been shown that although stereoelectronic factors govern the distribution of product diastereomers in solution, these effects are frequently outweighed by lattice effects in isolated solids, where a single diastereomer of a particular complex can be isolated by a crystallization-induced disequilibration.
