3 years ago

Creation of Optically Pure Crystals from a Meso-Type Gold(I) Metalloligand with d- and l-Amino Acids: A Coordination Trick

Creation of Optically Pure Crystals from a Meso-Type Gold(I) Metalloligand with d- and l-Amino Acids: A Coordination Trick
Takumi Konno, Takuma Itai, Naoto Kuwamura, Tatsuhiro Kojima
Optically pure crystals from a meso-compound with d- and l-amino acids have been created for the first time. The reactions of a meso-digold(I) complex containing both d- and l-penicillamine with MII (NiII, ZnII) yielded neutral AuI2MII complexes, which are chiral (C vs. A) at the metal centers. By spontaneous resolution, AuI2MII complexes gave optically pure C- and A-crystals, showing the creation of homochirality from meso-digold(I) complex and achiral M2+ through crystallization; that is the “Coordination Trick” in this case. Such a phenomenon has not been observed for cationic AuI2CoIII complex, giving a racemic compound containing both C- and A-isomers. More information can be found in the Communication by T. Konno et al. (DOI: 10.1002/chem.201703350).

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/chem.201704086

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