Chiral recognition and selection during the self-assembly process of protein-mimic macroanions.
Nat Commun
; 6: 6475, 2015 Mar 10.
Article
em En
| MEDLINE
| ID: mdl-25756393
ABSTRACT
The research on chiral recognition and chiral selection is not only fundamental in resolving the puzzle of homochirality, but also instructive in chiral separation and stereoselective catalysis. Here we report the chiral recognition and chiral selection during the self-assembly process of two enantiomeric wheel-shaped macroanions, [Fe28(µ3-O)8(Tart)16(HCOO)24](20-) (Tart=D- or L-tartaric acid tetra-anion). The enantiomers are observed to remain self-sorted and self-assemble into their individual assemblies in their racemic mixture solution. The addition of chiral co-anions can selectively suppress the self-assembly process of the enantiomeric macroanions, which is further used to separate the two enantiomers from their mixtures on the basis of the size difference between the monomers and the assemblies. We believe that delicate long-range electrostatic interactions could be responsible for such high-level chiral recognition and selection.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Tartaratos
/
Bário
/
Materiais Biomiméticos
/
Ferro
Idioma:
En
Ano de publicação:
2015
Tipo de documento:
Article