A novel strategy to assemble achiral ligands to chiral helical polyrotaxane structures.
Inorg Chem
; 50(14): 6521-5, 2011 Jul 18.
Article
em En
| MEDLINE
| ID: mdl-21696140
ABSTRACT
Using the achiral N,N'-bis(2-pyridylmethyl)-1,6-hexanediamine ligand bearing two end pyridyl groups as the source of conformational chirality, a novel type of TMeQ[6]-based helical polyrotaxane was prepared and characterized by X-ray crystallography and (1)H NMR spectroscopy. The chirality of the polyrotaxane was generated from twisting of the hexylidene of the N,N'-bis(2-pyridylmethyl)-1,6-hexanediamine "string" when bound within the hydrophobic cavity of TMeQ[6]. Two opposite chiral helical polyrotaxanes crystallize as a racemic compound.
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1
Base de dados:
MEDLINE
Assunto principal:
Poloxâmero
/
Ciclodextrinas
/
Rotaxanos
Idioma:
En
Ano de publicação:
2011
Tipo de documento:
Article