Directed one-pot syntheses of enantiopure dinuclear silver(i) and copper(i) metallo-supramolecular double helicates

Autor:	Nathaniel W. Alcock, Laura J. Childs, Jacqueline Hamblin, Michael J. Hannon
Rok vydání:	2001
Předmět:	inorganic chemicals Circular dichroism Chemistry Stereochemistry Supramolecular chemistry chemistry.chemical_element General Chemistry Copper chemistry.chemical_compound Enantiopure drug Hexafluorophosphate Polymer chemistry Proton NMR Enantiomer Chirality (chemistry)
Zdroj:	Journal of the Chemical Society, Dalton Transactions. :164-169
ISSN:	1364-5447 1472-7773
DOI:	10.1039/b106987j
Popis:	Enantiopure dinuclear silver(I) double helicates were prepared in simple one-pot reactions from commercially available starting materials and the pure complexes isolated as the hexafluorophosphate salts. The (R),(+) and (S),(−) enantiomers of 1,1′-binaphthalene-2,2′-diamine were used as spacer groups and reacted with pyridine-2-carbaldehyde to form chiral didentate imine ligands. These chiral ligands predetermine the chirality of the helicates: the R spacer gives a P helicate and the S spacer an M helicate. The dinuclear double helical structures are confirmed by single crystal X-ray analysis and their persistence in solution is supported by inter-strand NOE data. Enantiopure copper(I) dinuclear species were also prepared by similar one-pot procedures and analysed by 1H NMR, mass spectrometry and circular dichroism.
Databáze:	OpenAIRE
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