Control of the Helical Chirality in Octahedral Complexes by a Chiral Macrobicyclic Cavity Possessing Six Convergent Hydroxyl Groups

Autor:	Didier Gaude, Jean-Louis Pierre, Paul Baret, Christian Coulombeau, Virginie Beaujolais
Rok vydání:	1997
Předmět:	Circular dichroism Ligand Stereochemistry Organic Chemistry Supramolecular chemistry chemistry.chemical_element General Chemistry Catalysis Chromium Crystallography chemistry Octahedron Gallium Enantiomer Chirality (chemistry)
Zdroj:	Chemistry - A European Journal. 3:969-973
ISSN:	1521-3765 0947-6539
DOI:	10.1002/chem.19970030619
Popis:	The (aR, aR, aR) and (aS, aS, aS) enantiomers of a chiral macrobicyclic ligand with a bicapped tris(binaphthol) structure were synthesized. Complexation of gallium(III), chromium(III) and iron(III) centres in the chiral cavities of these two ligands yielded exclusively one octahedral configuration in each case: the (aR, aR, aR) enantiomer gave a A complex and the (aS, aS, aS) enantiomer a complex. These assignments were established by CD spectroscopy for chromium and iron centres and by molecular modelling.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b7677acfd8a8b0fce1d0699fbfcea5d0 https://doi.org/10.1002/chem.19970030619 Zobrazit plný text záznamu Plný text