Dicatechol cis-dioxomolybdenum(VI): a building block for a lithium cation templated monomer-dimer equilibrium.
Dinuclear helicate-type complexes form from 3-carbonyl catechol derivatives and MoO2 units. The two monomeric subunits are non-covalently bound through templating Li+ ions. The monomeric and dimeric complexes as well as a hydrolysis product have been investigated in the solid state by X-ray crystallography, in solution by NMR experiments, and in the gas phase by ESI mass spectrometry. Dimerization constants can easily be extracted from NMR experiments. A particular property of these complexes is the mutual homochiral recognition between the two halves of the dimers which only occurs between homochiral monomers.
Albrecht
Markus
M
Institut für Organische Chemie der RWTH-Aachen, Landoltweg 1, 52074, Aachen, Germany. markus.albrecht@oc.rwth-aachen.de
Baumert
Miriam
M
Klankermayer
Jürgen
J
Kogej
Michael
M
Schalley
Christoph A
CA
Fröhlich
Roland
R