Takudrei

167
Supramolecular M4L4 tetrahedra based on triangular acylhydrazone catechol ligands

M. Albrecht, Y. Shang, T. Rhyssen, J. Stubenrauch, H. D. F. Winkler, C. A. Schalley— 2012

The ligands 1-H6 and 2-H6 are prepared by condensation of the triangular triamines 5 and 2,3-dihydroxybenzoic acid hydrazide 7. The ligands form container-type tetrahedral coordination compounds Mx [(1 or 2)4M′4] (M = Li, Na, K; M′ = Ti, x = 8; M′ = Ga, x = 12). The complexes are characterized by NMR spectroscopy and ESI mass spectrometry. Despite the relatively labile acyl hydrazone unit, the complexes show high stability in water. Ligand 3-H6 is prepared from the trisacyl hydrazide 8 and 2,3-dihydroxybenzaldehyde 9 but does not form well-defined coordination compounds with gallium(III) or titanium(IV) ions.

Title167
Supramolecular M4L4 tetrahedra based on triangular acylhydrazone catechol ligands
AuthorM. Albrecht, Y. Shang, T. Rhyssen, J. Stubenrauch, H. D. F. Winkler, C. A. Schalley
Date20120307
IdentifierDOI 10.1002/ejoc.201101725
Source(s)
CitationEur. J. Org. Chem. 2012, 2422-2427