R. Claramunt, P. Cornago, M. Cano
Jul 1, 2003
Citations
0
Influential Citations
30
Citations
Journal
European Journal of Inorganic Chemistry
Abstract
The 3,5-bis(4-butoxyphenyl)pyrazolyl group (Pzbp2) has been used as a building block for mono- and polymetallic derivatives of 2,4,6-tris[3,5-bis(4-butoxyphenyl)pyrazol-1-yl]-1,3,5-triazine (TPzbp2Tz, 1), 2-[3,5-bis(4-butoxyphenyl)pyrazol-1-yl]pyridine (Pzbp2Py, 2), and 3,5-bis(4-butoxyphenyl)pyrazole (HPzbp2, 3) ligands. The synthesis and characterisation of the new hexadentate ligand 1 are described, together with the chemistry of its metal complexes containing [Pd(η3-C3H5)]+ and [Au(PPh3)]+ fragments. The related complexes containing Pzbp2Py (2) were also studied and their structural characteristics were compared to those of the TPzbp2Tz species. The role of the counter-ion on the supramolecular assembly of complexes containing the HPzbp2 ligand 3 was made clear by the X-ray structures of [Pd(η3-C3H5)(HPzbp2)2](BF4) and [Au(HPzbp2)(PPh3)](NO3). Hydrogen bonds and/or bonding interactions are responsible for pseudohelical one-dimensional polymers or supramolecular columnar arrays, respectively. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)