Mononuclear metal phosphinates with ancillary pyrazole ligands. Synthesis and X-ray crystal structures of [M(Ph2PO2)(2)(3,5-DMPZ)(2)] (M = Co, Zn)
by Chandrasekhar, V.; Boomishankar, R.; Sasikumar, P.; Nagarajana, L.; Cordes, A. W.
The reaction of diphenylphosphinic acid, [Ph2P(O)(OH)], with CoCl2 or ZnCl2 and 3,5-dimethylpyrazole (DMPZ) in the presence of triethylamine affords the mononuclear phosphinates, M(Ph2PO2)(2)(DMPZ)(2) (M= Co(1), Zn(2)). The molecular structures of I and 2 reveal a tetrahedral environment around the metal. The phosphinate ligands are monoanionic and bind to the metal in a monodentate manner, while the pyrazole ligands act as neutral monodentate ligands. Intermolecular C-H-O and pi-pi interactions in 1 and 2 result in the generation of two dimensional supramolecular polymeric sheets in the solid state.
- Journal
- Zeitschrift für Anorganische und Allgemeine Chemie
- Volume
- 631
- Issue
- 13-14
- Year
- 2005
- Start Page
- 2727-2732
- URL
- https://dx.doi.org/10.1002/zaac.200500118
- ISBN/ISSN
- 1521-3749; 0044-2313
- DOI
- 10.1002/zaac.200500118