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Mononuclear Metal Phosphinates with Ancillary Pyrazole Ligands. Synthesis and X‐ray Crystal Structures of [M(Ph 2 PO 2 ) 2 (3,5‐DMPZ) 2 ] (M = Co, Zn)
Author(s) -
Chandrasekhar Vadapalli,
Boomishankar Ramamoorthy,
Sasikumar Palani,
Nagarajan Loganathan,
Cordes A. Wallace
Publication year - 2005
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.200500118
Subject(s) - denticity , chemistry , pyrazole , triethylamine , phosphinate , supramolecular chemistry , metal , stereochemistry , crystallography , intermolecular force , crystal structure , medicinal chemistry , molecule , organic chemistry , fire retardant
The reaction of diphenylphosphinic acid, [Ph 2 P(O)(OH)], with CoCl 2 or ZnCl 2 and 3,5‐dimethylpyrazole (DMPZ) in the presence of triethylamine affords the mononuclear phosphinates, M(Ph 2 PO 2 ) 2 (DMPZ) 2 (M= Co( 1 ), Zn( 2 )). The molecular structures of 1 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 π–π interactions in 1 and 2 result in the generation of two dimensional supramolecular polymeric sheets in the solid state.