Title of article :
Hydrogen-Bonded Phosphorous Acids. Synthesis and Structure of Imidazolium-Containing Salts of Hydrogenphosphonate and Phenylphosphonate
Author/Authors :
Abu-Salem, Qutaiba University of Al al-Bayt - Faculty of Science - Department of Chemistry, Jordan , Sweidan, Kamal University of Jordan - Faculty of Science - Department of Chemistry, Jordan , Mallah, Eyad Petra University - Faculty of Pharmacy and Medical Sciences, Jordan , Joshi, Rajendra Max Planck Institute for Biological Cybernetics, Germany , Mubarak, Mohammad S. University of Jordan - Faculty of Science - Department of Chemistry, Jordan , Steinmann, Manfred University of Tübingen - Institute for Inorganic Chemistry, Germany , Voelter, Wolfgang University of Tübingen - Interfacultary Institute of Biochemistry, Germany
Abstract :
Reaction of phosphorous acids with 1,3-diisopropyl-4,5-dimethylimidazol-2-ylidene (1) and 1,3-dicyclohexyl-4,5-dimethylimidazol-2-ylidene (2) led to the formation of the hydrogen- bonded salts, [H(4,5-Me)(iPr)2Im]H2PO3 (5) and [H(4,5-Me)(Cy)2Im]PhPO3H (6) (Cy = Cyclohexyl) in high yields. All were characterized by NMR, IR spectroscopy and single crystal X- ray diffraction. Salts 5 and 6 crystallize in the monoclinic crystal system space groups. The X-ray structures of 5 and 6 reveal unsymmetrical and symmetrical dimers of the phosphoryl anion groups linked to each other via intermolecular O-H···O hydrogen bonds, respectively, and to the imidazolium cations through almost linear monofunctional C-H···O hydrogen bonds.
Keywords :
Substituted Imidazolium , Hydrogen Bond , Phosphorus Acids , Crystal Structures.
Journal title :
Jordan Journal of Chemistry
Journal title :
Jordan Journal of Chemistry
