G. Geimachy, S. Ghammamy, A. Mehrani, T. Banibairami and H. Tavakol, Ionic Liquids: Synthesis and Characterisation of Triphenylphosphonium pentachlorohalophosphate (C6H5)3PH+[PCl5X]-, (X=F, Cl, I) , (TPPPCHP) 12^th Iranian Inorganic Chemistry Seminar, Rasht, Iran, September 2010.