@article {1311221, title = {Pseudorotation in XPF4}, journal = {J. Am. Chem. Soc.}, volume = {96}, year = {1974}, note = {64}, pages = {5385-5397}, author = {Eisenhut, M. and Mitchell, H.L. and Traficante, D.D. and Kaufman, R.J. and Deutch, J. and Whitesides, G. M.} }