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. Author manuscript; available in PMC: 2008 Oct 9.
Published in final edited form as: J Org Chem. 2006 Dec 22;71(26):9824–9830. doi: 10.1021/jo0620056

TABLE 1.

Effect of para Substituents on the Calculated Gas-Phase Electron Density on Phosphorus in Tetrahedral Intermediate 4

graphic file with name nihms61668t1.jpg
X
Parameter CI H OMe
σp +0.23 0.00 −0.27
P, charge +0.131 +0.062 +0.044
N, charge −0.342 −0.326 −0.322