Each of the title compounds, C14H16P+.I- (1) and C14H16P+.Br- (2), cry
stallized with the typical tetrahedral phosphorus center [the CH3-P-CH
3 angle is 109.0 for (1) and 110.3 degrees for (2)] having no interact
ions with the associated anion. As expected, the two compounds are iso
structural and essentially identical.