Figure 5
Calculated structures of PPh3 (left) and PPh4+ (right). P—C bond distances: 1.851–1.852 Å (PPh3) and 1.812 Å (PPh4+); C—P—C bond angles = 101.7° (PPh3) and 110.3° (PPh4+). The bond distances and angles are nearly identical to those obtained experimentally by single-crystal XRD (Alcock et al., 1985; Dunne & Orpen, 1991). |