D. A. Evans, K. Scheidt Carbocations: Structure Chem 206 668A 1432A 1408A 1432A 1491A 1442A178 1446A 1210° 1.505A 1439A 121.2 T. Laube,JAcs1993,115,7240 reference structure 1342A CSP2-Csp2 bond length rence structure1.508 Å 1.342 Å 1.505 Å Cl Cl Cl SbF5 Cl Cl Cl Cl SbClF5 – F Me Ph Me SbF5 C Ph Me Me SbF6 – D. A. Evans, K. Scheidt Chem 206 + + + + + T. Laube, JACS 1993, 115, 7240 1.408 Å 1.491 Å 1.432 Å 1.371 Å 122 ° + 1.446 Å 1.439 Å 1.442 Å 121.0 ° 121.2 ° 117.8 ° + 1.432 Å 1.422 Å 1.725 Å 1.668 Å reference structure: CSP3–Csp2 bond length reference structure: CSP2–Csp2 bond length Carbocations: Structure