“…This p overlap has been experimentally demonstrated [4,5] to displace the Fp moiety along the olefin face toward the remaining olefinic carbon (as in II, Eq. (2)), thereby activating [4] displacement is not a prerequisite for nucleophilic substitution chemistry on the coordinated olefin [6], limited displacement has been observed (both experimentally and theoretically) to facilitate substitution at the site of heteroatom substitution [4,[7][8][9] ð2Þ When the entering nucleophile is an alcohol (or alkoxide), the unsymmetric dialkoxy intermediate product results in a competition between similar p donors.…”