Organometallic compounds

The configurational instability of triorganotin halides RR′RSnX, which is a second order process with respect to added nucleophiles (S) such as pyridine, can be rationalized in terms of a two-step process involving an attack by S at tin to displace X, followed by a rate-determining attack of the second S molecule at the metal atom to give an achiral petacoordinate-complex. This conclusion follows the estimation of the equilibrium constant of the...