Inorganic Chemistry, Vol.37, No.10, 2554-2562, 1998
Hydrolytic synthesis of lead oxo isopropoxides and their reaction with M((OPr)-Pr-i)(4) (M=Ti, Zr) : Comparisons and contrasts
Hydrolysis of [Pb((OPr2)-Pr-i] using selected stoichiometries yields [Pb4O(Pr-i)(6)] or [Pb6O4((OPr)-Pr-i)(4)], and stoichiometric [Pb((OPr)-Pr-i)(2)] converts [Pb6O4((OPr)-Pr-i)(4)] to [Pb4O((OPr)-Pr-i)(6)]. [Pb4O((OPr)-Pr-i)(6)] does not have the T-d structure of its (OBu)-Bu-i analogue. Reaction of electrophilic M((OPr)-Pr-i)(4) (M = Ti or Zr) with Pb4O((OPr)-Pr-i)(6) yields Pb3MO((OPr)-Pr-i)(8), by "displacement" of [Pb((OPr)-Pr-i)(2)]. However, reaction of the seemingly more accessible oxide in Pb6O4((OPr)-Pr-i)(4) with M((OPr)-Pr-i)(4) gives Pb3MO((OPr)-Pr-i)(8), together with other metal oxo alkoxides.