[.sup.17.O] solid-state NMR spectroscopic studies of the involvement of water vapor in molecular sieve formation by dry-gel conversion

A study conducted shows that the [.sup.17.O]-enriched water vapor involves during the crystallization of molecular sieves by the dry-gel conversion methods. [.sup.17.O] NMR is a sensitive technique for monitoring the role of water in the formation of molecular sieves by dry-gel conversion methods.