Defining the stoicheiometry of a subcarbonylmetal guest using mixed vibrational isotope labelling techniques
Abstract
The tricarbonyl stoicheiometry, structure, and anchoring site geometry of M(CO)3–M*56Y which are cleanly generated via the mild vacuum thermal decarbonylation of M(CO)6–M*56Y (where M = Cr, Mo, or W; M*= Li, Na, K, Rb, or Cs; Y = dehydrated zeolite Y), have been unequivocally established for the first time from analysis of their M(12CO)n(13CO)3-n–M*56Y vibrational isotope patterns.