The Determination of Proton Affinity for Oxygen-Containing Molybdenum Clusters by the Method of Ion Cyclotron resonance
Russian Journal of Physical Chemistry A
, E-ISSN: 1531-863X
Boreskov Institute of Catalysis SB RAS
Several oxygen-containing molybdenum clusters MoxOy (x = 1-3, y = 1-9) were prepared in a Knudsen cell combined with an ion trap. The reactions of the clusters with C-1-C-4 protonated alcohols and the ammonium ion were studied by ion cyclotron resonance. The upper and lower proton affinity limits determined for the neutral oxygen-containing molybdenum clusters equaled PA(MoO) < 180, PA(Mo2O4, Mo2O5, Mo3O8) = 188 +/- 8, PA(MoO2)= 202 +/- 5, and PA(MoO3, Mo2O6, Mo3O9) > 207 kcal/mol.