Laser-desorption mass spectrometry of [Ru6C(CO)17] and its derivatives: cluster aggregation in the gas phase

Abstract

The ultraviolet-laser-desorption mass spectra of [Ru₆C(CO)₁₇], [Ru₆C(CO)₁₄(η⁶-C₆H₅Me)] and [Ru₆C(CO)₁₂(η⁶-C₆H₄Me ₂)(µ-C₆H₇Me)] have been obtained. Positive-ion mass spectra showed abundant singly-charged species: peaks corresponding to the successive loss of carbonyl ligands from an otherwise intact parent cluster and high molecular-weight clusters formed from the aggregation of intact hexaruthenium cores.