Dehydrogenation of Benzene on Liquid

The reactions of benzene on Al100 + have been investigated as a function of cluster temperature (300−1100 K) and relative kinetic energy (1−14 eV) by low-energy ion-beam methods and mass spectrometry. Benzene chemisorbs on both solid and liquid aluminum clusters to generate Al100C6D6 . A series of Al100−n + (n = 1, 2, 3, ...) products was also observed. As the cluster temperature was raised above the melting temperature of Al100 , the Al100C6D6 + product dehydrogenates to form Al100C6D4 , Al100C6D2 , and Al100C6 . The degree of dehydrogenation was measured as a function of temperature. Very little Al100C6D2 + was observed, suggesting that the losses of the second and third D2 molecules are coordinated.