TY - JOUR T1 - Laser Multiphoton Dissociation Ionization of Acrolein Clusters JF - The Journal of Physical Chemistry A Y1 - 1997 A1 - Morita, Hiroshi A1 - Freitas, John E. A1 - El-Sayed, Mostafa A AB - Clusters of acrolein, C3H4O, are formed by supersonic expansion techniques. The acrolein clusters are ionized and decomposed by 193 nm light from an excimer laser and detected by time-of-flight mass spectrometry. The dominant channel of decomposition involves the loss of a carbon atom from all the clusters. The loss of C2, C3, and even up to C6 is also observed from larger clusters. The presence of clusters with more hydrogen atoms than expected for multiples of acrolein molecules suggests that reactions within the cluster and evaporation are important processes. The mechanisms of the dissociation routes are discussed in terms of ladder and ladder-switching processes within individual molecules within the cluster.Clusters of acrolein, C3H4O, are formed by supersonic expansion techniques. The acrolein clusters are ionized and decomposed by 193 nm light from an excimer laser and detected by time-of-flight mass spectrometry. The dominant channel of decomposition involves the loss of a carbon atom from all the clusters. The loss of C2, C3, and even up to C6 is also observed from larger clusters. The presence of clusters with more hydrogen atoms than expected for multiples of acrolein molecules suggests that reactions within the cluster and evaporation are important processes. The mechanisms of the dissociation routes are discussed in terms of ladder and ladder-switching processes within individual molecules within the cluster. PB - American Chemical Society VL - 101 SN - 1089-5639 UR - http://dx.doi.org/10.1021/jp9605010 CP - 20 N1 - doi: 10.1021/jp9605010 J1 - J. Phys. Chem. A M3 - doi: 10.1021/jp9605010 ER - TY - JOUR T1 - The Wavelength Dependence of the Rates of Internal Energy Redistribution during the Photodissociation of 3-Iodopyridine JF - The Journal of Physical Chemistry Y1 - 1995 A1 - Freitas, John E. A1 - El-Sayed, Mostafa A A1 - Hwang, Hyun Jin AB - View http://dx.doi.org/10.1021/j100019a024 for article's front page in lieu of an abstract PB - American Chemical Society VL - 99 SN - 0022-3654 UR - http://dx.doi.org/10.1021/j100019a024 CP - 19 N1 - doi: 10.1021/j100019a024 J1 - J. Phys. Chem. M3 - doi: 10.1021/j100019a024 ER -