Hsiao-Han Chuang

 Education

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Selected Papers

Current Studies

Free O-H Anharmonic Stretching Motions in H+(CH3OH)1-3 with or without Attached Argon

The free O-H stretching of H+(CH3OH)1-3 clusters with/without argon have been unraveled by combining Infrared Pre-Dissociation (IR-PD) spectra and multidimensional normal mode analysis by Density Functional Theory (DFT) methods. Experimental IR-PD spectra have shown sharp peaks between 3200-3800 cm-1, and these peaks shift when the size of cluster is varied, as well as increasing the number of argon attachment. We benchmarked several DFT and ab initio methods and the results show the free O-H stretching modes can well described by using a few selected normal mode coordinates with standard DFT methods.