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Relph, R.A.; Bopp, J.C.; Roscioli, J.R.; Johnson, M.A., Structural characterization of (C[sub 2]H[sub 2])[sub 1--6]+] cluster ions by vibrational predissociation spectroscopy, J. Chem. Phys., 2009, 131, 11, 114305, https://doi.org/10.1063/1.3212595 . [all data]