The infrared predissociation spectra of Cl-center dot H2O center dot Ar-n (n=1-5): experimental determination of the influence of Ar solvent atoms

Kelley JA; Weber JM; Lisle KM; Robertson WH; Ayotte P; Johnson MA

Chemical Physics Letters, Vol.327, No.1-2, 1-6, 2000

DOI10.1016/S0009-2614(00)00827-7 Export Citation

The infrared predissociation spectra of Cl-center dot H2O center dot Ar-n (n=1-5): experimental determination of the influence of Ar solvent atoms

Kelley JA, Weber JM, Lisle KM, Robertson WH, Ayotte P, Johnson MA

We establish the argon solvent size dependence of the Cl-. H2O . Ar-n predissociation spectra, and discuss the discrepancies between previously reported predissociation spectra of the Cl-. H2O and Cl-. H2O . Ar-3 complexes [Choi et al., J. Phys. Chem. A 102 (1998) 503; Ayotte et al., J. Am. Chem. Sec. 120 (1998) 12361]. The argon-induced shift in the similar to 3130 cm(-1) ionic H-bonded OH stretching band, calculated to be large (> 30 cm(-1)/Ar red-shift) by Satoh and Iwata [Chem. Phys. Lett. 312 (1999) 522], is found to be quite small (IHB band center = 3128 +/- 3 cm(-1) for 1 less than or equal to n less than or equal to 5). We compare this result with similar behavior displayed by the bare versus argon-solvated bromide monohydrate.