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Research Article Open access CC BY 4.0

Cluster Ions in Vapour over Calcium Dichloride: Theoretical Study of Geometrical Structure and Vibrational Spectra

Ibrahim Moustapher, Tatiana P. Pogrebnaya, Alexander M. Pogrebnoi

Current Journal of Applied Science and Technology · pp. 1–14 · Published 5 Oct 2015

10.9734/BJAST/2016/21810

Abstract

Geometrical structure and vibrational spectra for CaCl3–, Ca2Cl3+, Ca3Cl5+, Ca4Cl7+, and Ca5Cl9+ ions have been studied by employing density functional theory and the second order Møller–Plesset perturbation theory. The equilibrium geometrical structures are as follows: the planar D3h for CaCl3–, triple-bridged bipyramid D3h for Ca2Cl3+, hexa-bridged bipyramid D3h for Ca3Cl5+, polyhedral C2v for Ca4Cl7+, and polyhedral D3h for Ca5Cl9+. No isomers have been confirmed to exist.

Calcium chloride cluster ions DFT MP2 geometrical parameters fundamental frequencies.

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