Abstract
Superalkali metal clusters as the potential building blocks of nanostructured materials have excellent nonlinear optical properties. In the present study, the structural and electronic properties of small LinCl (0,1+) (n = 1–7) clusters are investigated by the diffusion Monte Carlo method for the first time. We calculate the total ground state energy, ionization potential, binding energy, dissociation energy, and second difference in energy. We also analyze the contribution of electron correlation effects to the electron properties of the clusters. The DMC results of ionization potentials are more consistent with the experimental values. In addition, there is an odd–even alternation phenomenon that Li3Cl, Li5Cl, and Li7Cl are more stable, while Li2Cl+, Li4Cl+, and Li6Cl+ are more stable. The successful application of the quantum Monte Carlo (QMC) method on the small LinCl (0,1+) (n = 1–7) clusters implies that QMC may serve as a feasible tool to investigate the electronic properties of other superalkli metal clusters.
Published Version
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