Structural characterization, reactivity, and vibrational properties of silver clusters: a new global minimum for Ag16
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Rodríguez-Kessler, Peter L.
Rodríguez-Domínguez, Adán R.
MacLeod Carey, Desmond
In the present work, the lowest energy structures and electronic properties of Agn clusters up to n = 16 are investigated using a successive growth algorithm coupled with density functional theory calculations (DFT). In the literature, a number of putative global minimum structures for silver clusters have been reported by using different approaches, but a comparative study for n = 15-16 has not been undertaken so far. Here, we perform a comparative study using the PW91/cc-pVDZ-PP level to more precisely determine the optimal configuration. For Ag15, the most stable configuration is a four layered 1-4-6-4 stacking structure with C2v symmetry. For Ag16 a new most stable form is found with a 1-4-2-5-1-3 stacking structure in the singlet state, slightly more stable than the putative global minimum reported. By means of the electrostatic potential, the new putative global minimum has been found to be more reactive, and the active sites of the clusters were identified and confirmed with the interaction energy. The electronic and vibrational properties are found to be in good agreement with the available experimental data. Theoretical data on the infrared spectra of the clusters is also provided.
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Reply to ‘Comment on “Structural characterization, reactivity, and vibrational properties of silver clusters: A new global minimum for Ag16”’ by P. V. Nhat, N. T. Si, L. V. Duong and M. T. Nguyen,Phys. Chem. Chem. Phys., 2021,23, DOI: D1CP00646K (2021) Rodríguez-Kessler, P. L.; Rodríguez-Domínguez, Adán R.; MacLeod-Carey, Desmond; Muñoz-Castro, Alvaro (Royal Society of Chemistry, 2021-06-14)Recently, P. V. Nhatet al., have discussed and commented on our article (DOI: 10.1039/D0CP04018E) for the case of the most stable structure of Ag15. They have found a new most stable structure (labeled as 15-1) in comparison ...
Exploring the Size-Dependent Hydrogen Storage Property on Ti-Doped Bn Clusters by Diatomic Deposition: Temperature Controlled H2 Release (2021) Rodríguez-Kessler, P. L.; Rodríguez-Domínguez, Adán R.; MacLeod-Carey, Desmond; Munõz-Castro, Alvaro (John Wiley and Sons Inc, 2021)The hydrogen storage properties of Ti-doped Bn ((Formula presented.)) clusters are investigated by using the “diatomic deposition method” with further evaluation by density functional theory computations. The results show ...
ArticleRodríguez-Kessler P.L.; Muñoz-Castro A.; Alonso-Dávila P.A.; Aguilera-Granja F.; Rodríguez-Domínguez A.R. (Elsevier Ltd, 2020)