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Theoretical study of NO adsorption on neutral, anionic and cationic Ag 8 clusters

Theoretical study of NO adsorption on neutral, anionic and cationic Ag 8 clusters,10.1016/j.comptc.2010.11.008,Cancer Letters,Vitaly E. Matulis,Dennis

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Theoretical study of NO adsorption on neutral, anionic and cationic Ag 8 clusters  
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Density functional theory calculations have been carried out to study the process of NO adsorption on neutral, anionic and cationic Ag8 clusters. Three cluster types have been considered in our study: D2d and Td structures are the most stable isomers in gas phase and C1 structure, which has the geometry of the most stable isomer adsorbed on rutile TiO2 (110) surface. Adsorption energies, N–O bond lengths and corresponding N–O vibration frequencies have been calculated for all structures. It has been shown that in the case of NO interaction with D2d structure the corresponding adsorption energies grow in the following order: Eads(cation)<Eads(neutral)<Eads(anion). The same regularity has been observed for NO interaction with silver tetramers in our previous study. For the Td structure the highest adsorption energy is also observed in case of anionic complex. However, for C1 structure other dependence has been observed: Eads(anion)<Eads(cation)<Eads(neutral). The adsorption of NO on neutral Ag8 cluster (C1 structure) is characterized by the largest N–O bond elongation which should be useful for NO fragmentation process.
Journal: Cancer Letters - CANCER LETT , vol. 963, no. 2, pp. 422-426, 2011
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