Energetics and Vibrational Signatures of Nucleobase Argyrophilic Interactions.

ABSTRACT: This study investigates the interactions of both purine (adenine and guanine) and pyrimidine (cytosine, thymine, and uracil) nucleobases with a pair of silver atoms (Ag₂). Full geometry optimizations were performed on several structures of each nucleobase/Ag₂ complex and the corresponding isolated monomers using the M06-2X density functional with a correlation consistent triple-ζ basis set augmented with diffuse functions on all atoms and a relativistic pseudopotential on Ag (aug-cc-pVTZ for H, C, N, and O and aug-cc-pVTZ-PP for Ag; denoted aVTZ). Harmonic vibrational frequency computations indicate that each optimized structure corresponds to a minimum on the M06-2X/aVTZ potential energy surface. Relative electronic energies for interactions between Ag₂ an

SUBMITTER: Lee SP 

PROVIDER: S-EPMC6645001 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature