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Excitation spectra of Ag3–DNA bases complexes : A benchmark study. / Максимов, Дмитрий Алексеевич; Помогаев, Владимир; Кононов, Алексей Игоревич.
в: Chemical Physics Letters, Том 673, 2017, стр. 11-18.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Excitation spectra of Ag3–DNA bases complexes
T2 - A benchmark study
AU - Максимов, Дмитрий Алексеевич
AU - Помогаев, Владимир
AU - Кононов, Алексей Игоревич
N1 - Funding Information: The authors acknowledge RSF for a research grant 16-13-10090. Calculations were carried out on the Stallo supercomputer at the University of Troms? with the support of the Norwegian Supercomputer Program (Grant No. NN4654K). Publisher Copyright: © 2017
PY - 2017
Y1 - 2017
N2 - Assessment of different ab initio and TDDFT methods was studied for calculation of the excitation energies of the complexes of pyrimidine bases with positively charged Ag3+clusters. Performance of CIS, CIS(D), CC2, ADC(2), MP2, and TDDFT techniques with the use of different hybrid–GGA and meta–hybrid–GGA functionals and basis sets is studied. We found that M06–2X functional shows good accuracy in comparison with the ADC(2) ab initio method and that the geometry optimization approach can strongly affect the excitation spectra of the complexes. Our results may have important implications for further studies of ligand–stabilized silver nanoclusters.
AB - Assessment of different ab initio and TDDFT methods was studied for calculation of the excitation energies of the complexes of pyrimidine bases with positively charged Ag3+clusters. Performance of CIS, CIS(D), CC2, ADC(2), MP2, and TDDFT techniques with the use of different hybrid–GGA and meta–hybrid–GGA functionals and basis sets is studied. We found that M06–2X functional shows good accuracy in comparison with the ADC(2) ab initio method and that the geometry optimization approach can strongly affect the excitation spectra of the complexes. Our results may have important implications for further studies of ligand–stabilized silver nanoclusters.
KW - DFT
KW - DNA
KW - Excited states
KW - Fluorescent silver nanoclusters
KW - TDDFT
UR - http://www.scopus.com/inward/record.url?scp=85012177486&partnerID=8YFLogxK
U2 - 10.1016/j.cplett.2017.01.074
DO - 10.1016/j.cplett.2017.01.074
M3 - Article
AN - SCOPUS:85012177486
VL - 673
SP - 11
EP - 18
JO - Chemical Physics Letters
JF - Chemical Physics Letters
SN - 0009-2614
ER -
ID: 28203934