期刊
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
卷 20, 期 24, 页码 16354-16363出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8cp00643a
关键词
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资金
- Cluster of Excellence RESOLV [EXC 1069]
- Deutsche Forschungsgemeinschaft [Ha 2588/8-1]
We present an implementation of analytic gradients for electronically excited states for the algebraic-diagrammatic construction through second order, ADC(2), in combination with the conductor-like screening model (COSMO) as an implicit solvent model. The implementation uses a post-SCF reaction field scheme for the coupling between the environment and the quantum system which retains the computational efficiency of the gas-phase RI-ADC(2) calculations. Applying this approach, we computed solvatochromic shifts for UV absorption and fluorescence transitions of 4-(N,N-dimethylamino) benzonitrile using equilibrium geometries for the ground and the first excited states optimized in the presence of acetonitrile as solvent. Furthermore, we investigated the excited state energies and geometries of the 2-iodobenzimidazolium.triflate ion pair in aqueous solution as an example where solvent effects have a large influence on the structure and the UV spectrum.
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