期刊
JOURNAL OF CHEMICAL PHYSICS
卷 133, 期 20, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3515477
关键词
-
资金
- European Research Council under European Union [258990.]
We present calculations of the lowest excited electronic states of the TiO2 molecule. These are computed using several correlated wavefunction response based methods, as well as time-dependent density functional response theory using a range of functionals. Surprisingly lower cost wavefunction based methods, in particular the secon-order CC2 and CIS(D) methods, completely fail to describe the lowest (1)B2 and (1)A2 states of the molecule. Density functional methods fare better but still show considerable variation amongst functionals. Thus TiO2 provides a strenuous test for correlated excited state methods. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3515477]
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