van der Waals interaction;
MP2;
Density functional theory;
CCSD(T);
B3LYP-D;
CORRELATED MOLECULAR CALCULATIONS;
GAUSSIAN-BASIS SETS;
DENSITY FUNCTIONALS;
THERMOCHEMICAL KINETICS;
ABSORPTION;
SPECTRUM;
STATES;
MODEL;
B3LYP;
D O I:
10.1016/j.comptc.2012.10.020
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
In the present study, the performance of different exchange-correlation functional of DFT for van der Waals molecules has been studied by optimising the structures with augmented cc-pVTZ basis sets. The structural parameters along with vibrational frequencies and rotational constants were calculated using 15 different exchange-correlations functional for 10 molecules and compared with experimental results. Further the interaction energies (basis set superposition error corrected) were calculated using different DFT exchange-correlation functional and compared with MP2 and CCSD(T) method. The error analysis was carried out using MUE (mean unsigned error) and MAPE (mean absolute percentage error) statistical methods. (C) 2012 Elsevier B.V. All rights reserved.
机构:
Shanxi Normal Univ, Sch Chem & Mat Sci, Linfen 041004, Peoples R China
Changzhi Med Coll, Dept Pharmaceut, Changzhi 046000, Peoples R ChinaShanxi Normal Univ, Sch Chem & Mat Sci, Linfen 041004, Peoples R China
He, Yan-Bin
Jia, Jian-Feng
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机构:
Shanxi Normal Univ, Sch Chem & Mat Sci, Linfen 041004, Peoples R ChinaShanxi Normal Univ, Sch Chem & Mat Sci, Linfen 041004, Peoples R China
Jia, Jian-Feng
Wu, Hai-Shun
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机构:
Shanxi Normal Univ, Sch Chem & Mat Sci, Linfen 041004, Peoples R ChinaShanxi Normal Univ, Sch Chem & Mat Sci, Linfen 041004, Peoples R China
机构:
Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing Key Lab Fine Ceram, Beijing 100084, Peoples R ChinaTsinghua Univ, Inst Nucl & New Energy Technol, Beijing Key Lab Fine Ceram, Beijing 100084, Peoples R China
Liu, Juan
Wang, Chen
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机构:
Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing Key Lab Fine Ceram, Beijing 100084, Peoples R ChinaTsinghua Univ, Inst Nucl & New Energy Technol, Beijing Key Lab Fine Ceram, Beijing 100084, Peoples R China
Wang, Chen
Liang, Tongxiang
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机构:
Tsinghua Univ, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R ChinaTsinghua Univ, Inst Nucl & New Energy Technol, Beijing Key Lab Fine Ceram, Beijing 100084, Peoples R China
Liang, Tongxiang
Lai, Wensheng
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机构:
Tsinghua Univ, Sch Mat Sci & Engn, Adv Mat Lab, Beijing 100084, Peoples R ChinaTsinghua Univ, Inst Nucl & New Energy Technol, Beijing Key Lab Fine Ceram, Beijing 100084, Peoples R China