共 60 条
Performance of DFT functionals for calculating the second-order nonlinear optical properties of dipolar merocyanines
被引:73
作者:
Lescos, Laurie
[1
]
Sitkiewicz, Sebastian P.
[2
,3
,4
,5
]
Beaujean, Pierre
[6
]
Blanchard-Desce, Mireille
[1
]
Champagne, Benoit
[6
]
Matito, Eduard
[2
,7
]
Castet, Frederic
[1
]
机构:
[1] Univ Bordeaux, Inst Sci Mol ISM, UMR CNRS 5255, 351 Cours Liberat, F-33405 Talence, France
[2] Donostia Int Phys Ctr DIPC, Manuel Lardizabal Ibilbidea 4, Donostia San Sebastian 20018, Euskadi, Spain
[3] Euskal Herriko Unibertsitatea UPV EHU, Kimika Fak, Donostia San Sebastian 20080, Euskadi, Spain
[4] Univ Girona, Inst Computat Chem & Catalysis, Campus Montilivi, Girona 17003, Catalonia, Spain
[5] Univ Girona, Dept Chem, Campus Montilivi, Girona 17003, Catalonia, Spain
[6] Univ Namur, Namur Inst Struct Matter, Chem Dept, Unite Chim Phys Theor & Struct, Namur, Belgium
[7] Ikerbasque Fdn Sci, Bilbao 48011, Euskadi, Spain
关键词:
BOND-LENGTH ALTERNATION;
DONOR-ACCEPTOR POLYENES;
PUSH-PULL POLYENES;
2ND HYPERPOLARIZABILITY;
DYES;
1ST;
POLARIZABILITY;
POLARIZATION;
EXCITATIONS;
DEPENDENCE;
D O I:
10.1039/d0cp02992k
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:
The second-order nonlinear optical responses of a series of recently designed dipolar merocyanines are investigated using the 2006 Minnesota family of hybrid exchange-correlation functionals (XCFs), as well as the LC-BLYP, omega B97XD and CAM-B3LYP long-range (LR) corrected XCFs. The performance of these different levels of approximation is discussed in regard to reference second-order Moller-Plesset calculations and experimental data obtained from Hyper-Rayleigh Scattering (HRS) measurements. Particular focus is given to the influence of the amount of exact Hartree-Fock exchange included in the XCF on the magnitude of the static HRS responses, as well as to the impact of tuning the range-separation parameter in LR-XCFs, according to a system-specific nonempirical procedure. Frequency dispersion effects are also investigated, as well as their crucial role in the comparison between theoretical and experimental data.
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页码:16579 / 16594
页数:16
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