Can Ordinary Single-Reference Coupled-Cluster Methods Describe Potential Energy Surfaces with Nearly Spectroscopic Accuracy? The Renormalized Coupled-Cluster Study of the Vibrational Spectrum of HF
1.
SYSNO ASEP
0181304
Document Type
J - Journal Article
R&D Document Type
Journal Article
Subsidiary J
Ostatní články
Title
Can Ordinary Single-Reference Coupled-Cluster Methods Describe Potential Energy Surfaces with Nearly Spectroscopic Accuracy? The Renormalized Coupled-Cluster Study of the Vibrational Spectrum of HF
Author(s)
Piecuch, P. (US) Kucharski, S. A. (PL) Špirko, Vladimír (UFCH-W) Kowalski, K. (US)
Source Title
Journal of Chemical Physics. - : AIP Publishing
- ISSN 0021-9606
Roč. 115, č. 13 (2001), s. 5796-5804
Number of pages
9 s.
Language
eng - English
Country
US - United States
Keywords
quadruply excited clusters ; full CCSDT model ; molecular electronic-structure
Subject RIV
CF - Physical ; Theoretical Chemistry
R&D Projects
LN00A032 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
CEZ
AV0Z4040901 - UFCH-W
Annotation
The renormalized (R) and completely renormalized (CR) CCSD(T) and CCSD(TQ) methods have been used to obtain the potential energy function and the vibrational spectrum of the HF molecule.