Theoretical study of triatomic silver (Ag3) and its ions with coupled-cluster methods and correlation-consistent basis sets

2012 ◽  
Vol 14 (19) ◽  
pp. 6849 ◽  
Author(s):  
Ming-Ju Huang ◽  
John D. Watts
Keyword(s):  
Theoretical Study ◽  
Basis Sets ◽  
Coupled Cluster ◽  
Coupled Cluster Methods ◽  
Correlation Consistent ◽  
Consistent Basis ◽  
Cluster Methods

Linear and cyclic isomers of C4. A theoretical study with coupled‐cluster methods and large basis sets

1992 ◽  
Vol 97 (11) ◽  
pp. 8372-8381 ◽  
Author(s):  
John D. Watts ◽  
Jürgen Gauss ◽  
John F. Stanton ◽  
Rodney J. Bartlett
Keyword(s):  
Theoretical Study ◽  
Basis Sets ◽  
Coupled Cluster ◽  
Coupled Cluster Methods ◽  
Cluster Methods

Electron Affinities of BN, NO and NF: Coupled Cluster and Multireference Configuration Interaction Calculations

2005 ◽  
Vol 70 (7) ◽  
pp. 923-940 ◽  
Author(s):  
Jiří Fišer ◽  
Rudolf Polák
Keyword(s):  
Configuration Interaction ◽  
Relativistic Effects ◽  
Basis Set ◽  
Basis Sets ◽  
Spectroscopic Constants ◽  
Coupled Cluster ◽  
Electron Affinities ◽  
Complete Basis Set ◽  
Correlation Consistent ◽  
Consistent Basis

The accurate adiabatic electron affinities (EA) of the BN, NO and NF molecules have been determined using the coupled cluster approach and multireference configuration interaction methods. By combining large doubly augmented correlation-consistent basis sets (through the sextuple zeta) and complete basis set extrapolations with corrections for core-valence correlation and relativistic effects, we find that the RCCSD(T) method gives EA(BN) = 3.153 eV in very close agreement with experiment and predicts EA(NF) = 0.247 eV. The RCCSD(T) and UCCSD(T) EA(NO) results, 0.008 and 0.031 eV, bracket the experimental value. For both the neutral and anionic ground state species the usual spectroscopic constants were derived.

scholarly journals A computational study for the reaction mechanism of metal-free cyanomethylation of aryl alkynoates with acetonitrile

RSC Advances ◽  
2021 ◽  
Vol 11 (30) ◽  
pp. 18246-18251
Author(s):  
Selçuk Eşsiz
Keyword(s):  
Density Functional Theory ◽  
Reaction Mechanism ◽  
Density Functional ◽  
Computational Study ◽  
Coupled Cluster ◽  
Functional Theory ◽  
Metal Free ◽  
Coupled Cluster Methods ◽  
High Level ◽  
Cluster Methods

A computational study of metal-free cyanomethylation and cyclization of aryl alkynoates with acetonitrile is carried out employing density functional theory and high-level coupled-cluster methods, such as [CCSD(T)].

Active-space coupled-cluster methods

2010 ◽  
Vol 108 (21-23) ◽  
pp. 2987-3015 ◽  
Author(s):  
Piotr Piecuch
Keyword(s):  
Coupled Cluster ◽  
Active Space ◽  
Coupled Cluster Methods ◽  
Cluster Methods

Spin-orbit effects calculated by two-component coupled-cluster methods: test calculations on AuH, Au2, TlH and Tl2

1998 ◽  
Vol 293 (1-2) ◽  
pp. 97-102 ◽  
Author(s):  
Hyo-Sug Lee ◽  
Young-Kyu Han ◽  
Myeong Cheol Kim ◽  
Cheolbeom Bae ◽  
Yoon Sup Lee
Keyword(s):  
Coupled Cluster ◽  
Spin Orbit ◽  
Coupled Cluster Methods ◽  
Two Component ◽  
Cluster Methods
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