We report in this paper an implementation of a 4-component relativistic Hamiltonian based Equation-of-Motion Coupled-Cluster with singles and doubles (EOM-CCSD) theory for the calculation of ionization potential, electron affinity, and excitation energy. In this work, we utilize the previously developed double group symmetry-based generalized tensor contraction scheme and also extend it in order to carry out tensor contractions involving non-totally symmetric and odd-ranked tensors. Several approximated spin-free and two-component Hamiltonians can also be accessed in this implementation. We have applied this method to the halogen monoxide (XO, X = Cl, Br, I, At, Ts) species, in order to assess the quality of a few other recent EOM-CCSD implementations, where spin-orbit coupling contribution has been approximated in different degrees. Besides, we have also studied various excited states of CH2IBr, CH2I2, and (as well as single electron attachment and detachment electronic states of the same species) where comparison has been made with a closely related multi-reference coupled-cluster method, namely, Intermediate Hamiltonian Fock Space Coupled-Cluster singles and doubles theory.
Skip Nav Destination
Article navigation
7 November 2018
Research Article|
November 07 2018
Equation-of-motion coupled-cluster theory based on the 4-component Dirac–Coulomb(–Gaunt) Hamiltonian. Energies for single electron detachment, attachment, and electronically excited states
Avijit Shee
;
Avijit Shee
a)
1
Department of Chemistry, University of Michigan
, 930 N. University, Ann Arbor, Michigan 48109-1055, USA
2
Université de Lille, CNRS, UMR 8523—PhLAM—Physique des Lasers, Atomes et Molécules
, F-59000 Lille, France
Search for other works by this author on:
Trond Saue
;
Trond Saue
b)
3
Laboratoire de Chimie et Physique Quantiques, UMR 5626 CNRS—Université Toulouse III–Paul Sabatier
, 118 Route de Narbonne, F-31062 Toulouse, France
Search for other works by this author on:
Lucas Visscher
;
Lucas Visscher
c)
4
Division of Theoretical Chemistry, Faculty of Sciences, Vrije Universiteit Amsterdam
, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
Search for other works by this author on:
André Severo Pereira Gomes
André Severo Pereira Gomes
d)
2
Université de Lille, CNRS, UMR 8523—PhLAM—Physique des Lasers, Atomes et Molécules
, F-59000 Lille, France
d)Author to whom correspondence should be addressed: andre.gomes@univ-lille.fr. Tel.: +33-3-2043-4163. Fax: +33-3-2033-7020.
Search for other works by this author on:
a)
Electronic mail: ashee@umich.edu
b)
Electronic mail: trond.saue@irsamc.ups-tlse.fr. Tel.: +33-5-6155-6031. Fax: +33-5-6155-6065.
c)
Electronic mail: l.visscher@vu.nl. Tel.: +31-20-598-7624.
d)Author to whom correspondence should be addressed: andre.gomes@univ-lille.fr. Tel.: +33-3-2043-4163. Fax: +33-3-2033-7020.
J. Chem. Phys. 149, 174113 (2018)
Article history
Received:
August 27 2018
Accepted:
October 19 2018
Citation
Avijit Shee, Trond Saue, Lucas Visscher, André Severo Pereira Gomes; Equation-of-motion coupled-cluster theory based on the 4-component Dirac–Coulomb(–Gaunt) Hamiltonian. Energies for single electron detachment, attachment, and electronically excited states. J. Chem. Phys. 7 November 2018; 149 (17): 174113. https://doi.org/10.1063/1.5053846
Download citation file:
Sign in
Don't already have an account? Register
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Pay-Per-View Access
$40.00
Citing articles via
DeePMD-kit v2: A software package for deep potential models
Jinzhe Zeng, Duo Zhang, et al.
Related Content
Dirac-Fock-Breit-Gaunt calculations for tungsten hexacarbonyl W(CO)6
J. Chem. Phys. (May 2016)
Communication: Relativistic Fock-space coupled cluster study of small building blocks of larger uranium complexes
J. Chem. Phys. (July 2014)
Beyond chemical accuracy in the heavy p-block: The first ionization potentials and electron affinities of Ga–Kr, In–Xe, and Tl–Rn
J. Chem. Phys. (July 2019)
Error of relativistic effective core potentials for closed-shell diatomic molecules of p-block heavy and superheavy elements in DFT and TDDFT calculations
J. Chem. Phys. (December 2023)
Inclusion of orbital relaxation and correlation through the unitary group adapted open shell coupled cluster theory using non-relativistic and scalar relativistic Hamiltonians to study the core ionization potential of molecules containing light to medium-heavy elements
J. Chem. Phys. (February 2018)