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Title: Low-lying excited states by constrained DFT

Journal Article · · Journal of Chemical Physics
DOI: https://doi.org/10.1063/1.5018615 · OSTI ID:1540161

Exploiting the machinery of Constrained Density Functional Theory (CDFT), we propose a variational method for calculating low-lying excited states of molecular systems. We dub this method eXcited CDFT (XCDFT). Excited states are obtained by self-consistently constraining a user-defined population of electrons, Nc, in the virtual space of a reference set of occupied orbitals. By imposing this population to be Nc = 1.0, we computed the first excited state of 15 molecules from a test set. Our results show that XCDFT achieves an accuracy in the predicted excitation energy only slightly worse than linear-response time-dependent DFT (TDDFT), but without incurring into problems of variational collapse typical of the more commonly adopted ΔSCF method. In addition, we selected a few challenging processes to test the limits of applicability of XCDFT. We find that in contrast to TDDFT, XCDFT is capable of reproducing energy surfaces featuring conical intersections (azobenzene and H3) with correct topology and correct overall energetics also away from the intersection. Venturing to condensed-phase systems, XCDFT reproduces the TDDFT solvatochromic shift of benzaldehyde when it is embedded by a cluster of water molecules. Finally, we find XCDFT to be a competitive method among single-reference methods for computations of excited states in terms of time to solution, rate of convergence, and accuracy of the result.

Research Organization:
Rutgers Univ., Piscataway, NJ (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
SC0018343
OSTI ID:
1540161
Alternate ID(s):
OSTI ID: 1432581
Journal Information:
Journal of Chemical Physics, Vol. 148, Issue 14; ISSN 0021-9606
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 35 works
Citation information provided by
Web of Science

References (61)

Self-Consistent Field Calculations of Excited States Using the Maximum Overlap Method (MOM) journal December 2008
Excited-state potential-energy surfaces of metal-adsorbed organic molecules from linear expansion Δ-self-consistent field density-functional theory (ΔSCF-DFT) journal July 2013
The implementation of a self-consistent constricted variational density functional theory for the description of excited states journal March 2012
Density Functional Physicality in Electronic Coupling Estimation: Benchmarks and Error Analysis journal July 2017
Current Status of the AMOEBA Polarizable Force Field journal March 2010
The ORCA program system: The ORCA program system journal June 2011
Singlet fission in pentacene through multi-exciton quantum states journal June 2010
Photochemistry of benzaldehyde journal March 1973
Isomerization Through Conical Intersections journal May 2007
Efficient Real-Time Time-Dependent Density Functional Theory Method and its Application to a Collision of an Ion with a 2D Material journal February 2015
Double excitations within time-dependent density functional theory linear response journal April 2004
An accurate and linear-scaling method for calculating charge-transfer excitation energies and diabatic couplings journal February 2013
Modeling environment effects on spectroscopies through QM/classical models journal January 2013
Constrained subsystem density functional theory journal January 2016
Atomistic Study of the Long-Lived Quantum Coherences in the Fenna-Matthews-Olson Complex journal February 2012
Design Strategies To Improve the Sensitivity of Photoactive Metal Carbonyl Complexes (photoCORMs) to Visible Light and Their Potential as CO-Donors to Biological Targets journal July 2014
Benchmarks for electronically excited states: CASPT2, CC2, CCSD, and CC3 journal April 2008
Communication: CDFT-CI couplings can be unreliable when there is fractional charge transfer journal December 2015
Perspective: Fundamental aspects of time-dependent density functional theory journal June 2016
The formulation of a constricted variational density functional theory for double excitations journal October 2013
Time-Dependent Density Functional Response Theory for Molecules book November 1995
An Accurate and Linear Scaling Method to Calculate Charge-Transfer Excitation Energies and Diabatic Couplings text January 2012
On the rotation-inversion controversy on photoisomerization of azobenzenes. Experimental proof of inversion journal March 1982
Excitons in Solids from Time-Dependent Density-Functional Theory: Assessing the Tamm-Dancoff Approximation journal January 2017
Communication: Conical intersections using constrained density functional theory–configuration interaction journal August 2010
Constrained Density Functional Theory journal November 2011
Perspectives on double-excitations in TDDFT journal November 2011
On the Mechanism of the cis−trans Isomerization in the Lowest Electronic States of Azobenzene:  S 0 , S 1 , and T 1 journal March 2004
Performance of Frozen Density Embedding for Modeling Hole Transfer Reactions journal December 2014
DFT/TDDFT investigation on the UV-vis absorption and fluorescence properties of alizarin dye journal January 2015
The Different Photoisomerization Efficiency of Azobenzene in the Lowest nπ* and ππ* Singlets: The Role of a Phantom State journal April 2008
Improved non-valence virtual orbitals for CI calculations journal January 1990
Conical intersections and double excitations in time-dependent density functional theory journal March 2006
Orthogonality Constrained Density Functional Theory for Electronic Excited States journal May 2013
Single-Reference ab Initio Methods for the Calculation of Excited States of Large Molecules journal November 2005
Accelerated Molecular Dynamics Simulations with the AMOEBA Polarizable Force Field on Graphics Processing Units journal October 2013
Application of the local self-consistent-field method to core-ionized and core-excited molecules, polymers, and proteins: True orthogonality between ground and excited states journal September 2002
Electronic excitations in a dielectric continuum solvent with quantum Monte Carlo: Acrolein in water journal January 2014
Assessment of the ΔSCF density functional theory approach for electronic excitations in organic dyes journal February 2011
Delta Self-Consistent Field as a method to obtain potential energy surfaces of excited molecules on surfaces text January 2008
Benchmarks for electronically excited states: Time-dependent density functional theory and density functional theory based multireference configuration interaction journal September 2008
The improved virtual orbital-complete active space configuration interaction method, a “packageable” efficient ab initio many-body method for describing electronically excited states journal February 2001
Assessing computationally efficient isomerization dynamics: ΔSCF density-functional theory study of azobenzene molecular switching journal December 2011
Predicting Near Edge X-ray Absorption Spectra with the Spin-Free Exact-Two-Component Hamiltonian and Orthogonality Constrained Density Functional Theory journal December 2015
Electronically excited states of ethylene journal December 1992
Charge-Transfer in Time-Dependent Density Functional Theory text January 2017
Chromophore-specific theoretical spectroscopy: From subsystem density functional theory to mode-specific vibrational spectroscopy journal April 2010
The Photochemical Isomerization of Azobenzene 1 journal July 1958
Theoretical Analysis of the Electronic Spectra of Benzaldehyde journal April 2001
Identifying the preferred interaction mode of naringin with gold nanoparticles through experimental, DFT and TDDFT techniques: insights into their sensing and biological applications journal January 2016
Ultrafast investigation of photoinduced charge transfer in aminoanthraquinone pharmaceutical product journal February 2017
On the required shape corrections to the local density and generalized gradient approximations to the Kohn–Sham potentials for molecular response calculations of (hyper)polarizabilities and excitation energies journal June 2002
Excited-state intramolecular proton-transfer (ESIPT)-inspired solid state emitters journal January 2016
On the relation between time-dependent and variational density functional theory approaches for the determination of excitation energies and transition moments. journal April 2009
Discovering and understanding materials through computation journal May 2021
Perspectives on double-excitations in TDDFT text January 2011
Mixed Quantum Mechanical/Molecular Mechanical Molecular Dynamics Simulations of Biological Systems in Ground and Electronically Excited States journal April 2015
Valence shell electronic spectroscopy of isoprene studied by theoretical calculations and by electron scattering, photoelectron, and absolute photoabsorption measurements journal January 2009
Single-Reference ab initio Methods for the Calculation of Excited States of Large Molecules journal January 2006
VMD: Visual molecular dynamics journal February 1996
Recent Advances in Density Functional Methods book November 1995

Cited By (5)

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