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Kimihiko Hirao

Kimihiko Hirao

D-Index & Metrics

Chemistry

D-Index
78
Citations
27665
World Ranking
3739
National Ranking
213

Physics

D-Index
78
Citations
27435
World Ranking
3148
National Ranking
105

Overview

Kimihiko Hirao is a researcher affiliated with RIKEN in Japan whose work spans several interconnected scientific disciplines. Their publications encompass the fields of Physics and Astronomy, Chemistry, and Materials Science, with a particular focus on subfields such as Atomic and Molecular Physics, and Optics, Materials Chemistry, Organic Chemistry, Physical and Theoretical Chemistry, and Molecular Biology.

Their research predominantly covers topics including Advanced Chemical Physics Studies, Free Radicals and Antioxidants, Spectroscopy and Quantum Chemical Studies, Machine Learning in Materials Science, Photochemistry and Electron Transfer Studies, Catalytic Processes in Materials Science, and Advanced Physical and Chemical Molecular Interactions.

Their recent scholarly output includes the following papers:

  • Koopmans'-Type Theorem in Kohn-Sham Theory with Optimally Tuned Long-Range-Corrected (LC) Functionals, 2021, The Journal of Physical Chemistry A
  • A computational study on the kinetics of pyrolysis of isopropyl propionate as a biodiesel model: DFT and ab initio investigation, 2020, Fuel
  • An improved Slater's transition state approximation, 2021, The Journal of Chemical Physics
  • Excitation energies expressed as orbital energies of Kohn-Sham density functional theory with long-range corrected functionals, 2020, Journal of Computational Chemistry
  • The core ionization energies calculated by delta SCF and Slater's transition state theory, 2023, The Journal of Chemical Physics

Kimihiko Hirao's frequent publication venues reflect their multidisciplinary expertise and include:

  • The Journal of Physical Chemistry A
  • The Journal of Chemical Physics
  • Journal of Computational Chemistry
  • Fuel
  • The Journal of Physical Chemistry Letters

Collaboration is an integral part of their research activities. Frequent co-authors include Bun Chan, Takahito Nakajima, Jong-Won Song, Han-Seok Bae, and Ho-Jin Lee, highlighting a network of researchers contributing to their scientific investigations.

Best Publications

  • A long-range correction scheme for generalized-gradient-approximation exchange functionals

    Hisayoshi Iikura;Takao Tsuneda;Takeshi Yanai;Kimihiko Hirao

  • A long-range-corrected time-dependent density functional theory

    Yoshihiro Tawada;Takao Tsuneda;Susumu Yanagisawa;Takeshi Yanai

  • Multireference Møller-Plesset method

    K. Hirao

  • Cluster expansion of the wavefunction. Symmetry-adapted-cluster expansion, its variational determination, and extension of open-shell orbital theory

    H. Nakatsuji;K. Hirao

  • NWChem: Past, Present, and Future

    E. Aprà;E. J. Bylaska;W. A. de Jong;N. Govind

  • NWChem: Past, present, and future

    E. Aprà;E. J. Bylaska;W. A. de Jong;N. Govind

  • On Koopmans' theorem in density functional theory.

    Takao Tsuneda;Jong-Won Song;Satoshi Suzuki;Kimihiko Hirao

  • Multireference Møller—Plesset perturbation theory for high-spin open-shell systems

    K. Hirao

  • On non-negativity of Fukui function indices

    Ram Kinkar Roy;Sourav Pal;Kimihiko Hirao

  • State-specific multireference Møller—Plesset perturbation treatment for singlet and triplet excited states, ionized states and electron attached states of H2O

    K. Hirao

  • A NEW ONE-PARAMETER PROGRESSIVE COLLE-SALVETTI-TYPE CORRELATION FUNCTIONAL

    Takao Tsuneda;Toshihisa Suzumura;Kimihiko Hirao

  • The higher-order Douglas–Kroll transformation

    Takahito Nakajima;Kimihiko Hirao

  • Long-range corrected density functional calculations of chemical reactions: Redetermination of parameter

    Jong-Won Song;Tsuyoshi Hirosawa;Takao Tsuneda;Kimihiko Hirao

  • A density functional study of van der Waals interactions

    Muneaki Kamiya;Takao Tsuneda;Kimihiko Hirao

  • Nonlinear optical property calculations by the long-range-corrected coupled-perturbed Kohn-Sham method.

    Muneaki Kamiya;Hideo Sekino;Takao Tsuneda;Kimihiko Hirao

  • The Douglas-Kroll-Hess approach.

    Takahito Nakajima;Kimihiko Hirao

  • Polarizability and second hyperpolarizability evaluation of long molecules by the density functional theory with long-range correction

    Hideo Sekino;Yasuyuki Maeda;Muneaki Kamiya;Kimihiko Hirao

  • Multireference Møller–Plesset perturbation treatment of potential energy curve of N2

    K. Hirao

  • A generalization of the Davidson's method to large nonsymmetric eigenvalue problems

    K. Hirao;H. Nakatsuji

  • An investigation of density functionals: The first-row transition metal dimer calculations

    Susumu Yanagisawa;Takao Tsuneda;Kimihiko Hirao

Frequent Co-Authors

Tetsuya Taketsugu
Tetsuya Taketsugu Hokkaido University
Takeshi Yanai
Takeshi Yanai Nagoya University
So Hirata
So Hirata University of Illinois at Urbana-Champaign
Michel Dupuis
Michel Dupuis University at Buffalo, State University of New York
Koichi Yamashita
Koichi Yamashita University of Tokyo
Mark S. Gordon
Mark S. Gordon Iowa State University
Hiroshi Nakatsuji
Hiroshi Nakatsuji Kyoto University
Djamaladdin G. Musaev
Djamaladdin G. Musaev Emory University
Young-Kyu Han
Young-Kyu Han Dongguk University
Robert J. Harrison
Robert J. Harrison Murdoch University

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