World's Best Scientists 2026 revealed!

D-Index & Metrics

Chemistry

D-Index
55
Citations
11517
World Ranking
12071
National Ranking
898

Overview

Koichi Ohno is affiliated with the University of Tokyo in Japan and contributes primarily to the fields of physics and chemistry. Their research spans multiple subfields including atomic and molecular physics, optics, spectroscopy, atmospheric science, health toxicology, mutagenesis, and materials chemistry.

The main topics of their scientific work include advanced chemical physics studies, atmospheric chemistry and aerosols, spectroscopy and quantum chemical studies, per- and polyfluoroalkyl substances research, carbon dioxide capture technologies, synthesis and properties of aromatic compounds, and advanced NMR techniques and applications.

Ohno has published several papers in notable scientific journals. Selected recent publications include:

  • "Quantum chemical exploration of polymerized forms of polycyclic aromatic hydrocarbons: D6h tetramer and polymer of coronene" (2020, Chemical Physics Letters)
  • "High performance global exploration of isomers and isomerization channels on quantum chemical potential energy surface of H5C2NO2" (2020, Journal of Computational Chemistry)

Koichi Ohno's frequent coauthors include Takahiro Yamagishi, Hiroshi Yamamoto, Hiroko Satoh, Takeaki Iwamoto, and Yuuki Midoro.

Their work commonly appears in the following journals: Environmental Toxicology and Chemistry, Environmental Science & Technology, Chemical Physics Letters, Journal of Computational Chemistry, and Journal of Veterinary Medical Science.

Best Publications

  • Systematic exploration of the mechanism of chemical reactions: the global reaction route mapping (GRRM) strategy using the ADDF and AFIR methods

    Satoshi Maeda;Koichi Ohno;Keiji Morokuma;Keiji Morokuma

  • Global mapping of equilibrium and transition structures on potential energy surfaces by the scaled hypersphere search method: applications to ab initio surfaces of formaldehyde and propyne molecules.

    Satoshi Maeda;Koichi Ohno

  • A scaled hypersphere search method for the topography of reaction pathways on the potential energy surface

    Koichi Ohno;Satoshi Maeda

  • Global Reaction Route Mapping on Potential Energy Surfaces of Formaldehyde, Formic Acid, and Their Metal-Substituted Analogues

    Koichi Ohno;Satoshi Maeda

  • Intramolecular structures of C 60 molecules adsorbed on the Cu(111)-(1×1) surface

    Tomihiro Hashizume;K. Motai;X. D. Wang;H. Shinohara

  • STUDY OF ELECTRON DISTRIBUTIONS OF MOLECULAR ORBITALS BY PENNING IONIZATION ELECTRON SPECTROSCOPY

    K. Ohno;H. Mutoh;Y. Harada

  • State‐resolved collision energy dependence of Penning ionization cross sections for N2 and CO2 by He*23S

    Koichi Ohno;Tomohide Takami;Koichiro Mitsuke;Toshimasa Ishida

  • Updated Branching Plane for Finding Conical Intersections without Coupling Derivative Vectors.

    Satoshi Maeda;Koichi Ohno;Keiji Morokuma

  • Raman spectra of polycyclic aromatic hydrocarbons. Comparison of calculated Raman intensity distributions with observed spectra for naphthalene, anthracene, pyrene, and perylene

    Hideaki Shinohara;Yoshihiro Yamakita;Koichi Ohno

  • Kinetic energy dependence of partial cross sections for the collisional ionization of H2O, H2S, O2, and Ar with He(2 3S) metastable atoms

    Koichiro Mitsuke;Tomohide Takami;Koichi Ohno

  • Computational Study of Titanocene-Catalyzed Dehydrocoupling of the Adduct Me2NH·BH3: An Intramolecular, Stepwise Mechanism

    Yi Luo and;Koichi Ohno

  • Structures of water octamers (H2O)8: exploration on ab initio potential energy surfaces by the scaled hypersphere search method.

    Satoshi Maeda;Koichi Ohno

  • Jahn-Teller Distortion in Dangling-Bond Linear Chains Fabricated on a Hydrogen-Terminated Si(100)- 2×1 Surface

    Taro Hitosugi;S. Heike;T. Onogi;T. Hashizume

  • Collision‐energy/electron‐energy resolved two‐dimensional study of Penning ionization of Ar by He metastable atoms 23S and 21S

    Koichi Ohno;Hideo Yamakado;Tetsuji Ogawa;Toshiaki Yamata

  • From Roaming Atoms to Hopping Surfaces: Mapping Out Global Reaction Routes in Photochemistry

    Satoshi Maeda;Tetsuya Taketsugu;Koichi Ohno;Keiji Morokuma

  • Selective Observation of Outermost Surface Layer during Epitaxial Growth by Penning-Ionization Electron Spectroscopy: Pentacene on Graphite

    Y. Harada;H. Ozaki;K. Ohno

  • Penning ionization of (CH3)4C and (CH3)3CCl by collision with He*(2 3S) metastable atoms

    Tomohide Takami;Koichiro Mitsuke;Koichi Ohno

  • Exterior electron model for Penning ionization. Unsaturated hydrocarbons

    Koichi Ohno;Setsuo Matsumoto;Yoshiya Harada

  • Collision energy‐resolved Penning ionization electron spectra of unsaturated hydrocarbons with He*(2 3S) metastable atoms

    Tomohide Takami;Koichi Ohno

  • Automated global mapping of minimal energy points on seams of crossing by the anharmonic downward distortion following method: a case study of H2CO.

    Satoshi Maeda;Koichi Ohno;Keiji Morokuma

Frequent Co-Authors

Satoshi Maeda
Satoshi Maeda Hokkaido University
Hajime Tsujimoto
Hajime Tsujimoto University of Tokyo
Takeaki Iwamoto
Takeaki Iwamoto Tohoku University
Takashi Kajiwara
Takashi Kajiwara Nara Women's University
Keiji Morokuma
Keiji Morokuma Kyoto University
Hiroo Inokuchi
Hiroo Inokuchi University of Tokyo
Yozo Fujino
Yozo Fujino Yokohama National University
Hisashi Inokuma
Hisashi Inokuma University of Tokyo
Kazuhiko Seki
Kazuhiko Seki National Institute of Advanced Industrial Science and Technology
Yoshiyuki Kawazoe
Yoshiyuki Kawazoe Tohoku University

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

Studying Chemistry in the USA opens doors to diverse career options beyond traditional laboratory roles. One popular path is becoming a pharmaceutical sales representative, where understanding chemical compounds enhances your ability to communicate product benefits. To learn more about the earning potential, check out the pharmaceutical rep salary.

For those interested in healthcare, pursuing a pharmacy degree is another rewarding option. However, aspiring pharmacists should consider the significant investment involved. Detailed insights on how much does it cost to become a pharmacist can help in planning your educational journey wisely.

If you are drawn to forensic applications of chemistry, becoming an autopsy technician could be a fitting career. This role requires specialized training and offers unique challenges and rewards. Visit the guide on autopsy technician for more information on education and job outlook.

Many students also explore forensic science programs online. To find quality education at affordable rates, consider reviewing the list of the best online colleges for forensic science. These programs offer flexibility and practical skills that align with chemistry-based careers.

Best Scientists Citing Koichi Ohno

Trending Scientists