D-Index & Metrics Best Publications
Kizashi Yamaguchi

Kizashi Yamaguchi

D-Index & Metrics D-index (Discipline H-index) only includes papers and citation values for an examined discipline in contrast to General H-index which accounts for publications across all disciplines.

Discipline name D-index D-index (Discipline H-index) only includes papers and citation values for an examined discipline in contrast to General H-index which accounts for publications across all disciplines. Citations Publications World Ranking National Ranking
Chemistry D-index 67 Citations 15,372 458 World Ranking 3287 National Ranking 209

Overview

What is he best known for?

The fields of study he is best known for:

  • Quantum mechanics
  • Organic chemistry
  • Electron

Kizashi Yamaguchi focuses on Computational chemistry, Crystallography, Ab initio, Molecular orbital and Singlet state. His specific area of interest is Computational chemistry, where Kizashi Yamaguchi studies Density functional theory. His Crystallography study combines topics in areas such as Ferromagnetism, Spin, Transition metal, Atomic orbital and Oxygen-evolving complex.

His research on Ab initio also deals with topics like

  • Condensed matter physics which intersects with area such as Spin polarization,
  • Exchange interaction together with Antiferromagnetism. His Molecular orbital research is multidisciplinary, relying on both Bond length, Ab initio quantum chemistry methods and Dendrimer. Kizashi Yamaguchi has included themes like Triplet state, Molecule and Triatomic molecule in his Singlet state study.

His most cited work include:

  • A spin correction procedure for unrestricted Hartree-Fock and Møller-Plesset wavefunctions for singlet diradicals and polyradicals (497 citations)
  • Ab initio computations of effective exchange integrals for H–H, H–He–H and Mn2O2 complex: comparison of broken-symmetry approaches (472 citations)
  • Theoretical Study on Second Hyperpolarizabilities of Phenylacetylene Dendrimer: Toward an Understanding of Structure−Property Relation in NLO Responses of Fractal Antenna Dendrimers (288 citations)

What are the main themes of his work throughout his whole career to date?

His primary scientific interests are in Computational chemistry, Condensed matter physics, Ab initio, Crystallography and Density functional theory. The various areas that he examines in his Computational chemistry study include Chemical physics, Diradical, Atomic orbital, Molecule and Chemical bond. His work is dedicated to discovering how Condensed matter physics, Molecular physics are connected with Spin-½ and other disciplines.

His work carried out in the field of Ab initio brings together such families of science as Electronic correlation, Electron, Ab initio quantum chemistry methods, Hyperpolarizability and Molecular orbital. His Crystallography research includes elements of Manganese, Cluster, Ion and Oxygen-evolving complex, Photosystem II. His work deals with themes such as Spin states and Quantum, which intersect with Density functional theory.

He most often published in these fields:

  • Computational chemistry (30.74%)
  • Condensed matter physics (22.31%)
  • Ab initio (20.99%)

What were the highlights of his more recent work (between 2009-2021)?

  • Crystallography (18.84%)
  • Photosystem II (5.95%)
  • Oxygen-evolving complex (5.45%)

In recent papers he was focusing on the following fields of study:

Kizashi Yamaguchi mainly focuses on Crystallography, Photosystem II, Oxygen-evolving complex, Computational chemistry and Density functional theory. His Crystallography research integrates issues from Manganese, Cluster, Ion, Spin states and Nucleophile. The concepts of his Computational chemistry study are interwoven with issues in Molecule, Symmetry breaking, Protonation and Chemical bond.

Kizashi Yamaguchi has researched Density functional theory in several fields, including Methane monooxygenase, Thermodynamics, Molecular physics, Ab initio and Antiferromagnetism. His Molecular physics research incorporates themes from Spin, Condensed matter physics, Inductive coupling and Dimer. His Diradical study integrates concerns from other disciplines, such as Yield and Molecular orbital.

Between 2009 and 2021, his most popular works were:

  • Possible mechanisms for the O–O bond formation in oxygen evolution reaction at the CaMn4O5(H2O)4 cluster of PSII refined to 1.9 Å X-ray resolution (82 citations)
  • An oxyl/oxo mechanism for oxygen-oxygen coupling in PSII revealed by an x-ray free-electron laser (66 citations)
  • Possible mechanisms of water splitting reaction based on proton and electron release pathways revealed for CaMn4O5 cluster of PSII refined to 1.9 Å X-ray resolution (56 citations)

In his most recent research, the most cited papers focused on:

  • Quantum mechanics
  • Organic chemistry
  • Electron

His primary areas of investigation include Crystallography, Oxygen-evolving complex, Photosystem II, Cluster and Computational chemistry. His Crystallography research focuses on Spin states and how it relates to Antiferromagnetism and Heisenberg model. The study incorporates disciplines such as Ion and Manganese in addition to Cluster.

His Computational chemistry research incorporates elements of Symmetry breaking, Chemical bond, Singlet state and Physical chemistry. His biological study spans a wide range of topics, including Oxygen evolution, Diradical, Molecular orbital and Reaction mechanism. His study on Molecular orbital also encompasses disciplines like

  • Atomic physics together with Chemical physics,
  • Spin contamination most often made with reference to Expectation value.

This overview was generated by a machine learning system which analysed the scientist’s body of work. If you have any feedback, you can contact us here.

Best Publications

A spin correction procedure for unrestricted Hartree-Fock and Møller-Plesset wavefunctions for singlet diradicals and polyradicals

K. Yamaguchi;F. Jensen;A. Dorigo;K.N. Houk.
Chemical Physics Letters (1988)

711 Citations

Ab initio computations of effective exchange integrals for H–H, H–He–H and Mn2O2 complex: comparison of broken-symmetry approaches

T. Soda;Y. Kitagawa;T. Onishi;Y. Takano.
Chemical Physics Letters (2000)

676 Citations

Theoretical Study on Second Hyperpolarizabilities of Phenylacetylene Dendrimer: Toward an Understanding of Structure−Property Relation in NLO Responses of Fractal Antenna Dendrimers

Masayoshi Nakano;Harunori Fujita;Masahiro Takahata;Kizashi Yamaguchi.
Journal of the American Chemical Society (2002)

435 Citations

The electronic structures of biradicals in the unrestricted Hartree-Fock approximation

Kizashi Yamaguchi.
Chemical Physics Letters (1975)

378 Citations

Distribution of odd electrons in ground-state molecules

Kazuo Takatsuka;Takayuki Fueno;Kizashi Yamaguchi.
Theoretical Chemistry Accounts (1978)

352 Citations

Second Hyperpolarizability (γ) of Singlet Diradical System: Dependence of γ on the Diradical Character

Masayoshi Nakano;Ryohei Kishi;Tomoshige Nitta;Takashi Kubo.
Journal of Physical Chemistry A (2005)

312 Citations

Electroconductive porous coordination polymer Cu[Cu(pdt)2] composed of donor and acceptor building units.

Shinya Takaishi;Miyuki Hosoda;Takashi Kajiwara;Hitoshi Miyasaka.
Inorganic Chemistry (2009)

266 Citations

A general algorithm for calculation of Heisenberg exchange integrals J in multispin systems

M. Shoji;K. Koizumi;Y. Kitagawa;T. Kawakami.
Chemical Physics Letters (2006)

241 Citations

Ab Initio MO Calculations of Effective Exchange Integrals between Transition-Metal Ions via Oxygen Dianions: Nature of the Copper-Oxygen Bonds and Superconductivity

Kizashi Yamaguchi;Yoichi Takahara;Takayuki Fueno;Keiichiro Nasu.
Japanese Journal of Applied Physics (1987)

237 Citations

MOLECULAR ORBITAL (MO) THEORY FOR MAGNETICALLY INTERACTING ORGANIC COMPOUNDS. AB-INITIO MO CALCULATIONS OF THE EFFECTIVE EXCHANGE INTEGRALS FOR CYCLOPHANE-TYPE CARBENE DIMERS

Kizashi Yamaguchi;Hiroaki Fukui;Takayuki Fueno.
Chemistry Letters (1986)

212 Citations

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