2026 Roald Hoffmann: Chemistry Researcher – H-Index, Publications & Awards

Discipline name	D-Index	World Ranking	Current World Ranking	National Ranking	Current National Ranking	Publications	Citations
Chemistry	148	147	130	75	60	847	96225

Research.com Recognitions

2026 - Research.com Chemistry in United States Leader Award
2025 - Research.com Chemistry in United States Leader Award
2017 - Polish Academy of Science
2009 - Fellow of the American Chemical Society
2009 - James T. Grady-James H. Stack Award for Interpreting Chemistry, American Chemical Society (ACS)
2007 - Member of the European Academy of Sciences
1998 - Kołos Medal (Medal im. Włodzimierza Kołosa), University of Warsaw and Polish Chemical Society
1996 - George C. Pimentel Award in Chemical Education, American Chemical Society (ACS)
1990 - Priestley Medal, American Chemical Society (ACS)
1986 - NAS Award in Chemical Sciences, National Academy of Sciences (US) For his unifying contributions to chemistry, bringing together theory and experiment; quantum mechanics; and organic, inorganic, organometallic, and solid state chemistry.
1984 - Fellow of the Royal Society, United Kingdom
1983 - US President's National Medal of Science "His creative applications of theory to organic and inorganic chemistry have brought together the world community of chemists. The magnitude and uniqueness of his contributions to modern chemistry and the scientific process are contributing to an ever-improving understanding of chemistry.", Presented by President Reagan at a White House Ceremony on February 27, 1985.
1982 - Fellow of American Physical Society (APS)
1981 - Nobel Prize for their theories, developed independently, concerning the course of chemical reactions
1981 - William H. Nichols Medal, American Chemical Society (ACS)
1978 - Fellow of John Simon Guggenheim Memorial Foundation
1974 - Linus Pauling Award, American Chemical Society (ACS)
1974 - Centenary Prize, Royal Society of Chemistry (UK)
1973 - Arthur C. Cope Award, American Chemical Society (ACS)
1972 - Member of the National Academy of Sciences
1971 - Fellow of the American Academy of Arts and Sciences
1966 - Fellow of Alfred P. Sloan Foundation

Overview

Roald Hoffmann is affiliated with Cornell University in the United States. Their research spans fields of Materials Science, with a particular emphasis on Materials Chemistry, Organic Chemistry, Atomic and Molecular Physics and Optics, Geophysics, and Mechanics of Materials.

Their scientific contributions cover a variety of main topics, including:

High-pressure geophysics and materials
Boron and Carbon Nanomaterials Research
Advanced Chemical Physics Studies
Molecular Junctions and Nanostructures
Energetic Materials and Combustion
Academic Freedom and Politics
Discourse Analysis in Language Studies

Recent publications by Hoffmann include:

Experimental observation of open structures in elemental magnesium at terapascal pressures, 2022, Nature Physics
Words Matter: On the Debate over Free Speech, Inclusivity, and Academic Excellence, 2022, The Journal of Physical Chemistry Letters
A 21st Century View of Allowed and Forbidden Electrocyclic Reactions, 2023, The Journal of Organic Chemistry
Varying Electronic Configurations in Compressed Atoms: From the Role of the Spatial Extension of Atomic Orbitals to the Change of Electronic Configuration as an Isobaric Transformation, 2020, Journal of Chemical Theory and Computation
Theoretical Studies of Furan and Thiophene Nanothreads: Structures, Cycloaddition Barriers, and Activation Volumes, 2022, Journal of the American Chemical Society

Hoffmann has published frequently in the following journals:

Journal of the American Chemical Society
Nature Physics
The Journal of Physical Chemistry Letters
The Journal of Organic Chemistry
Journal of Chemical Theory and Computation

The scientist's collaborative efforts include frequent work with coauthors such as:

N. W. Ashcroft
Sabri Elatresh
Stanimir Bonev
Carol A. Parish
Roberto Cammi

Roald Hoffmann's career has been recognized with multiple awards:

Polish Academy of Science, 2017
Fellow of the American Chemical Society, 2009
James T. Grady-James H. Stack Award for Interpreting Chemistry, ACS, 2009
Member of the European Academy of Sciences, 2007
Kołos Medal, University of Warsaw and Polish Chemical Society, 1998
George C. Pimentel Award in Chemical Education, ACS, 1996
Priestley Medal, ACS, 1990
NAS Award in Chemical Sciences, National Academy of Sciences, 1986
Fellow of the Royal Society, United Kingdom, 1984
US President's National Medal of Science, 1983
Fellow of American Physical Society, 1982
William H. Nichols Medal, ACS, 1981
Nobel Prize, 1981
Fellow of John Simon Guggenheim Memorial Foundation, 1978
Centenary Prize, Royal Society of Chemistry, 1974
Linus Pauling Award, ACS, 1974
Arthur C. Cope Award, ACS, 1973
Member of the National Academy of Sciences, 1972
Fellow of the American Academy of Arts and Sciences, 1971
Fellow of Alfred P. Sloan Foundation, 1966

Best Publications

An Extended Hückel Theory. I. Hydrocarbons

Ronald Hoffmann

7547
Citations
The Conservation of Orbital Symmetry

R. B. Woodward;Roald Hoffmann

5357
Citations
Interaction of orbitals through space and through bonds

Roald Hoffmann

2078
Citations
Stereochemistry of Electrocyclic Reactions

R. B. Woodward;Roald Hoffmann

1935
Citations
Orbital interactions in metal dimer complexes

P. Jeffrey Hay;Jack C. Thibeault;Roald Hoffmann

1907
Citations
Building Bridges Between Inorganic and Organic Chemistry (Nobel Lecture)

Roald Hoffmann

1794
Citations
Structure and chemistry of bis(cyclopentadienyl)-MLn complexes

Joseph W. Lauher;Roald Hoffmann

1626
Citations
Counterintuitive Orbital Mixing in Semiempirical and ab Initio Molecular Orbital Calculations

J. H. Ammeter;H. B. Buergi;J. C. Thibeault;R. Hoffmann

1532
Citations
Die Erhaltung der Orbitalsymmetrie

R. B. Woodward;R. Hoffmann

1444
Citations
Theory of Polyhedral Molecules. I. Physical Factorizations of the Secular Equation

Roald Hoffmann;William N. Lipscomb

1251
Citations
The band structure of the tetracyanoplatinate chain

Myung-Hwan Whangbo;Roald Hoffmann

1241
Citations
A Chemical and Theoretical Way to Look at Bonding on Surfaces.

Roald Hoffmann

1074
Citations
Transition metal pentacoordination

Angelo R. Rossi;Roald. Hoffmann

972
Citations
Potential high-Tc superconducting lanthanum and yttrium hydrides at high pressure.

Hanyu Liu;Ivan I. Naumov;Roald Hoffmann;N. W. Ashcroft

969
Citations
What Do the Kohn−Sham Orbitals and Eigenvalues Mean?

Ralf Stowasser;Roald Hoffmann

948
Citations
Benzynes, dehydroconjugated molecules, and the interaction of orbitals separated by a number of intervening sigma bonds

Roald Hoffmann;Akira Imamura;Warren J. Hehre

948
Citations
Selection Rules for Concerted Cycloaddition Reactions

Roald Hoffmann;R. B. Woodward

908
Citations
Bonding capabilities of transition metal carbonyl fragments

Mihai. Elian;Roald. Hoffmann

873
Citations
How Chemistry and Physics Meet in the Solid State

Roald Hoffmann

830
Citations
Planar tetracoordinate carbon

Roald Hoffmann;Roger W. Alder;Charles F. Wilcox

797
Citations
Conservation of Orbital Symmetry

Roald Hoffmann;Robert B. Woodward

682
Citations

Frequent Co-Authors

N. W. Ashcroft Cornell University

Xiaodong Wen Chinese Academy of Sciences

Rolf Gleiter Heidelberg University

Dean J. Tantillo University of California, Davis

Santiago Alvarez University of Barcelona

Sason Shaik Hebrew University of Jerusalem

Kazunari Yoshizawa Kyushu University

Robert Burns Woodward Novartis (Switzerland)

Francis J. DiSalvo Cornell University

Davide M. Proserpio University of Milan

External Links

Wikipedia of Roald Hoffmann Personal website of Roald Hoffmann

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