Horst Köppel

13.5k total citations · 2 hit papers
253 papers, 11.1k citations indexed

About

Horst Köppel is a scholar working on Atomic and Molecular Physics, and Optics, Spectroscopy and Physical and Theoretical Chemistry. According to data from OpenAlex, Horst Köppel has authored 253 papers receiving a total of 11.1k indexed citations (citations by other indexed papers that have themselves been cited), including 221 papers in Atomic and Molecular Physics, and Optics, 66 papers in Spectroscopy and 56 papers in Physical and Theoretical Chemistry. Recurrent topics in Horst Köppel's work include Advanced Chemical Physics Studies (179 papers), Spectroscopy and Quantum Chemical Studies (98 papers) and Photochemistry and Electron Transfer Studies (43 papers). Horst Köppel is often cited by papers focused on Advanced Chemical Physics Studies (179 papers), Spectroscopy and Quantum Chemical Studies (98 papers) and Photochemistry and Electron Transfer Studies (43 papers). Horst Köppel collaborates with scholars based in Germany, France and Russia. Horst Köppel's co-authors include Lorenz S. Cederbaum, Wolfgang Domcke, David R. Yarkony, S. Mahapatra, Uwe Manthe, L. S. Cederbaum, Elmar Haller, Rolf Gleiter, Daniel B. Werz and Christian Bleiholder and has published in prestigious journals such as Journal of the American Chemical Society, Physical Review Letters and Angewandte Chemie International Edition.

In The Last Decade

Horst Köppel

250 papers receiving 10.8k citations

Hit Papers

align trajectories sort by overperformance

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Conical Intersections

2004 1.1k citations Wolfgang Domcke, David R. Yarkony et al. profile →
Multimode molecular dynamics beyond the Born-Oppenheimer approximation

1984 884 citations Horst Köppel, Wolfgang Domcke et al. profile →

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author						Papers	Cites
Horst Köppel	8.8k	2.9k	2.8k	1.2k	1.2k	253	11.1k
David R. Yarkony	10.1k 1.1×	2.9k 1.0×	3.2k 1.1×	1.7k 1.4×	1.3k 1.1×	264	11.9k
Hiroshi Nakatsuji	7.8k 0.9×	2.6k 0.9×	2.4k 0.8×	2.1k 1.7×	1.2k 1.0×	296	10.6k
Ove Christiansen	10.2k 1.2×	3.9k 1.4×	3.9k 1.4×	2.6k 2.1×	1.2k 1.0×	215	13.6k
Hans Jørgen Aa. Jensen	7.1k 0.8×	1.9k 0.6×	2.7k 1.0×	1.6k 1.3×	1.1k 0.9×	161	9.2k
Klaus Ruedenberg	8.4k 1.0×	3.6k 1.2×	2.5k 0.9×	2.1k 1.7×	1.4k 1.2×	196	11.9k
Sotiris S. Xantheas	9.7k 1.1×	2.2k 0.8×	3.8k 1.4×	2.0k 1.6×	521 0.4×	210	12.9k
Charles B. Harris	4.8k 0.5×	1.9k 0.7×	1.5k 0.5×	2.3k 1.8×	1.6k 1.3×	233	9.0k
A. D. Buckingham	9.9k 1.1×	2.5k 0.9×	7.8k 2.8×	2.1k 1.7×	814 0.7×	276	15.3k
Jeppe Olsen	13.3k 1.5×	2.9k 1.0×	4.8k 1.7×	3.2k 2.6×	1.5k 1.2×	192	16.9k
So Hirata	6.7k 0.8×	2.2k 0.8×	1.6k 0.6×	2.5k 2.0×	1.5k 1.3×	168	9.5k

Countries citing papers authored by Horst Köppel

Since Specialization

Citations

This map shows the geographic impact of Horst Köppel's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Horst Köppel with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Horst Köppel more than expected).

Fields of papers citing papers by Horst Köppel

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Horst Köppel. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Horst Köppel. The network helps show where Horst Köppel may publish in the future.

Co-authorship network of co-authors of Horst Köppel

This figure shows the co-authorship network connecting the top 25 collaborators of Horst Köppel. A scholar is included among the top collaborators of Horst Köppel based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Horst Köppel. Horst Köppel is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Chattopadhyay, Anjan, et al.. (2025). Theoretical Study of Spectroscopy and Photodynamics of Decatetraene as a Representative Dimethylated Polyene. The Journal of Physical Chemistry A. 129(10). 2442–2453.

Köppel, Horst, et al.. (2024). Fully quantal description of combined internal conversion and intersystem crossing processes in the smallest Criegee intermediate CH₂OO. Physical Chemistry Chemical Physics. 26(37). 24591–24606. 1 indexed citations

Трофимов, А. Б., et al.. (2022). Vibronic coupling in the ground and excited states of the imidazole radical cation. The Journal of Chemical Physics. 157(17). 174309–174309. 4 indexed citations

Трофимов, А. Б., et al.. (2020). Vibronic coupling in the ground and excited states of the pyridine radical cation. The Journal of Chemical Physics. 153(16). 164307–164307. 13 indexed citations

Galbraith, M. C. E., Simona Scheit, Nikolay V. Golubev, et al.. (2017). Few-femtosecond passage of conical intersections in the benzene cation. Nature Communications. 8(1). 1018–1018. 48 indexed citations

Ottiger, Philipp, et al.. (2015). Analysis of the S₂←S₀ vibronic spectrum of the ortho-cyanophenol dimer using a multimode vibronic coupling approach. The Journal of Chemical Physics. 142(8). 84308–84308. 13 indexed citations

Lévêque, Camille, Daniel Peláez, Horst Köppel, & Richard Taïeb. (2014). Direct observation of spin-forbidden transitions through the use of suitably polarized light. Nature Communications. 5(1). 4126–4126. 16 indexed citations

Klatt, Günter, Rong Xu, Markus Pernpointner, et al.. (2013). Are β‐H‐Eliminations or Alkene Insertions Feasible Elementary Steps in Catalytic Cycles Involving Gold(I) Alkyl Species or Gold(I) Hydrides?. Chemistry - A European Journal. 19(12). 3954–3961. 63 indexed citations

Domcke, Wolfgang, David R. Yarkony, & Horst Köppel. (2011). Conical Intersections. 332 indexed citations

10.

Domcke, Wolfgang, David R. Yarkony, & Horst Köppel. (2011). Theory, computation and experiment. WORLD SCIENTIFIC eBooks. 5 indexed citations

11.

Bâldea, Ioan & Horst Köppel. (2010). Photoionization and Far Infrared Absorption of Single-Electron Transistors: Theoretical Results and Experiment Proposals. e-Journal of Surface Science and Nanotechnology. 8. 1–5. 2 indexed citations

12.

Xu, Rong, Günter Klatt, Hubert Wadepohl, & Horst Köppel. (2010). Hydrogen Scrambling in [(C₅R₅)(L)M(H)(C₂H₄)]⁺(M = Co, Rh). Relation of Experimental Kinetic Data to the Barriers of the Elementary Reaction Steps. Inorganic Chemistry. 49(7). 3289–3296. 12 indexed citations

13.

Gindensperger, Etienne, Horst Köppel, & Chantal Daniel. (2010). Mechanism of visible-light photoisomerization of a rhenium(i) carbonyl–diimine complex. Chemical Communications. 46(43). 8225–8225. 37 indexed citations

14.

Mülhaupt, Rolf, et al.. (2010). Hydridoboranes as Modifiers for Single‐Site Organochromium Catalysts: From Low‐ to Ultrahigh‐Molecular‐Weight Polyethylene. Angewandte Chemie International Edition. 49(46). 8751–8754. 21 indexed citations

15.

Köppel, Horst, David R. Yarkony, & H. Barentzen. (2009). The Jahn-Teller effect : fundamentals and implications for physics and chemistry. CERN Document Server (European Organization for Nuclear Research). 90 indexed citations

16.

Domcke, Wolfgang, David R. Yarkony, & Horst Köppel. (2004). Electronic structure, dynamics & spectroscopy. WORLD SCIENTIFIC eBooks. 2 indexed citations

17.

Köppel, Horst. (2004). Regularized diabatic states and quantum dynamics on intersecting potential energy surfaces. Faraday Discussions. 127. 35–47. 48 indexed citations

18.

Müller, H. U., Horst Köppel, & Lorenz S. Cederbaum. (1993). Topology and dynamics of vibronically coupled potential energy surfaces : general aspects and application to the ozone cation. New Journal of Chemistry. 17. 7–29. 30 indexed citations

19.

Köppel, Horst, Wolfgang Domcke, & Lorenz S. Cederbaum. (1984). Multimode molecular dynamics beyond the Born-Oppenheimer approximation. 57. 59–246. 884 indexed citations breakdown →

20.

Köppel, Horst, Lorenz S. Cederbaum, Wolfgang Domcke, & Sason Shaik. (1983). Symmetry Breaking and Non‐Born‐Oppenheimer Effects in Radical Cations. Angewandte Chemie International Edition in English. 22(3). 210–224. 60 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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