Clemens Roothaan

32 papers and 9.7k indexed citations i.

About

Clemens Roothaan is a scholar working on Atomic and Molecular Physics, and Optics, Physical and Theoretical Chemistry and Computational Theory and Mathematics. According to data from OpenAlex, Clemens Roothaan has authored 32 papers receiving a total of 9.7k indexed citations (citations by other indexed papers that have themselves been cited), including 16 papers in Atomic and Molecular Physics, and Optics, 8 papers in Physical and Theoretical Chemistry and 5 papers in Computational Theory and Mathematics. Recurrent topics in Clemens Roothaan’s work include Advanced Chemical Physics Studies (9 papers), Atomic and Molecular Physics (9 papers) and Advanced Physical and Chemical Molecular Interactions (5 papers). Clemens Roothaan is often cited by papers focused on Advanced Chemical Physics Studies (9 papers), Atomic and Molecular Physics (9 papers) and Advanced Physical and Chemical Molecular Interactions (5 papers). Clemens Roothaan collaborates with scholars based in United States and Mexico. Clemens Roothaan's co-authors include W Kołos, Howard D. Cohen, A. W. Weiss, Lester M. Sachs, E. Clementi, M. Yoshimine, Jürgen Hinze, Paul S. Kelly, R. A. Sack and Arnold C. Wahl and has published in prestigious journals such as Proceedings of the National Academy of Sciences, The Journal of Chemical Physics and Reviews of Modern Physics.

In The Last Decade

Co-authorship network of co-authors of Clemens Roothaan i

Fields of papers citing papers by Clemens Roothaan

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Clemens Roothaan. 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 Clemens Roothaan. The network helps show where Clemens Roothaan may publish in the future.

Countries citing papers authored by Clemens Roothaan

Since Specialization
Citations

This map shows the geographic impact of Clemens Roothaan'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 Clemens Roothaan with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Clemens Roothaan more than expected).

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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2025