Per E. M. Siegbahn

35.2k total citations · 5 hit papers
464 papers, 29.9k citations indexed

About

Per E. M. Siegbahn is a scholar working on Atomic and Molecular Physics, and Optics, Inorganic Chemistry and Molecular Biology. According to data from OpenAlex, Per E. M. Siegbahn has authored 464 papers receiving a total of 29.9k indexed citations (citations by other indexed papers that have themselves been cited), including 198 papers in Atomic and Molecular Physics, and Optics, 185 papers in Inorganic Chemistry and 129 papers in Molecular Biology. Recurrent topics in Per E. M. Siegbahn's work include Advanced Chemical Physics Studies (152 papers), Metal-Catalyzed Oxygenation Mechanisms (143 papers) and Photosynthetic Processes and Mechanisms (86 papers). Per E. M. Siegbahn is often cited by papers focused on Advanced Chemical Physics Studies (152 papers), Metal-Catalyzed Oxygenation Mechanisms (143 papers) and Photosynthetic Processes and Mechanisms (86 papers). Per E. M. Siegbahn collaborates with scholars based in Sweden, United States and China. Per E. M. Siegbahn's co-authors include Margareta R. A. Blomberg, Robert H. Crabtree, Fahmi Himo, Tomasz Borowski, B. Roos, Björn O. Roos, Mats Svensson, Rong‐Zhen Liao, Marcus Lundberg and Arianna Bassan and has published in prestigious journals such as Chemical Reviews, Proceedings of the National Academy of Sciences and Journal of the American Chemical Society.

In The Last Decade

Per E. M. Siegbahn

463 papers receiving 29.2k citations

Hit Papers

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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.

The complete active space SCF (CASSCF) method in a Newton–Raphson formulation with application to the HNO molecule

1981 990 citations Per E. M. Siegbahn et al. profile →
An accurate three-dimensional potential energy surface for H3

1978 684 citations Per E. M. Siegbahn et al. profile →
A New Intermolecular Interaction: UnconventionalHydrogen Bonds with Element−Hydride Bonds as ProtonAcceptor

1996 565 citations Per E. M. Siegbahn et al. profile →
Quantum Chemical Studies of Mechanisms for Metalloenzymes

2014 502 citations Margareta R. A. Blomberg, Per E. M. Siegbahn et al. profile →
Gaussian basis sets for the first and second row atoms

1970 449 citations Per E. M. Siegbahn et al. profile →

Author Peers

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

Author						Papers	Cites
Per E. M. Siegbahn	11.6k	9.8k	8.3k	7.7k	5.8k	464	29.9k
Sason Shaik	8.4k 0.7×	19.6k 2.0×	12.1k 1.5×	7.2k 0.9×	5.1k 0.9×	614	42.3k
Michel Dupuis	13.3k 1.1×	3.8k 0.4×	10.2k 1.2×	3.0k 0.4×	5.6k 1.0×	243	34.6k
Jürg Hutter	14.5k 1.2×	4.6k 0.5×	16.3k 2.0×	2.6k 0.3×	4.4k 0.8×	194	37.4k
Sharon Hammes‐Schiffer	7.8k 0.7×	3.2k 0.3×	5.5k 0.7×	6.0k 0.8×	5.5k 1.0×	401	21.9k
Maurizio Cossi	6.1k 0.5×	5.5k 0.6×	9.5k 1.1×	4.5k 0.6×	2.8k 0.5×	119	34.5k
Keiji Morokuma	18.0k 1.5×	10.2k 1.0×	13.3k 1.6×	7.2k 0.9×	2.2k 0.4×	831	50.1k
David A. Dixon	10.4k 0.9×	9.7k 1.0×	13.4k 1.6×	1.9k 0.2×	1.9k 0.3×	915	35.4k
Lars Goerigk	7.0k 0.6×	5.7k 0.6×	12.1k 1.5×	2.3k 0.3×	3.1k 0.5×	76	29.8k
Willard R. Wadt	7.8k 0.7×	11.1k 1.1×	13.3k 1.6×	2.6k 0.3×	3.5k 0.6×	38	38.1k
Jens Antony	7.9k 0.7×	8.4k 0.9×	23.4k 2.8×	3.4k 0.4×	7.8k 1.3×	32	48.2k

Countries citing papers authored by Per E. M. Siegbahn

Since Specialization

Citations

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

Fields of papers citing papers by Per E. M. Siegbahn

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Per E. M. Siegbahn. 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 Per E. M. Siegbahn. The network helps show where Per E. M. Siegbahn may publish in the future.

Co-authorship network of co-authors of Per E. M. Siegbahn

This figure shows the co-authorship network connecting the top 25 collaborators of Per E. M. Siegbahn. A scholar is included among the top collaborators of Per E. M. Siegbahn 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 Per E. M. Siegbahn. Per E. M. Siegbahn 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

Siegbahn, Per E. M.. (2025). The Mechanism of Nitrite Reductase. Journal of Computational Chemistry. 46(8). e70088–e70088. 2 indexed citations

Siegbahn, Per E. M. & Wenjie Wei. (2023). The energetics of N₂ reduction by vanadium containing nitrogenase. Physical Chemistry Chemical Physics. 26(3). 1684–1695. 4 indexed citations

Siegbahn, Per E. M.. (2023). The mechanism for N₂ activation in the E₄ – state of nitrogenase. Physical Chemistry Chemical Physics. 25(35). 23602–23613. 13 indexed citations

Chen, Shi‐Lu & Per E. M. Siegbahn. (2020). Insights into the Chemical Reactivity in Acetyl-CoA Synthase. Inorganic Chemistry. 59(20). 15167–15179. 12 indexed citations

Blomberg, Margareta R. A. & Per E. M. Siegbahn. (2015). Protonation of the binuclear active site in cytochrome c oxidase decreases the reduction potential of CuB. Biochimica et Biophysica Acta (BBA) - Bioenergetics. 1847(10). 1173–1180. 27 indexed citations

Blomberg, Margareta R. A. & Per E. M. Siegbahn. (2014). Proton pumping in cytochrome c oxidase: Energetic requirements and the role of two proton channels. Biochimica et Biophysica Acta (BBA) - Bioenergetics. 1837(7). 1165–1177. 34 indexed citations

Blomberg, Margareta R. A. & Per E. M. Siegbahn. (2013). Why is the reduction of NO in cytochrome c dependent nitric oxide reductase (cNOR) not electrogenic?. Biochimica et Biophysica Acta (BBA) - Bioenergetics. 1827(7). 826–833. 25 indexed citations

Siegbahn, Per E. M.. (2012). Water oxidation mechanism in photosystem II, including oxidations, proton release pathways, O―O bond formation and O2 release. Biochimica et Biophysica Acta (BBA) - Bioenergetics. 1827(8-9). 1003–1019. 339 indexed citations

Blomberg, Margareta R. A. & Per E. M. Siegbahn. (2011). The mechanism for proton pumping in cytochrome c oxidase from an electrostatic and quantum chemical perspective. Biochimica et Biophysica Acta (BBA) - Bioenergetics. 1817(4). 495–505. 53 indexed citations

10.

Blomberg, Margareta R. A. & Per E. M. Siegbahn. (2009). Quantum chemistry as a tool in bioenergetics. Biochimica et Biophysica Acta (BBA) - Bioenergetics. 1797(2). 129–142. 48 indexed citations

11.

Olsson, Mats H. M., Per E. M. Siegbahn, Margareta R. A. Blomberg, & Arieh Warshel. (2007). Exploring pathways and barriers for coupled ET/PT in cytochrome c oxidase: A general framework for examining energetics and mechanistic alternatives. Biochimica et Biophysica Acta (BBA) - Bioenergetics. 1767(3). 244–260. 42 indexed citations

12.

Siegbahn, Per E. M. & Margareta R. A. Blomberg. (2007). Energy diagrams and mechanism for proton pumping in cytochrome c oxidase. Biochimica et Biophysica Acta (BBA) - Bioenergetics. 1767(9). 1143–1156. 64 indexed citations

13.

Siegbahn, Per E. M.. (2007). Hybrid density functional study of the oxidized states of NiFe-hydrogenase. Comptes Rendus Chimie. 10(8). 766–774. 18 indexed citations

14.

Blomberg, Margareta R. A. & Per E. M. Siegbahn. (2006). Different types of biological proton transfer reactions studied by quantum chemical methods. Biochimica et Biophysica Acta (BBA) - Bioenergetics. 1757(8). 969–980. 54 indexed citations

15.

Blomberg, Margareta R. A., et al.. (2006). Reduction of nitric oxide in bacterial nitric oxide reductase—a theoretical model study. Biochimica et Biophysica Acta (BBA) - Bioenergetics. 1757(4). 240–252. 64 indexed citations

16.

Siegbahn, Per E. M. & Margareta R. A. Blomberg. (2005). Methods and models for studying mechanisms of redox-active enzymes. Philosophical Transactions of the Royal Society A Mathematical Physical and Engineering Sciences. 363(1829). 847–860. 17 indexed citations

17.

Bassan, Arianna, Margareta R. A. Blomberg, Per E. M. Siegbahn, & Lawrence Que. (2005). Two Faces of a Biomimetic Non‐Heme HOFe^VO Oxidant: Olefin Epoxidation versus cis‐Dihydroxylation. Angewandte Chemie International Edition. 44(19). 2939–2941. 88 indexed citations

18.

Blomberg, Margareta R. A., et al.. (2005). A theoretical study on nitric oxide reductase activity in a ba3-type heme-copper oxidase. Biochimica et Biophysica Acta (BBA) - Bioenergetics. 1757(1). 31–46. 48 indexed citations

19.

Siegbahn, Per E. M. & Margareta R. A. Blomberg. (2004). Important roles of tyrosines in Photosystem II and cytochrome oxidase. Biochimica et Biophysica Acta (BBA) - Bioenergetics. 1655(1-3). 45–50. 26 indexed citations

20.

Blomberg, Margareta R. A., Per E. M. Siegbahn, & Mårten Wikström. (2003). Metal-Bridging Mechanism for O−O Bond Cleavage in Cytochrome c Oxidase. Inorganic Chemistry. 42(17). 5231–5243. 83 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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