Clemens Roothaan

Dutch-American physicist (1918-2019)
Person human Q2978871
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Clemens Roothaan

Summary

Clemens Roothaan is a human[1]. He was born in Nijmegen[2]. He was born on +1918-08-29T00:00:00Z[3]. He passed away in Chicago[4]. He died on +2019-06-17T00:00:00Z[5]. He worked as a physicist[6], chemist[7], and university teacher[8]. He ranks in the top 0.73% of human entities by monthly Wikipedia readership (4 views/month, #7,298 of 1,000,298).[9]

Key Facts

  • Born in Nijmegen[2], Clemens Roothaan…
  • Clemens Roothaan died in Chicago[4].
  • Clemens Roothaan was born on +1918-08-29T00:00:00Z[3].
  • Clemens Roothaan died on +2019-06-17T00:00:00Z[5].
  • Clemens Roothaan held citizenship in Kingdom of the Netherlands[10].
  • Clemens Roothaan's professions included physicist[6].
  • Clemens Roothaan worked as a chemist[7].
  • Clemens Roothaan's professions included university teacher[8].
  • Among Clemens Roothaan's employers was University of Chicago[11].
  • Among Clemens Roothaan's employers was The Catholic University of America[12].
  • Clemens Roothaan was educated at University of Chicago[13].
  • Clemens Roothaan's education included a stint at Delft University of Technology[14].
  • Clemens Roothaan received the Guggenheim Fellowship[15].
  • Clemens Roothaan was a member of International Academy of Quantum Molecular Science[16].
  • Clemens Roothaan was a member of Royal Netherlands Academy of Arts and Sciences[17].
  • Clemens Roothaan is recorded as male[18].
  • Clemens Roothaan's instance of is recorded as human[19].
  • Clemens Roothaan's VIAF cluster ID is recorded as 317117262[20].
  • Clemens Roothaan's Library of Congress authority ID is recorded as no2015112453[21].
  • Clemens Roothaan's Freebase ID is recorded as /m/0b342z[22].
  • Clemens Roothaan's family name is recorded as Roothaan[23].
  • Clemens Roothaan's given name is recorded as Clemens[24].
  • Clemens Roothaan's NLA Trove people ID is recorded as 843007[25].
  • Clemens Roothaan's zbMATH author ID is recorded as roothaan.c-c-j[26].
  • Clemens Roothaan's Academic Tree ID is recorded as 51103[27].

Body

Origins and Family

Clemens Roothaan's place of birth was Nijmegen[2]. He was born on +1918-08-29T00:00:00Z[3].

Education

Educated at University of Chicago[13], a private university[28], in United States[29], founded in 1890[30], headquartered in Chicago[31] and Delft University of Technology[14], an institute of technology[32], in Netherlands[33], founded in 1842[34], headquartered in Delft[35].

Career and Affiliations

Recorded occupations include physicist[6], chemist[7], and university teacher[8]. Employers include University of Chicago[11], a private university[36], in United States[37], founded in 1890[38], headquartered in Chicago[39] and The Catholic University of America[12], a Catholic university[40], in United States[41], founded in 1887[42].

Recognition

Clemens Roothaan received the Guggenheim Fellowship[15].

Death and Burial

Clemens Roothaan died on +2019-06-17T00:00:00Z[5]. He passed away in Chicago[4].

Why It Matters

Clemens Roothaan ranks in the top 0.73% of human entities by monthly Wikipedia readership (4 views/month, #7,298 of 1,000,298).[9] He has Wikipedia articles in 7 language editions, a strong signal of global cultural recognition.[43] He is known by 10 alternative names across languages and contexts.[44]

FAQs

Where was Clemens Roothaan born?

Clemens Roothaan's place of birth was Nijmegen[2].

Where did Clemens Roothaan die?

Clemens Roothaan passed away in Chicago[4].

What did Clemens Roothaan do for work?

Clemens Roothaan worked as physicist[6], chemist[7], and university teacher[8].

Where did Clemens Roothaan go to school?

Clemens Roothaan was educated at University of Chicago[13] and Delft University of Technology[14].

What awards did Clemens Roothaan receive?

Honors received include Guggenheim Fellowship[15].

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] . Q110279963. Retrieved . wikidata.org.
  2. [4] . wikidata.org.
  3. [18] . wikidata.org.
  4. [10] . wikidata.org.
  5. [19] . wikidata.org.
  6. [13] . wikidata.org.
  7. [14] . wikidata.org.
  8. [6] . wikidata.org.
  9. [7] . wikidata.org.
  10. [8] . wikidata.org.
  11. [11] . wikidata.org.
  12. [12] . wikidata.org.
  13. [15] . Guggenheim Fellows database. wikidata.org.
  14. [20] . wikidata.org.
  15. [21] . wikidata.org.
  16. [16] . wikidata.org.
  17. [17] . wikidata.org.
  18. [3] . Q110279963. Retrieved . wikidata.org.
  19. [5] . qtp.ufl.edu. Retrieved . qtp.ufl.edu. Provenance: wikidata.org.
  20. [22] . Freebase Data Dumps. wikidata.org.
  21. [23] . wikidata.org.
  22. [24] . wikidata.org.
  23. [25] . wikidata.org.
  24. [26] . wikidata.org.
  25. [27] . wikidata.org.

Inline context (facts about related entities)

  1. [28] . Wikidata. wikidata.org. → on this site
  2. [29] . Wikidata. wikidata.org. → on this site
  3. [30] . Wikidata. wikidata.org. → on this site
  4. [31] . Wikidata. wikidata.org. → on this site
  5. [32] . Wikidata. wikidata.org. → on this site
  6. [33] . Wikidata. wikidata.org. → on this site
  7. [34] . Wikidata. wikidata.org. → on this site
  8. [35] . Wikidata. wikidata.org. → on this site
  9. [36] . Wikidata. wikidata.org. → on this site
  10. [37] . Wikidata. wikidata.org. → on this site
  11. [38] . Wikidata. wikidata.org. → on this site
  12. [39] . Wikidata. wikidata.org. → on this site
  13. [40] . Wikidata. wikidata.org. → on this site
  14. [41] . Wikidata. wikidata.org. → on this site
  15. [42] . Wikidata. wikidata.org. → on this site

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [9] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [43] . Wikidata sitelinks. wikidata.org.
  3. [44] . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Clemens Roothaan. Retrieved April 10, 2026, from https://4ort.xyz/entity/clemens-roothaan
MLA “Clemens Roothaan.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Apr. 2026, https://4ort.xyz/entity/clemens-roothaan.
BibTeX @misc{4ortxyz_clemens-roothaan_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Clemens Roothaan}}, year = {2026}, url = {https://4ort.xyz/entity/clemens-roothaan}, note = {Accessed: 2026-04-10}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Clemens Roothaan — https://4ort.xyz/entity/clemens-roothaan (retrieved 2026-04-10)

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