{{Short description|Dutch chemist (1908–2001)}} [[File:KetelaarZernike1955.jpg|thumb|Ketelaar(left) with Frits Zernike, November 1955.]] '''Jan Arnold Albert Ketelaar''' (21 April 1908, Amsterdam {{ndash}} 23 November 2001, Lochem)<ref name=knaw>{{cite web|author= |url=https://www.dwc.knaw.nl/biografie/pmknaw/?pagetype=authorDetail&aId=PE00001243 |title=J.A.A. Ketelaar (1908 - 2001) |publisher=Royal Netherlands Academy of Arts and Sciences |date= |accessdate=3 May 2020}}</ref><ref name="Daling2011">{{cite book|author=Dorien Daling|title=Stofwisselingen: Nederlandse uitgevers en de heruitvinding van het natuurwetenschappelijke tijdschrift, 1945-1970|url=https://books.google.com/books?id=XZtHAwAAQBAJ&pg=PA99|date=1 November 2011|publisher=Uitgeversmaatschappij Walburg Pers|isbn=978-90-5730-731-7|page=99}}</ref> was a Dutch chemist and author of the textbook ''Chemical Constitution: an Introduction to the Theory of the Chemical Bond'' ({{lang|nl|De chemische binding. Inleiding in de theoretische chemie}}).<ref name="Hoytink 1970">{{cite journal |last1=Hoytink |first1=G J |title=Physical Chemistry in the Netherlands after Van't Hoff |journal=Annual Review of Physical Chemistry |date=October 1970 |volume=21 |issue=1 |pages=1–17 |doi=10.1146/annurev.pc.21.100170.000245|doi-access= }}</ref><ref name="Ketelaar 1953">{{cite book |last1=Ketelaar |first1=J.A.A. |title=Chemical Constitution: an Introduction to the Theory of the Chemical Bond |date=1953}}</ref> Van Arkel–Ketelaar triangles are named after him.<ref name="WellerOverton2018">{{cite book|author1=Mark Weller|author2=Tina Overton|author3=Fraser Armstrong|editor1=Jonathan Rourke|title=Inorganic Chemistry|url=https://books.google.com/books?id=cmZaDwAAQBAJ&pg=PA56|year=2018|publisher=Oxford University Press|isbn=978-0-19-876812-8|page=56}}</ref>
Ketelaar's doctoral students included Sol Kimel and Robert de Levie.<ref name=levie>{{cite web|author= |url=http://www.albumacademicum.uva.nl/cgi/b/bib/bib-idx?type=simple;lang=nl;c=ap;rgn1=entirerecord;q1=Levie;x=0;y=0;cc=ap;view=reslist;sort=achternaam;fmt=long;page=reslist;start=3;size=1 |archive-url=https://web.archive.org/web/20200830143848/http://www.albumacademicum.uva.nl/cgi/b/bib/bib-idx?type=simple&lang=nl&c=ap&rgn1=entirerecord&q1=Levie&x=0&y=0&cc=ap&view=reslist&sort=achternaam&fmt=long&page=reslist&start=3&size=1 |title=R. de Levie, 1933 - |language=Dutch |publisher=University of Amsterdam |date= |archive-date=30 August 2020}}</ref><ref name=kimel>{{cite web|author= |url=http://www.albumacademicum.uva.nl/cgi/b/bib/bib-idx?type=simple;lang=nl;c=ap;rgn1=entirerecord;q1=Kimel;x=0;y=0;cc=ap;view=reslist;sort=achternaam;fmt=long;page=reslist;start=1;size=1 |archive-url=https://web.archive.org/web/20200614093806/http://www.albumacademicum.uva.nl/cgi/b/bib/bib-idx?type=simple;lang=nl;c=ap;rgn1=entirerecord;q1=Kimel;x=0;y=0;cc=ap;view=reslist;sort=achternaam;fmt=long;page=reslist;start=1;size=1 |title=S. Kimel, 1928 - |language=Dutch |publisher=University of Amsterdam |date= |archive-date=14 June 2020}}</ref> He was elected a member of the Royal Netherlands Academy of Arts and Sciences in 1958.<ref name=knaw/>
==References== {{reflist|30em}} {{Authority control}} {{DEFAULTSORT:Ketelaar, Jan}} Category:1908 births Category:2001 deaths Category:20th-century Dutch chemists Category:Members of the Royal Netherlands Academy of Arts and Sciences Category:Scientists from Amsterdam
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