Niels Janniksen Bjerrum (11 March 1879 in Copenhagen – 30 September 1958) was a Danish chemist.[1]
Niels Bjerrum was the son of ophthalmologist Jannik Petersen Bjerrum, and started to study at the University of Copenhagen in 1897. He received his Master's degree in 1902 and his Doctor's degree in 1908, and did research in coordination complex chemistry under Sophus Mads Jørgensen. He became a docent in 1912, and in 1914 he became a professor of chemistry at the Royal Agricultural College (Landbohøjskolen) in Copenhagen, as successor of Odin Tidemand Christensen. He stayed on this post until his retirement in 1949, and from 1939 to 1946 he was also the Director of the College.
Importantly, Bjerrum introduced the concept of three forms of molecular energy, translational, vibrational and rotational which was important in understanding vibrational spectroscopy.[2] He is also noted for the theory behind the Bjerrum length, and the Bjerrum plot. Bjerrum also performed some of the first research on the measurement of soil acidity.[3]
His son Jannik Bjerrum (1909–1992) also became a chemist and was active in the area of complex chemistry.[4][5]
^"Obituary: Professor Niels J. Bjerrum". Transactions of the Faraday Society. 55: X001. 1959. doi:10.1039/TF959550X001.
^Jones, R. Norman (1985). chapter 1 in Analytical applications of vibrational spectroscopy-A historical reviewChemical, Biological and Industrial application of Infrared Spectroscopy edited by James R. Durig. pp. 1–50. ISBN 0-471-90834-7.
^Investigations of the Factors Which Determine the Reaction of Soil (1919) (Archive) by Niels Janniksen Bjerrum and J. K. Gjaldbæk. Published in Den Kongelige Veterinær-og Landbohøjskole Aarsskrift (1919). Translated by J. Rundo in 1956 and archived at the Atomic Energy Research Establishment (Harwell Laboratory, Oxfordshire) library.
^Jørgensen, Christian K. (1994). "Jannik Bjerrum's Later Life—Turning Toward Chemical Physics". Coordination Chemistry. ACS Symposium Series. Vol. 565. pp. 116–125. doi:10.1021/bk-1994-0565.ch009. ISBN 0-8412-2950-3.
^Schäffer, Claus E. (1994). "Jannik Bjerrum (1909-1992)". Coordination Chemistry. ACS Symposium Series. Vol. 565. pp. 96–114. doi:10.1021/bk-1994-0565.ch008. ISBN 0-8412-2950-3.
Niels Janniksen Bjerrum (11 March 1879 in Copenhagen – 30 September 1958) was a Danish chemist. NielsBjerrum was the son of ophthalmologist Jannik Petersen...
A Bjerrum plot (named after NielsBjerrum), sometimes also known as a Sillén diagram (after Lars Gunnar Sillén), or a Hägg diagram (after Gunnar Hägg)...
responsible for the electrical properties of ice. It was first proposed by NielsBjerrum in 1952 in order to explain the electrical polarization of ice in an...
The Bjerrum length (after Danish chemist NielsBjerrum 1879–1958 ) is the separation at which the electrostatic interaction between two elementary charges...
Bjerrum was the father of the chemist NielsBjerrum and the brother of physicist Kirstine Meyer. "Jannik Peterson Bjerrum". Kluwer Academic. Retrieved 15 May...
characterized by means of vibrational spectroscopy, as introduced by NielsBjerrum, and dielectric-loss spectroscopy. Schematic representations Fully solvated...
natural sciences. Kirstine Bjerrum was born in Skærbæk, Denmark and died in Hellerup. She was the daughter of Niels Janniksen Bjerrum (1826-1880) and Christiane...
trisulfur dicyanides. The subject then lay fallow until the 1910s, when NielsBjerrum began investigating gold thiocyanate complexes. Some eliminated reductively...
discusses many of Niels Bohr's precursors, including Arthur W. Conway, Penry Vaughan Bevan, John William Nicholson, and NielsBjerrum. Chapter five switches...
areas of application in chemistry, biology and medicine. Jannik Bjerrum (son of NielsBjerrum) developed the first general method for the determination of...
org. April 2020. Retrieved 11 November 2020. "Nomination Archive – NielsBjerrum". NobelPrize.org. April 2020. Retrieved 11 November 2020. "Nomination...
–15. juli 1916. Kristiania, 1918 J.N.F. Wille (chair) Eugen Warming NielsBjerrum Lennart von Post Kaj Birket-Smith Johannes Brøndsted Johannes Fibiger...
Oluf Bang Wilhelm Otto Bentzon Julius Bertram-Larsen Rasmus Besthorn NielsBjerrum H.A. Brendekilde Angelo Bruun (nedlagt) Peter Buch Johan Frederik Busch...
a Bjerrum electrostatic analysis of carboxylic acids. Their Kirkwood-Westheimer model for an ellipsoid cavity reconciles the work of NielsBjerrum on...
Stanley Shoveller William Smith Cyril Wilkinson Denmark (DEN) Hans Bjerrum Ejvind Blach Niels Blach Steen Due Thorvald Eigenbrod Frands Faber Hans Jørgen Hansen...
main focus of the logo of the Young Academy of Denmark. 2011/2012: Emil Bjerrum-Bohr, Petrine Wellendorph 2013: Rubina Raja, Thomas Bjørnskov Poulsen 2014:...
member of the Danish resistance executed by the German occupying power Hans Bjerrum (1899 in Hellerup – 1979) a Danish field hockey player, team silver medallist...
including the Tagea Brandt Rejselegat (1943) and the Niels Larsen Stevns prize (1973). Bjerrum, Laura. "Dagmar Starcke" (in Danish). Kunstindeks Danmark...
Harper, David A. T.; Bond, David P. G.; Nielsen, Arne T.; Bjerrum, Christian J.; Schovsbo, Niels H.; Schönlaub, Hans P.; Zalasiewicz, Jan A.; Canfield, Donald...
deficiency spots of keratin deposition in the conjunctiva Bjerrum scotoma Jannik Peterson Bjerrum ophthalmology glaucoma comet shaped visual field defect...
Stanley Shoveller William Smith Cyril Wilkinson Denmark (DEN) Hans Bjerrum Ejvind Blach Niels Blach Steen Due Thorvald Eigenbrod Frands Faber Hans Jørgen Hansen...
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