Chemists Without Knowing It?

This paper considers aspects of the chemistry-physics relationship from a historical perspective and with a focus on the entrance of quantum mechanics in twentieth-century chemistry. Traditionally, theoretical physics was widely regarded as epistemically superior to chemistry if also, from the chem...

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Main Author: Helge Kragh
Format: Article
Language:English
Published: Firenze University Press 2022-04-01
Series:Substantia
Subjects:
Online Access:https://riviste.fupress.net/index.php/subs/article/view/1564
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author Helge Kragh
author_facet Helge Kragh
author_sort Helge Kragh
collection DOAJ
description This paper considers aspects of the chemistry-physics relationship from a historical perspective and with a focus on the entrance of quantum mechanics in twentieth-century chemistry. Traditionally, theoretical physics was widely regarded as epistemically superior to chemistry if also, from the chemists’ point of view, of little practical relevance. With the emergence of quantum chemistry in about 1930, the gulf widened as it seemed that the new discipline was more physics than chemistry. One way of investigating theoretically many-electron atoms was by means of the Hartree-Fock approximation method. The Møller-Plesset perturbation theory introduced in 1934 by a Danish and an American physicist was a refinement to the Hartree-Fock method. Although the Møller-Plesset theory was initially neglected – and is still neglected in the historiography of quantum chemistry – it came to play a most important role in later studies. Indeed, it is a prime example of what in sociological studies of science is known as a “sleeping beauty.” The paper discusses the historical context of the Møller-Plesset theory, concluding that, in a sense, its originators were “chemists without knowing it.”
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spelling doaj.art-f19f20f79a4746688ed13defd523c65a2022-12-22T00:32:11ZengFirenze University PressSubstantia2532-39972022-04-0110.36253/Substantia-1564Chemists Without Knowing It? Helge Kragh0Niels Bohr Institute, University of Copenhagen, Denmark This paper considers aspects of the chemistry-physics relationship from a historical perspective and with a focus on the entrance of quantum mechanics in twentieth-century chemistry. Traditionally, theoretical physics was widely regarded as epistemically superior to chemistry if also, from the chemists’ point of view, of little practical relevance. With the emergence of quantum chemistry in about 1930, the gulf widened as it seemed that the new discipline was more physics than chemistry. One way of investigating theoretically many-electron atoms was by means of the Hartree-Fock approximation method. The Møller-Plesset perturbation theory introduced in 1934 by a Danish and an American physicist was a refinement to the Hartree-Fock method. Although the Møller-Plesset theory was initially neglected – and is still neglected in the historiography of quantum chemistry – it came to play a most important role in later studies. Indeed, it is a prime example of what in sociological studies of science is known as a “sleeping beauty.” The paper discusses the historical context of the Møller-Plesset theory, concluding that, in a sense, its originators were “chemists without knowing it.” https://riviste.fupress.net/index.php/subs/article/view/1564quantum chemistrychemistry-physics relationsMøller-Plesset theorychemistry Nobel Prizessleeping beauties
spellingShingle Helge Kragh
Chemists Without Knowing It?
Substantia
quantum chemistry
chemistry-physics relations
Møller-Plesset theory
chemistry Nobel Prizes
sleeping beauties
title Chemists Without Knowing It?
title_full Chemists Without Knowing It?
title_fullStr Chemists Without Knowing It?
title_full_unstemmed Chemists Without Knowing It?
title_short Chemists Without Knowing It?
title_sort chemists without knowing it
topic quantum chemistry
chemistry-physics relations
Møller-Plesset theory
chemistry Nobel Prizes
sleeping beauties
url https://riviste.fupress.net/index.php/subs/article/view/1564
work_keys_str_mv AT helgekragh chemistswithoutknowingit