Keith Laidler
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Keith James Laidler (January 3, 1916 – August 26, 2003), born in
England England is a Countries of the United Kingdom, country that is part of the United Kingdom. It is located on the island of Great Britain, of which it covers about 62%, and List of islands of England, more than 100 smaller adjacent islands. It ...
, was notable as a pioneer in
chemical kinetics Chemical kinetics, also known as reaction kinetics, is the branch of physical chemistry that is concerned with understanding the rates of chemical reactions. It is different from chemical thermodynamics, which deals with the direction in which a ...
and authority on the
physical chemistry Physical chemistry is the study of macroscopic and microscopic phenomena in chemical systems in terms of the principles, practices, and concepts of physics such as motion, energy, force, time, thermodynamics, quantum chemistry, statistical mech ...
of
enzymes An enzyme () is a protein that acts as a biological catalyst by accelerating chemical reactions. The molecules upon which enzymes may act are called substrates, and the enzyme converts the substrates into different molecules known as pro ...
.


Education

Laidler received his early education at
Liverpool College Liverpool College is a coeducational day and boarding school in Mossley Hill, Liverpool, England. It was one of the thirteen founding members of the Headmasters' and Headmistresses' Conference, Headmasters' Conference. History Liverpool Coll ...
. He received his BA (1934) and MA (1938) degrees from
Oxford University The University of Oxford is a collegiate research university in Oxford, England. There is evidence of teaching as early as 1096, making it the oldest university in the English-speaking world and the second-oldest continuously operating u ...
as a student of
Trinity College Trinity College may refer to: Australia * Trinity Anglican College, an Anglican coeducational primary and secondary school in , New South Wales * Trinity Catholic College, Auburn, a coeducational school in the inner-western suburbs of Sydney, New ...
.Keith James Laidler, Physical Chemistry, A pioneer in the field of chemical kinetics and activated-complex theory
The science.ca team, GCS Research Society (2001 and 2015).
Keith J. Laidler (1916–2003)
Division of History of Chemistry of the American Chemical Society (2006)
His MA was in the area of
chemical kinetics Chemical kinetics, also known as reaction kinetics, is the branch of physical chemistry that is concerned with understanding the rates of chemical reactions. It is different from chemical thermodynamics, which deals with the direction in which a ...
under
Cyril Hinshelwood Sir Cyril Norman Hinshelwood (19 June 1897 – 9 October 1967) was a British physical chemist and expert in chemical kinetics. His work in reaction mechanisms earned the 1956 Nobel Prize in chemistry. Education Born in London, his parents w ...
. He completed his PhD in 1940 from
Princeton University Princeton University is a private university, private Ivy League research university in Princeton, New Jersey, United States. Founded in 1746 in Elizabeth, New Jersey, Elizabeth as the College of New Jersey, Princeton is the List of Colonial ...
, with a thesis entitled: ''The Kinetics of Reactions in Condensed and Heterogeneous Systems,'' under Henry Eyring. He was a
National Research Council of Canada The National Research Council Canada (NRC; ) is the primary national agency of the Government of Canada dedicated to science and technology research and development. It is the largest federal research and development organization in Canada. Th ...
Postdoctoral Fellow (1940–1942). He died in Ottawa in 2003.


Career

After a decade at the
Catholic University of America The Catholic University of America (CUA) is a private Catholic research university in Washington, D.C., United States. It is one of two pontifical universities of the Catholic Church in the United States – the only one that is not primarily a ...
(1946-1955), he spent the remainder of his academic career at the
University of Ottawa The University of Ottawa (), often referred to as uOttawa or U of O, is a Official bilingualism in Canada, bilingual public research university in Ottawa, Ontario, Canada. The main campus is located on directly to the northeast of Downtown Ot ...
(1955–1981), where he served as Chairman of the Department of Chemistry and Vice-Dean of the Faculty of Science. He was the author of 13 books and more than 250 articles. In his early years he worked with Cyril Hinshelwood on the theory of chemical kinetics, extending this during his doctoral work to the theory of absolute reaction rates with Henry Eyring and Samuel Glasstone. As an independent researcher in Ottawa he worked increasingly on enzymes, with both theoretical and experimental studies. He wrote several books of chemistry, and among these ''The Chemical Kinetics of Enzyme Action'' (1958) was for more than ten years by far the most important source of information on the subject. A second edition, written with Peter S. Bunting, appeared in 1973. After his retirement Laidler increasingly worked on the history of science, and wrote books on the history of physical chemistry and its relationship with technology. Laidler was a Fellow of the
Royal Society of Canada The Royal Society of Canada (RSC; , SRC), also known as the Academies of Arts, Humanities, and Sciences of Canada (French: ''Académies des arts, des lettres et des sciences du Canada''), is the senior national, bilingual council of distinguishe ...
, which described him "as one of the twentieth-century pioneers in the remarkable progress made in
chemical kinetics Chemical kinetics, also known as reaction kinetics, is the branch of physical chemistry that is concerned with understanding the rates of chemical reactions. It is different from chemical thermodynamics, which deals with the direction in which a ...
leading to the development of
transition state theory In chemistry, transition state theory (TST) explains the reaction rates of elementary chemical reactions. The theory assumes a special type of chemical equilibrium (quasi-equilibrium) between reactants and activated transition state complexes. ...
which provides the modern kinetic theory. Laidler's work includes seminal contributions in several areas of the field: gas phase reactions; kinetic aspects of reactivity of electronically excited molecules and construction of
potential energy surface A potential energy surface (PES) or energy landscape describes the energy of a Physical system, system, especially a collection of atoms, in terms of certain Parameter, parameters, normally the positions of the atoms. The Surface (mathematics), ...
s for such processes; development of treatments for kinetics and mechanisms for surface reactions and
solution Solution may refer to: * Solution (chemistry), a mixture where one substance is dissolved in another * Solution (equation), in mathematics ** Numerical solution, in numerical analysis, approximate solutions within specified error bounds * Solu ...
reactions, introducing modern concepts of
solvation Solvations describes the interaction of a solvent with dissolved molecules. Both ionized and uncharged molecules interact strongly with a solvent, and the strength and nature of this interaction influence many properties of the solute, includi ...
through
dielectric polarization In electromagnetism, a dielectric (or dielectric medium) is an electrical insulator that can be polarised by an applied electric field. When a dielectric material is placed in an electric field, electric charges do not flow through the materia ...
effects in the treatment of ionic
redox Redox ( , , reduction–oxidation or oxidation–reduction) is a type of chemical reaction in which the oxidation states of the reactants change. Oxidation is the loss of electrons or an increase in the oxidation state, while reduction is t ...
reactions and of reactions producing or consuming ions; gas phase
free-radical In chemistry, a radical, also known as a free radical, is an atom, molecule, or ion that has at least one unpaired valence electron. With some exceptions, these unpaired electrons make radicals highly chemically reactive. Many radicals spont ...
reactions involving
pyrolysis Pyrolysis is a process involving the Bond cleavage, separation of covalent bonds in organic matter by thermal decomposition within an Chemically inert, inert environment without oxygen. Etymology The word ''pyrolysis'' is coined from the Gree ...
and other
thermal decomposition Thermal decomposition, or thermolysis, is a chemical decomposition of a substance caused by heat. The decomposition temperature of a substance is the temperature at which the substance chemically decomposes. The reaction is usually endothermic ...
processes; and … the kinetics of enzyme-catalyzed reactions."


Honors

Laidler's numerous honors include the University of Ottawa's Award for Excellence in Research (1971), the Chemical Institute of Canada's Union Carbide Award for Chemical Education (1974) as well as the Queen's Jubilee Medal (1977), the
Centenary Medal The Centenary Medal is an award which was created by the Australian Government in 2001. It was established to commemorate the centenary of the Federation of Australia and to recognise "people who made a contribution to Australian society or g ...
(1982), and the
Henry Marshall Tory Medal The Henry Marshall Tory Medal is an award of the Royal Society of Canada The Royal Society of Canada (RSC; , SRC), also known as the Academies of Arts, Humanities, and Sciences of Canada (French: ''Académies des arts, des lettres et des scienc ...
(1987), all from the
Royal Society of Canada The Royal Society of Canada (RSC; , SRC), also known as the Academies of Arts, Humanities, and Sciences of Canada (French: ''Académies des arts, des lettres et des sciences du Canada''), is the senior national, bilingual council of distinguishe ...
, and honorary degrees from
Simon Fraser University Simon Fraser University (SFU) is a Public university, public research university in British Columbia, Canada. It maintains three campuses in Greater Vancouver, respectively located in Burnaby (main campus), Surrey, British Columbia, Surrey, and ...
,
Burnaby Burnaby is a city in the Lower Mainland region of British Columbia, Canada. Located in the centre of the Burrard Peninsula, it neighbours the City of Vancouver to the west, the District of North Vancouver across the confluence of the Burrard In ...
,
British Columbia British Columbia is the westernmost Provinces and territories of Canada, province of Canada. Situated in the Pacific Northwest between the Pacific Ocean and the Rocky Mountains, the province has a diverse geography, with rugged landscapes that ...
, Canada (1997) and from the
University of Lethbridge The University of Lethbridge (also known as uLethbridge, uLeth, and U of L) is a public comprehensive and research university located in Lethbridge, Alberta, Canada, with a second campus in Calgary, Alberta. Founded in the liberal arts traditio ...
,
Alberta Alberta is a Provinces and territories of Canada, province in Canada. It is a part of Western Canada and is one of the three Canadian Prairies, prairie provinces. Alberta is bordered by British Columbia to its west, Saskatchewan to its east, t ...
, Canada (1999). For his work in the history of physical chemistry the American Chemical Society's Division of the History of Chemistry awarded him its Dexter Award "for outstanding contributions to the history of chemistry" (1996). Laidler retired in 1981 but continued to lecture as professor emeritus. He died on August 26, 2003. In 2004, the Canadian Society for Chemistry renamed their Noranda Award as the Keith Laidler Award in his memory.


See also

*
Chemical kinetics Chemical kinetics, also known as reaction kinetics, is the branch of physical chemistry that is concerned with understanding the rates of chemical reactions. It is different from chemical thermodynamics, which deals with the direction in which a ...
*
Enzymes An enzyme () is a protein that acts as a biological catalyst by accelerating chemical reactions. The molecules upon which enzymes may act are called substrates, and the enzyme converts the substrates into different molecules known as pro ...


References

{{DEFAULTSORT:Laidler, Keith J. 1916 births 2003 deaths Princeton University alumni Catholic University of America faculty Alumni of Trinity College, Oxford Canadian physical chemists English physical chemists Academic staff of the University of Ottawa Fellows of the Royal Society of Canada Scientists from Liverpool People educated at Liverpool College British emigrants to Canada