George Parshall
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George W. Parshall (September 19, 1929 – July 28, 2019) was an American organometallic chemist who made notable contributions to
homogeneous catalysis In chemistry, homogeneous catalysis is catalysis by a soluble catalyst in a solution. Homogeneous catalysis refers to reactions where the catalyst is in the same phase as the reactants, principally in solution. In contrast, heterogeneous catalysi ...
. He was a senior scientist at E. I. du Pont de Nemours and Company for many years.


Personal and educational background

Born in
Hackensack, Minnesota Hackensack is a city in Cass County, Minnesota, United States. The population was 313 at the 2010 census. It is part of the Brainerd Micropolitan Statistical Area. History A post office called Hackensack has been in operation since 1888. The ...
, Parshall received a
Bachelor of Science A Bachelor of Science (BS, BSc, SB, or ScB; from the Latin ') is a bachelor's degree awarded for programs that generally last three to five years. The first university to admit a student to the degree of Bachelor of Science was the University o ...
degree with highest distinction from the
University of Minnesota The University of Minnesota, formally the University of Minnesota, Twin Cities, (UMN Twin Cities, the U of M, or Minnesota) is a public land-grant research university in the Twin Cities of Minneapolis and Saint Paul, Minnesota, United States. ...
in 1951. He received his
Ph.D. A Doctor of Philosophy (PhD, Ph.D., or DPhil; Latin: or ') is the most common degree at the highest academic level awarded following a course of study. PhDs are awarded for programs across the whole breadth of academic fields. Because it is ...
in
Organic Chemistry Organic chemistry is a subdiscipline within chemistry involving the scientific study of the structure, properties, and reactions of organic compounds and organic materials, i.e., matter in its various forms that contain carbon atoms.Clayden, ...
from the
University of Illinois The University of Illinois Urbana-Champaign (U of I, Illinois, University of Illinois, or UIUC) is a public land-grant research university in Illinois in the twin cities of Champaign and Urbana. It is the flagship institution of the Univer ...
in 1954 under the direction of Reynold C. Fuson. In 1954, he joined
Central Research In 1957, the research organization of the Chemicals Department of E. I. du Pont de Nemours and Company was renamed Central Research Department, beginning the history of the premier scientific organization within DuPont and one of the foremost indus ...
Department at du Pont Experimental Station, where he rose to Director of Chemical Sciences. He took two industrial sabbaticals, one at
Imperial College London Imperial College London (legally Imperial College of Science, Technology and Medicine) is a public research university in London, United Kingdom. Its history began with Prince Albert, consort of Queen Victoria, who developed his vision for a cu ...
in 1960-61 and another at
University of Oxford , mottoeng = The Lord is my light , established = , endowment = £6.1 billion (including colleges) (2019) , budget = £2.145 billion (2019–20) , chancellor ...
in 1986. He was a visiting Ipatieff Lecturer at
Northwestern University Northwestern University is a private research university in Evanston, Illinois. Founded in 1851, Northwestern is the oldest chartered university in Illinois and is ranked among the most prestigious academic institutions in the world. Charte ...
of the fall of 1994. Parshall is a member of the
American Academy of Arts and Sciences The American Academy of Arts and Sciences (abbreviation: AAA&S) is one of the oldest learned societies in the United States. It was founded in 1780 during the American Revolution by John Adams, John Hancock, James Bowdoin, Andrew Oliver, a ...
, the
New York Academy of Sciences The New York Academy of Sciences (originally the Lyceum of Natural History) was founded in January 1817 as the Lyceum of Natural History. It is the fourth oldest scientific society in the United States. An independent, nonprofit organization wi ...
, the National Academy of Sciences,
Phi Beta Kappa The Phi Beta Kappa Society () is the oldest academic honor society in the United States, and the most prestigious, due in part to its long history and academic selectivity. Phi Beta Kappa aims to promote and advocate excellence in the liberal ...
,
Phi Lambda Upsilon Phi Lambda Upsilon National Honorary Chemical Society () was founded in 1899 at the Noyes Laboratory of the University of Illinois. Phi Lambda Upsilon was the first honor society dedicated to scholarship in a single discipline, chemistry. Object ...
and
Sigma Xi Sigma Xi, The Scientific Research Honor Society () is a highly prestigious, non-profit honor society for scientists and engineers. Sigma Xi was founded at Cornell University by a junior faculty member and a small group of graduate students in 1886 ...
. Parshall is a member of the Guild of Scholars of The Episcopal Church. He married Naomi B. Simpson on October 9, 1954.


Professional career and technical contributions

Parshall was a senior manager at du Pont during an era of rapid development and commercialization of organometallic chemistry and
homogeneous catalysis In chemistry, homogeneous catalysis is catalysis by a soluble catalyst in a solution. Homogeneous catalysis refers to reactions where the catalyst is in the same phase as the reactants, principally in solution. In contrast, heterogeneous catalysi ...
. He directed the work of 50 to 100 DuPont scientists, including that of
Fred Tebbe Frederick Nye Tebbe was a chemist known for his work on organometallic chemistry. Tebbe was born in Oakland, California on March 20, 1935. His father, Charles L. Tebbe, worked for the United States Forest Service so Fred’s early education took ...
and
Richard Schrock Richard Royce Schrock (born January 4, 1945) is an American chemist and Nobel laureate recognized for his contributions to the olefin metathesis reaction used in organic chemistry. Education Born in Berne, Indiana, Schrock went to Mission Bay ...
. The activation of carbon-hydrogen bonds was a recurring theme of his own research. He conducted research on the use of molten salts in catalysis and initiated work on organolanthanide chemistry. He conducted early studies related to nitrogen fixation. He was most closely associated with the DuPont processes for making critical polymer intermediates used in producing
nylon Nylon is a generic designation for a family of synthetic polymers composed of polyamides ( repeating units linked by amide links).The polyamides may be aliphatic or semi-aromatic. Nylon is a silk-like thermoplastic, generally made from pe ...
and polyester and
spandex Spandex, Lycra, or elastane is a synthetic fiber known for its exceptional elasticity. It is a polyether-polyurea copolymer that was invented in 1958 by chemist Joseph Shivers at DuPont's Benger Laboratory in Waynesboro, Virginia, US. The g ...
. Parshall coauthored a textbook on “Homogeneous Catalysis” with
Steven Ittel Steven Dale Ittel (born 1946 in Hamilton, Ohio) is an American chemist specializing in organometallic chemistry and homogeneous catalysis. Training Ittel attended Miami University in Oxford, Ohio, where he received a bachelor's degree in chemist ...
. Parshall also directed the development of alternatives to the
chlorofluorocarbons Chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs) are fully or partly halogenated hydrocarbons that contain carbon (C), hydrogen (H), chlorine (Cl), and fluorine (F), produced as volatile derivatives of methane, ethane, and propa ...
(CFCs) used in
refrigerators A refrigerator, colloquially fridge, is a commercial and home appliance consisting of a thermally insulated compartment and a heat pump (mechanical, electronic or chemical) that transfers heat from its inside to its external environment so th ...
and air conditioners. When Parshall retired from DuPont in 1992, he joined the effort to destroy
chemical weapon A chemical weapon (CW) is a specialized munition that uses chemicals formulated to inflict death or harm on humans. According to the Organisation for the Prohibition of Chemical Weapons (OPCW), this can be any chemical compound intended as a ...
stockpiles in the United States and across the world. As a member of the
National Research Council National Research Council may refer to: * National Research Council (Canada), sponsoring research and development * National Research Council (Italy), scientific and technological research, Rome * National Research Council (United States), part of ...
’s “Stockpile Committee,” he has played a role in advising the U.S. Army in its ongoing effort to safely destroy chemical weapons.Impact of scientific developments on the Chemical Weapons Convention (IUPAC Technical Report), Parshall, George W.; Pearson, Graham S.; Inch, Thomas D.; Becker, Edwin D.; IUPAC Commission, Pure and Applied Chemistry (2002), 74(12), 2323-2352. The Chemical Weapons Convention called for the destruction of these chemicals, which generally fell into three types.


References


External links

*
George W. Parshall, Catalyst of Change
*
Robert H. Crabtree, "George W. Parshall", Biographical Memoirs of the National Academy of Sciences (2022)
{{DEFAULTSORT:Parshall, George 2019 deaths 1929 births University of Minnesota alumni Members of the United States National Academy of Sciences 21st-century American chemists People from Cass County, Minnesota Academics of Imperial College London DuPont people Activists from Delaware Scientists from Delaware 20th-century American scientists 20th-century American chemists