Chadwick Tolman

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Chadwick Tolman 1976

Chadwick A. Tolman (* 1938 in Salt Lake City ) is an American chemist .

Life

His Bachelor of Science degree in chemistry from the Massachusetts Institute of Technology . He later received his doctorate in microwave spectroscopy from the University of California, Berkeley under the direction of William Dulaney Gwinn .

In 1965 he started working at DuPont Central Research . In his early work he dealt with late transition metal compounds with phosphine ligands . During this time he developed the Tolman cone angle named after him and the Tolman Electronic Parameter . In 1972, he suggested that also named after him, 16-and 18-electron rule before in which it Irving Langmuir 18-electron rule extended to many examples of stable, square planar d 8 - complexes include. In later work he dealt with the activation of C – H bonds by transition metal complexes and the free radical oxidation of cyclohexane to produce adipic acid , an intermediate product in nylon production .

In addition, Chadwick Tolman helped found the Delaware Science Alliance and is taking a year off from DuPont to make the association self-sustaining as head of the coordinating committee. The primary goal of the Science Alliances was to connect scientists interested in teaching with teachers looking for support in the classroom. The programs created included a Science Olympiad at elementary schools , workshops for volunteer and elementary school teachers, summer grants in the local industry for secondary teachers, and classroom visits and demonstrations by industrial scientists.

After leaving DuPont in 1996, Tolman taught at the Delaware Technical & Community College and the University of Delaware for a year before joining the National Science Foundation as program director for the chemistry department. This was followed by two more years at the National Academy of Science in the Department of Earth and Life Sciences. There he dealt with air pollution and air quality management.

Tolman has followed and communicated climate change for over 20 years, for example in his monthly blog Climate Change News . He also contributed to the Unitarian Universalist Association's Statement of Conscience on the Threat of Global Warming / Climate Change , which was adopted at the 2006 General Assembly.

Tolman serves on a variety of advisory boards. He chairs the Energy Committee of the Delaware Local Association of the Sierra Club and is a member of the Advocacy Committee of the Delaware Nature Society . He is also on the Energy Committee of the Delaware League of Women Voters and on the Climate Change Task Force of the US League of Women Voters, where he helped create a toolkit for climate change actions. He is also on the Advisory Committee on Greenhouse Gas Reduction and the Advisory Committee on Sea Level Rise in the State of Delaware .

Tolman was presented with the Delaware Audubon Conservation Award at the annual Delaware Audubon Society meeting on October 9, 2009.

Chadwick Tolman continues to be the grandfather of six grandchildren.

Web links

Commons : Chadwick A. Tolman  - Collection of Images, Videos, and Audio Files

Individual evidence

  1. ↑ Thesis: The Microwave Spectrum and Vibration-Rotation Interaction in 1,1-Difluorocyclopentane.
  2. ↑ Dr. Chad Tolman . CA Tolman. Archived from the original on August 13, 2011. Retrieved March 21, 2011.
  3. ↑ CA Tolman: Steric effects of phosphorus ligands in organometallic chemistry and homogeneous catalysis . In: Chem Rev.. . 77, No. 3, 1977, pp. 313-348. doi : 10.1021 / cr60307a002 .
  4. ^ CA Tolman: The 16 and 18 electron rule in organometallic chemistry and homogeneous catalysis . In: Chem. Soc. Rev. . 1, No. 3, 1972, p. 337. doi : 10.1039 / CS9720100337 .
  5. ↑ SD Ittel, CA Tolman, AD English, and JP Jesson, "The Chemistry of 2-Naphthyl bis [bis (dimethylphosphino) ethane] Hydride Complexes of Fe, Ru, and Os. 2. Cleavage of sp and sp3 CH, CO, and CX Bonds. Coupling of Carbon Dioxide and Acetonitrile, "J. Am. Chem. Soc., 100, 7577 (1978).
  6. ↑ CA Tolman, SD Ittel, AD English, and JP Jesson, "Chemistry of 2-Naphthylbis [bis (dimethylphosphino) ethane] Hydride Complexes of Iron, Ruthenium, and Osmium. 3. Cleavage of sp2 CH Bonds," J. At the. Chem. Soc., 101, 1742 (1979).
  7. ↑ Tolman, CA; Druliner, JD; Nappa, MJ; Herron, N .; Alkane Oxidation Studies in Du Pont's Central Research Department; in Act. Funct. Alkanes (1989), 303-60, edited by Craig L. Hill.
  8. ↑ Tolman, CA; Druliner, JD; Krusic, PJ; Nappa, MJ; Seidel, toilet; Williams, ID; Ittel, SD Catalytic conversion of cyclohexylhydroperoxide to cyclohexanone and cyclohexanol, Journal of Molecular Catalysis (1988), 48 (1), 129-48.
  9. ↑ John W. Collette, Sharon K. Hake, and Robert D. Lipscomb; The Du Pont Honors Workshop: A Successful Industry-School Partnership, Chapter 6, pp. 55-65 in Partnerships in Chemical Research and Education; ACS Symposium Series, Vol. 478, ISBN 978-0-8412-2173-4 , November 18, 1992.
  10. ^ Committee on Review and Evaluation of the Army Chemical Stockpile Disposal Program, National Research Council: Tooele Chemical Agent Disposal Facility: Update on National Research Council Recommendations . National Academies Press, November 24, 1999, ISBN 978-0-309-06882-6 .
  11. ↑ CLIMATE CHANGE NEWS . Retrieved February 19, 2016.
  12. ^ Threat of Global Warming / Climate Change . In: UUA.org . Retrieved February 19, 2016.
  13. ↑ ( http://participate.lwv.org/c/9217/t/6398/p/salsa/web/common/public/content?content_item_KEY=3766 ), posted on the web in June 2010.
  14. ^ Delaware Audubon - Conservation Award 2009 . Retrieved February 19, 2016.
  15. ↑ Blogger: User Profile: Chad Tolman. Retrieved October 20, 2019 .
personal data
SURNAME Tolman, Chadwick
ALTERNATIVE NAMES Tolman, Chadwick A.
BRIEF DESCRIPTION American chemist
DATE OF BIRTH 1938
PLACE OF BIRTH Salt Lake City