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• Q7345926 description "Canadian chemist".
• Q7345926 description "Canadian chemist".
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• Q7345926 abstract "Dr. Robert J. LeRoy (born September 30, 1943 in Ottawa) is one of Canada’s leading chemists and is currently a University Professor at the University of Waterloo.LeRoy received the BSc and MSc degrees from University of Toronto in 1965 and 1967, respectively, and a PhD degree from University of Wisconsin–Madison in 1971.LeRoy is renowned for two major achievements in the field of chemistry: the development of the near-dissociation theory, alongside R. B. Bernstein, and the derivation of the LeRoy Radius. LeRoy is also the author of many computer programs that aid in collecting information from experiments. Many of his works are used by schools and labs throughout the world and have contributed to the progress of science.He is a graduate from the University of Toronto. During his stay there, he began working with theoretical and computational chemical physics, which is what he would deal with for the rest of his career.In his research, Dr LeRoy involves using quantum mechanical theory to understand and explain how properties of molecular systems are the results of forces of interaction by quantitatively determining those forces from measurements of various properties.In almost any area of science today, the experimental work runs parallel to the theoreticalwork and there is constant interplay between the two areas. In Canada there are severaltheorists whose research teams examine the forces between atoms and molecules toincrease our understanding of physical and chemical properties. One such individualis Dr. Robert LeRoy, currently working in theoretical chemical physics atthe University of Waterloo.Dr. LeRoy’s interest is intermolecular forces. He uses quantum mechanics and computermodels to define and analyze the basic forces between atoms and molecules. Earlyin his career, Dr. LeRoy developed a technique for mathematically defining a radius ofa small molecule, now known as the LeRoy radius. This established a boundary.Withinthe boundary, intramolecular bonding is important, and beyond the boundary, intermolecularforces predominate. In his work, the study of atomic and molecular spectra(called spectroscopy) plays a crucial role. Measurements from spectroscopy help theoreticiansdevelop better models and theories for explaining molecular structure.Computerprograms that Dr. LeRoy has developed for the purpose of converting experimental evidenceto information on forces, shape, and structure are free, and are now routinelyused around the world.It is important not to assume that forces and structures are well established. Ourknowledge of bonding and structure becomes more and more scanty and unreliable forlarger structures. A huge amount of research remains to be done if we are ever to beable to describe bonding and structure very accurately for even microscopic amounts ofcomplex substances. Dr. LeRoy states “... except for the simplest systems, our knowledgeof (interactions between molecules) is fairly primitive... .” A classic example is our understandingof the structure and activity of proteins—the stuff of life.We know the compositionof many proteins quite precisely and the structure can be experimentallydetermined, but the structure of these large molecules depends on how bonding foldsand shapes the chains and branches. How a protein behaves and what it does dependsspecifically on its precise shape and structure, and that is something scientists often stateis “not well understood.”His work on the Morse/Long-range potential was referred to as a "landmark in diatomic spectral analysis" in. In the landmark work, the C3 value for atomic lithium was determined to a higher-precision than any atom's previously measured oscillator strength, by an order of magnitude. This lithium oscillator strength is related to the radiative lifetime of atomic lithium and is used as a benchmark for atomic clocks and measurements of fundamental constants.".
• Q7345926 birthDate "1943-09-30".
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• Q7345926 birthYear "1943".
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• Q7345926 wikiPageExternalLink leroy.uwaterloo.ca.
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• Q7345926 birthDate "1943-09-30".
• Q7345926 birthPlace Q1904.
• Q7345926 birthPlace Q1930.
• Q7345926 dateOfBirth "1943-09-30".
• Q7345926 knownFor Q6506470.
• Q7345926 name "Leroy, Robert J.".
• Q7345926 name "Robert J. LeRoy".
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• Q7345926 shortDescription "Canadian chemist".
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• Q7345926 comment "Dr. Robert J. LeRoy (born September 30, 1943 in Ottawa) is one of Canada’s leading chemists and is currently a University Professor at the University of Waterloo.LeRoy received the BSc and MSc degrees from University of Toronto in 1965 and 1967, respectively, and a PhD degree from University of Wisconsin–Madison in 1971.LeRoy is renowned for two major achievements in the field of chemistry: the development of the near-dissociation theory, alongside R. B.".
• Q7345926 label "Robert J. LeRoy".
• Q7345926 givenName "Robert J.".
• Q7345926 homepage leroy.uwaterloo.ca.
• Q7345926 name "Leroy, Robert J.".
• Q7345926 name "Robert J. LeRoy".
• Q7345926 name "Robert J. Leroy".
• Q7345926 surname "Leroy".