"The Principles of Conformational Analysis." Reimpression de Les Prix Nobel en 1969. SIGNED BY DEREK BARTON.

pp. 119-131. Original wrappers. Near Fine. First Edition. SIGNED BY DEREK BARTON on p. 119. Offprint of Derek Barton's Nobel Lecture, December 11, 1969. The Nobel Prize in Chemistry 1969 was awarded jointly to Derek H. R. Barton and Odd Hassel "for their contributions to the development of the concept of conformation and its application in chemistry." "In nature organisms are composed of an enormously varied number of chemical compounds, with the element carbon as a common component. The binding energy between atoms in carbon compounds determines their structure, but the structures are not completely rigid. They are flexible to a certain degree. Consequently, molecules can assume different conformations, which has ramifications for their way of reacting with other substances. In the 1950s Derek Barton charted conformations for a number of substances with biological importance, such as bile acids, sex hormones, cortisone and cholesterol" (Nobel Prize website).