AB, University of California at Los Angeles, 1943; Doctor of Philosophy in Chemistry, University of California, Berkeley, 1949; Doctor of Philosophy (honorary), University Arizona, 1986; Doctor of Philosophy (honorary), Colorado School Mines, 1987; Doctor of Philosophy (honorary), University Rochester, 1988.
He also developed the technique of matrix isolation in low-temperature chemistry. In theoretical chemistry, he proposed the three-center four-electron bond which is now accepted as the best simple model of hypervalent molecules. An alumnus of University of California, Los Angeles (BS 1943) and University of California, Berkeley (PhD 1949), Pimentel began teaching at Berkeley in 1949, where he remained until his death in 1989.
The ACS Award in Chemical Education was renamed the George C.
Served with United States Naval Reserve, 1944-1946. Fellow American Association for the Advancement of Science, American Academy Arts and Science, Royal Society Chemistry (honorary). Member National Academy Sciences, Royal Institution (honorary), American Philosophical Society, American Chem.Soc.
(president 1986-1989, Precision Science award 1959, Priestley medal 1989, Chemical Education award 1990), American Physical Society (Earle K. Plyer prize, Lippincott medal 1980), Optical Society American, Phi Beta Kappa, Sigma Xi, Phi Eta Sigma, Phi Lambda Epsilon, Alpha Chi Sigma.
Son of Emile J. and Lorraine Alice (Reid) P. M.; children: Anne Christine, Tess Loren, Janice Amy.