George Claude Pimentel (May 2, 1922 – June 18, 1989) was a preeminent chemist and researcher, the inventor of the chemical laser, who was also dedicated to science education and public service. He developed the technique of matrix isolation in low-temperature chemistry. He also developed time-resolved infrared spectroscopy to study radicals and other transient species. In the late 1960s, Pimentel led the University of California team that designed the infrared spectrometer for the Mars Mariner 6 and 7 missions that analyzed the surface and atmosphere of Mars.
He was a passionate and popular teacher of first-year chemistry for his entire career. In science education, he was best known for the CHEM STUDY project, a national effort to improve high-school chemistry teaching. He participated in the production of films and other supplementary materials and in the training of teachers nationwide. Later, in 1985, he organized and edited the National Academy of Sciences' "Pimentel Report," formally known as Opportunities in Chemistry, which highlighted the most important challenges in chemistry at that time. It was a resource for general public including lawmakers. A revised version, Opportunities in Chemistry Today and Tomorrow, was used worldwide for high school and college students.
