Leon M. Dorfman, retired Ohio State chemistry professor, died earlier this week in California.Dorfman was a professor of chemistry at OSU from 1964 to 1985 when he took early retirement. Dorfman also served as chairman of the chemistry department for eight years.”He was a good teacher. He liked it here at Ohio State,” said his son David. “He had offers to leave, but none as good as here.”David Dorfman, 39, is a graduate student at OSU and will be receiving his master’s degree in architecture next week. It will be a bittersweet ceremony for David because it will also be his father’s birthday.Leon Dorfman and his wife Lorraine also had two daughters, Gail, 49 and Amy, 44. The couple moved to La Jolla, Calif., after Dorfman’s retirement.”He really wanted things done right. He was effective at getting things back on time,” said Russel Pitzer, professor of chemistry. “He was a good leader.”Dorfman was featured in Time magazine for traveling to the former Soviet Union to attend scientific conferences in 1959. This was during the height of the Cold War.”His studies are landmarks. People refer to them as fundamental studies in that area,” said Pitzer.Dorfman was also a Guggenheim Fellow and worked at the Royal Institute of Great Britain from 1971 to 1972.