Mark S. Wrighton

In February 2022, Wrighton caused controversy after removing posters from campus that accused the Chinese government of human rights abuses and criticized the country's hosting of the 2022 Winter Olympics. Wrighton claimed he was "personally offended" by the posters and pledged to find out who was responsible for them. The decision was criticized by the Foundation for Individual Rights in Education, which called the decision "a wholly inappropriate response to a university purportedly committed to free expression".

On September 10, 2021, The George Washington University's Board of Trustees Chair announced that Wrighton would serve as the university's Interim President for a maximum of 18 months. Wrighton will start his position at The George Washington University on January 1, 2022. He will concurrently be on sabbatical from Washington University in St. Louis while at GWU. Wrighton formally took office on 1 January 2021.

On October 6, 2017, Wrighton announced his intent to leave the chancellorship. He concluded his tenure as chancellor on May 31, 2019, and he is now the James and Mary Wertsch Distinguished University Professor and Chancellor Emeritus at Washington University in St. Louis.

Wrighton was criticized in May 2008 when the university's Board of Trustees voted to honor alumna Phyllis Schlafly with an honorary doctorate, leading to outrage from opponents to her stance on gender issues and from many other members of the university community opposed to her disbelief in evolution. Wrighton distanced himself from the board's decision with a letter to the community disavowing Schlafly's views on science.

While at Washington University in St. Louis, Wrighton was one of the signees of a letter from the Association of American Universities, urging all representatives of the U.S. Government to vote in favor of H.R. 810, the Stem Cell Research Enhancement Act of 2005. With leaders at three other Missouri universities, Wrighton wrote in support of somatic cell nuclear transfer (SCNT) research for medical treatment, urging Missouri legislators to distinguish it from the use of stem cells for human reproductive cloning.

As chancellor, he led two major capital campaigns that resulted in contributions totaling nearly $5 billion, including approximately $1 billion for student financial aid, as well as the creation of more than 300 endowed professorships. He was elected chairman of the Association of American Universities (2004-2005) He is also a past chair of the Business-Higher Education Forum (2004-2006) and the Consortium on Financing Higher Education (2000-2001).

Wrighton served as a presidential appointee to the National Science Board (2000-2006), which acts as science policy advisor to the President and Congress and the National Science Foundation. He served as vice chair of the National Research Council's Committee on America's Energy Future, which issued its report in 2009.

In 1995, he left MIT to become chancellor of Washington University in St. Louis. The new position required him to give up an active research career. He was among the highest paid university heads in the United States, making $738,000 in 2007. In early 2007, Wrighton was mentioned as a candidate for Harvard University's presidency.

He has written more than 300 journal articles and holds 16 patents. He is co-author of Organometallic Photochemistry (1979, with Gregory L. Geoffroy), and editor of books and conference proceedings. During his time at MIT, Wrighton supervised the doctoral research of 70 students. In 1987, Wrighton became the head of MIT's chemistry department. He became MIT's provost in 1990.

Wrighton joined the faculty of the chemistry department at the Massachusetts Institute of Technology in the summer of 1972 as an assistant professor. In 1976, he was promoted to associate professor and was made a full professor the following year, 1977. Wrighton held the Frederick G. Keyes Chair in Chemistry from 1981 to 1989, when he was given the newly endowed Ciba-Geigy Chair in Chemistry. In 1983, he received a MacArthur Foundation "genius grant."

Wrighton has carried out work in the areas of inorganic photochemistry, photocatalysis and the use of solar energy in photovoltaics. In the early 1970s he discovered photoluminescence in a new class of rhenium (I) tricarbonyl diimine complexes. In the 1980s, he and his co-workers developed molecule-based transistors having conducting polymers as the device active materials. Wrighton was one of the first researchers to introduce the idea of electrochemical gating as a way of controlling charge transport in molecular electronics. One of his later areas of research involved attempting to chemically mimic photosynthesis.

Initially, Wrighton intended to study mathematics and government at Florida State University. Instead, inspired by his freshman chemistry professor, Edward Mellon, he switched his major to chemistry. Jack Saltiel became his advisor and mentor, and he continued undergraduate research in the area of organic photochemistry. Wrighton received his bachelor's degree with honors in chemistry at Florida State University in 1969, winning the Monsanto Chemistry Award for outstanding research. He received his PhD in 1972 at the age of 22 from the California Institute of Technology, working under Harry B. Gray and George S. Hammond. His doctoral dissertation subject was Photoprocesses in Metal-Containing Molecules. At Caltech, he became the first recipient of the Herbert Newby McCoy Award.

Mark Stephen Wrighton (born June 11, 1949) is an American academic and chemist, and the current President of The George Washington University. In September 2021, Wrighton was named the Interim President of The George Washington University for an 18-month term and succeeded Thomas LeBlanc in January 2022. During his time at GWU, he will concurrently be on sabbatical from Washington University in St. Louis where he is the James and Mary Wertsch Distinguished University Professor and Chancellor Emeritus. Wrighton served as the 14th Chancellor of Washington University in St. Louis from 1995 to 2019.