Robin Jon Hawes ClarkCNZMFRS (16 February 1935 – 6 December 2018) was a New Zealand-born chemist initially noted for research of transition metal and mixed-valence complexes, and later for the use of Raman spectroscopy in determining the chemical composition of pigments used in artworks.
Clark began teaching at University College London in 1962 as an assistant lecturer. He was appointed Sir William Ramsay Professor in 1989, and served until retirement in 2009. He served as the dean of science from 1988 to 1989 and later as head of the chemistry department from 1989 to 1999.
In 1992, Clark was asked to develop a non-destructive technique to analyze the chemical composition of a painting in such a way to be able to spot art forgeries. He had since developed the use of Raman spectroscopy as an important tool for use in the fields of artwork authentication, conservation, and preservation.[6][7]
Clark, Robin J.H.; Williams, Charles S. (1965). "The far-infrared spectra of metal-halide complexes of pyridine and related ligands". Inorganic Chemistry. 4 (3): 350–357. doi:10.1021/ic50025a020.
Bell, Ian M.; Clark, Robin J.H.; Gibbs, Peter J. (1997). "Raman spectroscopic library of natural and synthetic pigments (pre-~ 1850 AD)". Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 53 (12): 2159–2179. doi:10.1016/S1386-1425(97)00140-6. PMID9437873.
Burgio, Lucia; Clark, Robin J.H. (2001). "Library of FT-Raman spectra of pigments, minerals, pigment media and varnishes, and supplement to existing library of Raman spectra of pigments with visible excitation". Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 57 (7): 1491–1521. Bibcode:2001AcSpA..57.1491B. doi:10.1016/s1386-1425(00)00495-9. PMID11446703.
Clark, Robin J. H.; Dines, Trevor J. (1986). "Resonance Raman Spectroscopy, and Its Application to Inorganic Chemistry". Angewandte Chemie International Edition in English. 25 (2): 131–158. doi:10.1002/anie.198601311. ISSN0570-0833.