Richard Martin WillstätterFRS(For)HFRSE(German pronunciation:[ˈʁɪçaʁtˈvɪlˌʃtɛtɐ]ⓘ, 13 August 1872 – 3 August 1942) was a Germanorganic chemistwhose study of the structure of plant pigments,chlorophyllincluded, won him the 1915Nobel Prize for Chemistry. Fields: Physical chemistry