title: Michael Kasha: from photochemistry and flowers to spectroscopy and music.
abstract: A brilliant scientist and an outstanding personality who was one of the founders of modern photochemistry-Michael Kasha-is the subject of this Essay. Kasha's rule and the Kasha effect both bear his name, and he also discovered the chemical production of singlet molecular oxygen, and was a pioneer of excited-state proton transfer systems. Kasha combined his passion for chemistry and physics with that for music, photography, and botany.
authors.affiliation: Palladin Institute of Biochemistry, Leontovicha st. 9, Kyiv 01039 (Ukraine). alexdem@ukr.net.
authors.forename: Alexander P
authors.initials: AP
authors.lastname: Demchenko
authors.forename: Józef
authors.initials: J
authors.lastname: Heldt
authors.forename: Jacek
authors.initials: J
authors.lastname: Waluk
authors.forename: Pi-Tai
authors.initials: PT
authors.lastname: Chou
authors.forename: Pradeep K
authors.initials: PK
authors.lastname: Sengupta
authors.forename: Larissa
authors.initials: L
authors.lastname: Brizhik
authors.forename: Juan Carlos
authors.initials: JC
authors.lastname: del Valle
keywords: Kasha, Michael; history of science; photochemistry; singlet oxygen