title: Photochromism of arylchromenes: remarkable modification of absorption properties and lifetimes of o-quinonoid intermediates.
abstract: [reaction: see text] A significant pi-conjugation in 6- and 7-arylchromenes manifests dramatically in the absorption properties of their photogenerated o-quinonoid intermediates. This in conjunction with facile synthesis via Suzuki coupling may render a myriad of photochromic arylchromenes with wide-ranging spectrokinetic properties readily accessible.
authors.affiliation: Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India. moorthy@iitk.ac.in
authors.forename: Jarugu Narasimha
authors.initials: JN
authors.lastname: Moorthy
authors.forename: Parthasarathy
authors.initials: P
authors.lastname: Venkatakrishnan
authors.forename: Subhas
authors.initials: S
authors.lastname: Samanta
authors.forename: D Krishna
authors.initials: DK
authors.lastname: Kumar
mesh_terms: D001578:Benzopyrans / Q000737:chemistry*; D003116:Color; D018360:Crystallography, X-Ray; D008958:Models, Molecular; D015394:Molecular Structure; D010777:Photochemistry; D011809:Quinones / Q000737:chemistry; D013057:Spectrum Analysis
chemical_list: D001578:Benzopyrans; D011809:Quinones