Photochromism of arylchromenes: remarkable modification of absorption properties and lifetimes of o-quinonoid intermediates.
[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.
Moorthy
Jarugu Narasimha
JN
Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India. moorthy@iitk.ac.in
Venkatakrishnan
Parthasarathy
P
Samanta
Subhas
S
Kumar
D Krishna
DK
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
D001578:Benzopyrans; D011809:Quinones