The present invention relates to the following formula (I) This relates to the indenonaphthopyrane compound represented by
JPEG2026517214000025.jpg60160. With respect to formula (I), m, n and R 4 ~R 7 This is as described herein. Furthermore, with respect to formula (I), R 1 is an
aryl or heteroaryl substituted with at least one perfluoroalkyl group, and R 2 is an alkoxy, and R 3 R is an alkoxy, amino, or substituted or unsubstituted
nitrogen-containing heterocycle, 3 If R is not an alkoxy, 3 This is conditional on the
nitrogen atom being covalently bonded at position 7. The present invention also relates to photochromic compositions and photochromic articles comprising an indenonaphthopyrane compound represented by formula (I).