PHOTOCHROMIC COMPOUNDS AND COMPOSITIONS

摘要

The present invention relates to compounds represented by the following Formula (I). Ring-A of the Formula (I) can be, for example an aryl group, and L1 is a chiral or achiral lengthening group. The compound represented by Formula (I) can be a photochromic compound. The present invention also relates to photochromic compositions and photochromic articles that include one or more photochromic compounds, such as represented by Formula (I).