You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Could you please return a molecule that adheres to this description? The molecule is phosphorescent.
user
c1ccc(-c2ccc(-n3c4ccccc4c4cc(-c5ccc6c(c5)c5cc(-c7ccc8c(c7)c7cc(-c9ccc%10c(c9)c9ccccc9n%10-c9ccccc9)ccc7n8-c7ccc8c(c7)c7ccccc7n8-c7cccc(-c8cc(-c9cccc(-c%10cccc(-c%11ccc%12c(c%11)c%11cccc%13c%14ccccc%14n%12c%13%11)c%10)c9)ccc8-c8ccccc8)c7)ccc5n6-c5ccc(-c6ccccc6)cc5)ccc43)cc2)cc1
assistant