You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 1-(2,6-diphenylphenyl)-9-fluoro-5,5-dimethyl-6H-imidazo[1,2-d][1,4]benzothiazepin-4-ium ?
user
C31H26FN2S+
assistant