You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named iridium;2-phenyl-5-(trideuteriomethyl)pyridine;2-(3-pyridin-2-ylbenzene-6-id-1-yl)-5-(trideuteriomethyl)pyridine by IUPAC nomenclature, provide its molecular formula.
user
C29H23IrN3-2
assistant