You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1,3-bis(2,4,6-trimethylphenyl)-2H-imidazol-2-ide;3-chloropyridine;dichloropalladium is the IUPAC name of a molecule. Please give its molecular formula.
user
C26H29Cl3N3Pd-
assistant