You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
carbanide;(2,6-dipropylphenyl)-[[6-(2H-naphthalen-2-id-1-yl)pyridin-2-yl]-(2-propan-2-ylphenyl)methyl]azanide;hafnium(4+) is the IUPAC name of a molecule. Please give its molecular formula.
user
C39H44HfN2
assistant