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 1,1,1,2,4,7,8,8-octamethyl-10-propan-2-yl-1lambda5,2,4,7-tetraphospha-8-phosphoniacyclodec-5-yne ?
user
C16H36P5+
assistant