The molecule contains a central phosphorus atom that is singly bonded to three sulfur atoms. 

1. Two sulfurs are terminal, attached only to phosphorus.  
2. The third sulfur is bonded into a cyclooctane ring (a fully saturated eight-membered carbocycle).
3. The same carbon of the cyclooctane that connects to this sulfur is also bonded, via a methylene linker (-CH2-), to a phenyl ring.