Abstract A novel diphosphino-functionalized MCM-41 anchored rhodium complex [MCM-41- 2P-RhCl (PPh 3)] was conveniently synthesized by the reaction of diphosphino- functionalized MCM-41 (MCM-41-2P) with RhCl (PPh 3) 3. It was found that this rhodium complex is an efficient catalyst for the hydrothiolation of terminal alkynes with thiols and can be recovered and recycled by a simple filtration of the reaction solution and used for at ...