Synthesis and structure of 1,1′,1′′-[(2-bromoethoxy)methanetriyl]tribenzene and 1,1′,1′′-[(2-iodoethoxy)methanetriyl]tribenzene

The present study reports on the mol­ecular structures and syntheses of 1,1′,1′′-[(2-bromo­eth­oxy)methane­tri­yl]tri­benzene, C_21H_19BrO, and 1,1′,1′′-[(2-iodo­eth­oxy)methane­tri­yl]tri­benzene, C_21H_19IO. Both compounds crystallized from a saturated solution in THF by slow vapour diffusion of n-hexane in the monoclinic space group P2_1/c. While the two independent mol­ecules in the asymmetric unit of 1,1′,1′′-[(2-iodo­eth­oxy)methane­tri­yl]tri­benzene show no close contacts to other mol­ecules, in the structure of 1,1′,1′′-[(2-bromo­eth­oxy)methane­tri­yl]tri­benzene the mol­ecules inter­act with each other via C—H⋯Pi contacts.