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

Abstract

Both compounds crystallized from a saturated solution in THF by slow vapour diffusion of n-hexane in the monoclinic space group P2₁/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 by C—H⋯π contacts.

The present study reports on the mol­ecular structures and syntheses of 1,1′,1′′-[(2-bromo­eth­oxy)methane­tri­yl]tri­benzene, C₂₁H₁₉BrO, and 1,1′,1′′-[(2-iodo­eth­oxy)methane­tri­yl]tri­benzene, C₂₁H₁₉IO. Both compounds crystallized from a saturated solution in THF by slow vapour diffusion of n-hexane in the monoclinic space group P2₁/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⋯π contacts.