title: Crystal structure of (R)-2'-benz-yloxy-[1,1'-binaphthalen]-2-yl tri-fluoro-methane-sulfonate.
abstract: In the title compound, C28H19F3O4S, a new 2'-benz-yloxy (R)-BINOL derivative containing a tri-fluoro-methane-sulfonate group in the 2-position, the planes of the two naphthyl ring systems (r.m.s. deviations = 0.012 and 0.019 Å) are at an angle of 73.36 (2)°, and the planes of the benzyl ring and the naphthyl ring system bound to the ether O atom are at an angle of 75.67 (4)°. In the crystal, mol-ecules are linked via C-H⋯F hydrogen bonds, forming chains propagating along [100]. The chains are linked via a weak C-F⋯π inter-action and weak π-π inter-actions [shortest inter-centroid distance = 3.9158 (12) Å], forming a three-dimensional structure. The absolute structure of the mol-ecule in the crystal was determined by resonant scattering [Flack parameter = 0.02 (6)].
authors.affiliation: Chemistry Department, University of Coimbra, P-3004-516 Coimbra, Portugal.
authors.forename: Rui M B
authors.initials: RM
authors.lastname: Carrilho
authors.affiliation: Chemistry Department, University of Coimbra, P-3004-516 Coimbra, Portugal.
authors.forename: Mariette M
authors.initials: MM
authors.lastname: Pereira
authors.affiliation: Chemistry Department, University of Coimbra, P-3004-516 Coimbra, Portugal.
authors.forename: Teresa M R
authors.initials: TM
authors.lastname: Maria
authors.affiliation: Chemistry Department, University of Coimbra, P-3004-516 Coimbra, Portugal.
authors.forename: M Ermelinda S
authors.initials: ME
authors.lastname: Eusébio
authors.affiliation: CEMDRX, Physics Department, University of Coimbra, P-3004-516 Coimbra, Portugal.
authors.forename: V H
authors.initials: VH
authors.lastname: Rodrigues
keywords: (R)-BINOL; binaphth­yl; chiral; crystal structure; sulfonate