Date Published: June 01, 2011
Publisher: International Union of Crystallography
Author(s): Augusto Rivera, Jicli José Rojas, Jaime Ríos-Motta, Michal Dušek, Karla Fejfarová.
The asymmetric unit of the title compound, C18H22Br2N2O2, contains one half-molecule that is related to the other half by a center of inversion located at the mid-point of the central C—C bond. The hydroxy (phenolic) groups are linked to the N atoms by O—H⋯N hydrogen bonds, which generate S(6) rings.
For the synthesis, see: Rivera et al. (2010 ▶). For the uses of tetrahydrosalens in coordination chemistry, see: Atwood (1997 ▶). For a related structure, see: Nazarenko et al. (2000 ▶). For reference bond lenghts, see: Allen et al. (1987 ▶).