Molecular structure of tris[(6-bromopyridin-2-yl)methyl]amine

Coordination compounds of polydentate nitrogen ligands with metals are used extensively in research areas such as catalysis, and as models of complex active sites of enzymes in bioinorganic chemistry. Tris(2-pyridylmethyl)amine (TPA) is a tripodal tetradentate ligand that is known to form coordination compounds with metals, including copper, iron and zinc. The related compound, tris[(6-bromopyridin-2-yl)methyl]amine (TPABr 3 ), C 18 H 15 Br 3 N 4 , which possesses a bromine atom on the 6-position of each of the three pyridyl moieties, is also known but has not been heavily investigated. The molecular structure of TPABr 3 as determined by X-ray diffraction is reported here. The TPABr 3 molecule belongs to the triclinic, P 1̄ space group and displays interesting intermolecular Br...Br interactions that provide a stabilizing influence within the molecule.