title: Crystal structure of bromo(2,2':6',2"-terpyridine)(2-(phenylazo)-pyridine)ruthenium(II) tetrafluoroborate.
abstract: The title compound, C26H20N6BrRu(BF4), crystallizes in the centrosymmetric space group P2(1)/n and consists of discrete complex units. The Ru(II) ion is octahedrally coordinated to one 2,2':6',2"-terpyridine (tpy), one 2-(phenylazo)pyridine (azpy) and a Br atom in trans-axial position at a distance of 2.547(5)A. The shorter Ru-N (azo) distance (1.960(3)A) than the Ru-N(py) distance (2.061(3)A) signifies a strong pi-backbonding, which leads to a longer, N=N (azo) bond (1.304(4)A).
authors.affiliation: Department of Chemistry, Faculty of Science, Prince of Songkla University, Songkla 90112, Thailand.
authors.forename: Kanidtha
authors.initials: K
authors.lastname: Hansongnern
authors.forename: Uraiwan
authors.initials: U
authors.lastname: Saeteaw
authors.forename: Golam
authors.initials: G
authors.lastname: Mostafa
authors.forename: Fen-Ling
authors.initials: FL
authors.lastname: Liao
authors.forename: Tian-Huey
authors.initials: TH
authors.lastname: Lu