title: Bis(1,5-diazacyclooctane-N,N')nickel(II) dibromide.
abstract: The crystal structure of the title complex, [Ni(C(6)H(14)N(2))(2)]Br(2), consists of discrete [Ni(C(6)H(14)N(2))(2)](2+) cations and bromide counter-anions. The Ni(II) ion is at the center of symmetry and is four-coordinated by four nitrogen donors of the mesocyclic ligand 1,5-diazacyclooctane (DACO) [Ni-N 1.935 (2)-1.937 (2) A]. The coordination geometry of Ni(II) can be considered as square planar and both DACO ligands take the boat-chair conformation. The bromide anions are hydrogen bonded with the nitrogen donors of the ligands to form a macrocycle-like ring system.
authors.affiliation: Department of Chemistry, Nankai University, Tianjin 300071, People's Republic of China.
authors.forename: M
authors.initials: M
authors.lastname: Du
authors.forename: X H
authors.initials: XH
authors.lastname: Bu
authors.forename: X B
authors.initials: XB
authors.lastname: Leng
authors.forename: Y M
authors.initials: YM
authors.lastname: Guo
authors.forename: R H
authors.initials: RH
authors.lastname: Zhang