Bis(1,5-diazacyclooctane-N,N')nickel(II) dibromide.
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.
Du
M
M
Department of Chemistry, Nankai University, Tianjin 300071, People's Republic of China.
Bu
X H
XH
Leng
X B
XB
Guo
Y M
YM
Zhang
R H
RH