title: Dibromo[(-)-sparteine-kappa2N,N']zinc(II).
abstract: In the title compound, dibromo[(6R,7S,8S,14S)-1,3,4,7,7a,8,9,10,11,13,14,14a-dodecahydro-7,14-methano-2H,6H-dipyrido[1,2-a:1',2'-e][1,5]diazocine-kappa(2)N,N']zinc(II), [ZnBr(2)(C(15)H(26)N(2))], the chiral nitrogen-chelating alkaloid (-)-L-sparteine acts as a bidentate ligand, with two bromide ligands occupying the remaining coordination sites, producing a slightly distorted tetrahedral structure. The dihedral angle between the N-Zn-N and Br-Zn-Br planes is 82.4 (1) degrees. The distortion of the tetrahedral coordination is demonstrated by the fact that the midpoint of the N...N line does not lie in the Br-Zn-Br plane, but is tilted towards one of the N atoms by 0.164 A. Similarly, the midpoint of the Br...Br line is tilted towards one of the Br atoms by 0.117 A.
authors.affiliation: Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Pusan 609-735, South Korea. yomlee@pusan.ac.kr
authors.forename: Yong-Min
authors.initials: YM
authors.lastname: Lee
authors.forename: Sung Kwon
authors.initials: SK
authors.lastname: Kang
authors.forename: Young-Inn
authors.initials: YI
authors.lastname: Kim
authors.forename: Sung-Nak
authors.initials: SN
authors.lastname: Choi