catena-Poly[[(N,N-di-methyl-cyanamide-κN)lithium]-μ3-bromido].
The title complex, [LiBr(C3H6N2)] n , is the unexpected product of a reaction beteween (Dipp)N(Li)SiMe3 (Dipp = 2,6-diiso-propyl-phen-yl), Me2NCN and CuBr. The compound is a one-dimensional polymer with a step structure derived from the association of inversion dimers, formed by bromido ligands bridging two Li(+) cations, each of which carries a di-methyl-cyanamide ligand. The planar (LiBr)2 unit of the polymer core has a regular rhombic shape [Li-Br-Li 77.55 (16)° and Br-Li-Br 102.45 (16)°]. These (LiBr·NCNMe2)2 dimers represent the repeat unit of a polymer system propagated by additional Br-Li and Li-Br bonds generating an infinite step structure along the a-axis direction.
Institute of Applied Chemistry, Shanxi University, Taiyuan 030006, People's Republic of China.
Qianwen
Q
Xie
Institute of Applied Chemistry, Shanxi University, Taiyuan 030006, People's Republic of China.
Hongbo
H
Tong
Institute of Applied Chemistry, Shanxi University, Taiyuan 030006, People's Republic of China.
Meisu
M
Zhou