Synthesis and Crystal Structure of Bis(2,2'-Bipyridine-N,N')Dichloromanganese(II) Complex with Free 2,2'-Bipyridine
Titel:
Synthesis and Crystal Structure of Bis(2,2'-Bipyridine-N,N')Dichloromanganese(II) Complex with Free 2,2'-Bipyridine
Auteur:
Li, Zhenyu Xu, Duanjun Nie, Jingjing Wu, Zhiyong Wu, Jingyun Chiang, Michael
Verschenen in:
Journal of coordination chemistry
Paginering:
Jaargang 55 (2002) nr. 10 pagina's 1155-1160
Jaar:
2002
Inhoud:
The title complex [Mn(bipy)2Cl2]·0.5bipy·2.5H2O, where bipy = 2,2'-bipyridine, has been prepared and its crystal structure has been determined by X-ray diffraction methods. The complex crystallizes in the triclinic space group P-1, with a = 8.814(2), b = 11.335(2), c = 13.347(3) Å, α = 76.85(2), β = 89.55(2), γ = 86.52(2)°. Two chloride and two bipy ligands cis-coordinate to a Mn(II) atom with a distorted octahedral geometry. The crystal consists of Mn(II) complex, free bipy and crystalline water. The complex crystalline water link to each other by H-bonding to form supra-molecular chains, and free bipy molecules locate between parallel chains with a van der Waals contact distance of 3.58(1) Å. A π-π interaction is also observed between adjacent bipy rings. The chelating bipy and free bipy showed different IR absorptions.