期刊
JOURNAL OF COORDINATION CHEMISTRY
卷 55, 期 10, 页码 1155-1160出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/0095897021000023158
关键词
manganese(II); x-ray structure; pi-pi interactions; 2,2 '-bipyridine
The title complex [Mn(bipy)(2)Cl-2] . 0.5bipy . 2H(2)O, 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)Angstrom, alpha=76.85(2), beta=89.55(2), gamma=86.52(2)degrees. 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)Angstrom. A pi-pi interaction is also observed between adjacent bipy rings. The chelating bipy and free bipy showed different IR absorptions.
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