A novel carboxylic coordination polymer of samarium(III): [Sm(H2O)(4,4 '-bipyridine)(CCl2HCOO)(3)](n)

作者：Kruszynski Rafal^*; Czylkowska Agnieszka; Czakis Sulikowska Danuta

来源：Journal of Coordination Chemistry, 2006, 59(6): 681-690.

DOI：10.1080/00958970500345356

• samarium(III)
• 4,4 '-bipyridine
• dichloroacetate
• thermal decomposition
• crystal structure
• valence

A novel mixed ligand complex [Sm(H2O)(4,4'-bpy)(CCl2HCOO)(3)](n) has been synthesized and characterized by elemental and thermal analysis, IR and conductivity studies. A coupled TG - MS system was used to monitor principal volatile fragments evolved during pyrolysis. The crystal and molecular structure of the complex was determined. The samarium atom is nine coordinated by two oxygen atoms from one chelating tridentate dichloroacetate ligand, four oxygen atoms from four bidentate bridging dichloroacetate groups, one oxygen atom from a bridging tridentate dichloroacetate ligand, one water molecule and one nitrogen atom from 4,4'-bipyridyl. The coordination polyhedron can be described as tricapped trigonal prism, distorted towards a capped tetragonal antiprism. Molecules are linked up by O-H center dot center dot center dot N hydrogen bonds and stacking interactions to give a two-dimensional net.

• 出版日期2006-4-15