Four New Ag(I) Coordination Polymers: Synthesis, Crystal Structures and Thermal Stability
Four silver(I) coordination polymers of composition [Ag6(bptp)3(OOCCF2CF2COO)3]∞ (1), [Ag5(bptp)2(CF3SO3)5(CH3COCH3)2]∞ (2), [Ag(bmtm)(C10H7SO3)]∞ (3), and [Ag10(bpte)4(NO3)10]∞ (4) (bmtm = bis(methylthio)methane, bpte = 1,2-bis(phenylthio)ethane, bptp = 1,3-bis(phenylthio)propane) have been synthesized and structurally characterized. The 2D-coordination networks of both 1 and 2 consist of two meshed networks, (Ag-anion)∞ and (Ag-ligand)∞, which share their silver atoms. The 1D-coordination polymers of 3 are associated through weak van der Waals interactions into 2D network while polymer 4 forms a tubular structure. Relatively short Ag···Ag interactions are found in both 1 and 3. The stoichiometries of the obtained polymers were found to be independent of the starting materials metal-to-ligand ratio except for coordination polymer 4. Thermogravimetric analyses of 1 and 2 revealed that they decompose in a single step to metallic silver while 3 and 4 showed a two-step weight loss.
KeywordsCoordination polymer Crystal structure FTIR Thermal analysis
This work was supported by the Centre d’Etude et de Recherche de Djibouti (M. O. A.) and the Natural Sciences and Engineering Research Council of Canada (F. B.).
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