Decomposition of allantoin in the presence of Cu(II) ions resulting in the formation of a coordination polymer containing oxalate species

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• 作者：Mariola Puszyń ; ska-Tuszkanow ; Marek Daszkiewicz ; Gabriela Maciejewska ; Maria Cieslak-Golonka
• 关键词：Allantoin ; Copper ; Oxalic acid ; Crystal structure ; IR spectrum ; Electronic spectrum
• 刊名：Inorganic Chemistry Communications
• 出版年：2009
• 出版时间：June 2009
• 年：2009
• 卷：12
• 期：6
• 页码：484-486
• 全文大小：251 K

文摘

A novel Cu(II) coordination polymer, [Cu(ox)(DMSO)₂]_n (1) (ox-oxalate dianion, DMSO-dimethyl sulphoxide) has been prepared in the reaction of copper nitrate dihydrate and allantoin (5-ureidohydantoin) in DMSO/water solution. Compound (1) crystallizes in the monoclinic, space group P121/c1 with a = 5.1785(7), b = 13.6311(18), c = 8.5386(12) Å, β = 107.524(12)°, V = 574,76(14) Å³, Z = 4, D_cal = 1779 mg/m³, R₁ = 0.0449. The metal ion coordinates through four oxygen atoms belonging to two bidentate bridging oxalate ligands, and two oxygen atoms from two DMSO ligands forming an elongated octahedron. The crystal structure was confirmed by FT-IR and Uv–vis spectroscopic data.