Synthesis, Crystal Structure and Thermal Behavior of a 3-D Barium(II)/Iron(III)-Oxalate Polymer

• 作者: Brian S. Dolinar Gouet Bebga Justin Nenwa Noé Makon Ma Houga
• 来源期刊: 无机化学期刊(英文)
• 学科: 化学
• 关键词: Tris(Oxalato)Ferrate(III) Anion Bimetallic Complex POLYMER Crystal Structure Thermal Stability
• 年，卷（期）: 2014,（2）
• 页码范围: 21-29
• 页数: 9页
• 分类号: O6

摘要

Reaction of Ba(NO3)2 with Fe(NO3)3·9H2O and H2C2O4·2H2O in aqueous medium readily affords, in high yield, the bimetallic complex polymer of chemical composition {Ba6(H2O)17[Fe(C2O4)3]4}·7H2O (1), consistent with the expected ratio of 3BaII vs. 2FeIII. Compound 1 was fully characterized by elemental and thermal analyses, vibrational FTIR spectroscopy, and by single crystal X-ray structure determination. The bulk structure of 1 is a 3-D metal-organic framework held together by intermetallic linkages across oxalate and aqua oxygen bridgings. Thermal analyses of 1 show significant weight losses corresponding to water molecules (lattice and coordinated), followed by the decomposition of the network.