1,3,5-Benzenetricarboxylic acid coordination

Finally we address an STM study providing direct insight into the formation of coordination compounds at a Cu(100) surface, whereby translational and rotational molecular motions are involved. Towards this goal a molecular building block — 1,3,5-benzenetricarboxylic acid (trimesic acid, tma) — was deposited on the copper substrate. At room temperature the carboxylic acid moieties deprotonute and the resulting trimesate admolecules bind flat on... 

Supramolecular gels can also be formed using coordination interactions and gels represent a way to control the positioning of metal ions, for example, in nanoparticle synthesis. The reaction of Fe(N03)3 with 1,3,5-benzenetricarboxylic acid (BTC), for example, forms a coordination polymer gel within minutes. There is extensive cross-linking between the Fe and the tricarboxylic acid which leads to voids within the coordination polymer structure (Scheme 5.10). This gel may be used as a polymerisation template. Methyl methacrylate may be polymerised within the gel matrix by UV irradiation of the monomer, resulting... 

Zhu S, Zhang H, Zhao Y, Shao M, Wang Z, Li M. Synthesis, structures and luminescence of three coordination polymers constructed from rigid 1,3,5-benzenetricarboxylic acid and flexible bis(imidazol-l-yhnethyl)-benzene. J Mol Struct 2008 892 420-6. 

Figure 10 The structure of MOF-76 showing the 6.6 x 6.6 A square channels in the c direction with the rod-like chains of rare earth-oxygen polyhedra REO7 linked together via the benzene ring of 1,3,5-benzenetricarboxylate (RE, black O, gray C, white H, omitted DMF and H2O guest molecules have been removed for clarity). (Reproduced with permission from from R. Wang and Z. Zheng, Rare Earth Complexes with Carboxylic Acids, Polyaminopolycarboxylic Acids and Amino Acids in Chun-Hui Huang, Rare Earth Coordination Chemistry Fundamentals and Applications, (c) John Wiley Sons (Asia) Pte Ltd, 2010.)...

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