Di-methyl-ammonium 2,4,5-tri-carb-oxy-benzoate: an example of the deca-rbonylation of N,N-di-methyl-formamide in the presence of a metal and a benzene-polycarb-oxy-lic acid. Is zirconium(IV) the Tsotsi?

ABSTRACT: The title salt, C₂H₈N⁺·C₁₀H₅O₈^-, was the unexpected product of an attempt to prepare a Zr^IV metal-organic framework with benzene-1,2,4,5-tetra-carb-oxy-lic acid (1,2,4,5-H₃B4C). In the reaction, the DMF solvent has been decarb-on-yl-ated, forming the di-methyl-ammonium cation, with one proton lost from the tetra-carb-oxy-lic acid. It is proposed that the Zr^IV salt acts as a Tsotsi or robber, plundering CO from the DMF mol-ecule. The resulting salt crystallizes with two cations and two anions in the asymmetric unit. An intra-molecular hydrogen bond forms between a carb-oxy-lic acid substituent and the carboxyl-ate group of each of the monodeprotonated (1,2,4,5-H₃B4

SUBMITTER: Hulushe ST 

PROVIDER: S-EPMC5095824 | biostudies-literature | 2016 Nov

REPOSITORIES: biostudies-literature