The author of 《Fluorine-19 nuclear magnetic resonance studies on some polyfluoro aromatic compounds and their metal complexes》 were Bruce, M. I.. And the article was published in Journal of the Chemical Society [Section] A: Inorganic, Physical, Theoretical in 1968. COA of Formula: C9H5F5O2 The author mentioned the following in the article:
The high-resolution 19F N.M.R. spectra of several polyfluoro aromatic compounds and of derived transition-metal complexes are presented and discussed. Substituent shielding parameters are tabulated for many commonly encountered functional groups, and details of the identification of complex products from the reaction of the anion [(π-C5H5)Fe-(CO)2]- with C6F5CN, 1,2-C6F4I2 and C6F5Br are given. The nature of the complexes formed has been confirmed by use of high-resolution mass-spectrometric techniques in the latter two cases. 17 references. The results came from multiple reactions, including the reaction of Ethyl 2,3,4,5,6-pentafluorobenzoate(cas: 4522-93-4COA of Formula: C9H5F5O2)
Ethyl 2,3,4,5,6-pentafluorobenzoate(cas: 4522-93-4) belongs to esters. Esters are more polar than ethers but less polar than alcohols. COA of Formula: C9H5F5O2 They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics