《Synthesis and crystal structure differences between fully and partially fluorinated β-diketonate metal (Co2+, Ni2+, and Cu2+) complexes》 was published in International Journal of Inorganic Chemistry in 2011. These research results belong to Hori, Akiko; Mizutani, Masaya. Synthetic Route of C9H5F5O2 The article mentions the following:
Coordination complexes, [Co2(1)4(H2O)2] (2), [Ni2(1)4(H2O)2] (3), and [Cu(1)2] (4), by using an asym. and partially fluorinated 3-hydroxy-3-pentafluorophenyl-1-phenyl-2-propen-1-one (H1) were prepared, and the structures were studied to compare with the corresponding fully fluorinated complexes of [Co2(5)4(H2O)2] (6), [Ni2(5)4(H2O)2] (7), and [Cu(5)2] (8) with bis(pentafluorobenzoyl)methane (H5) and to understand the fluorine-substituted effects. While the coordination mode of the partially fluorinated complexes was quite similar to the fully fluorinated complexes, the intra- and inter-mol. π-interactions of the ligand moieties were highly influenced by the fluorination effects; the arene-perfluoroarene interactions were observed in complexes 2 and 3 as a reason of the dinucleation. The authors describe detail structures of the protonated form of the ligand, H1, and complexes 2-4 by x-ray crystallog. studies. In the experiment, the researchers used Ethyl 2,3,4,5,6-pentafluorobenzoate(cas: 4522-93-4Synthetic Route of C9H5F5O2)
Ethyl 2,3,4,5,6-pentafluorobenzoate(cas: 4522-93-4) belongs to esters.Synthetic Route of C9H5F5O2 They are important in biology, being one of the main classes of lipids and comprising the bulk of animal fats and vegetable oils.Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics