Complexation of tetrafluoroboric acid with benzo-15-crown-5
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The extraction of tetrafluoroboric acid from aqueous solutions to a solution of benzo-15-crown-5 (B15С5, 1 mol L-1) in chloroform is shown to occur due to complexation with the ratio of components HBF4: B15С5 = 1: 1.5. It was revealed by IR spectroscopy that the whole crown ether in the extract is coordinated. The 1: 1 HBF4•В15С5 complex was isolated and characterized using IR spectroscopy and X-ray diffraction analysis. The O(2) and O(4) atoms of the crown ether ring participate in the coordination.
Key wordscomplexation tetrafluoroboric acid extraction benzo-15-crown-5
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- 2.A. A. Abramov, Moscow Univ. Chem. Bull., Ser. Khim., 2000, 41, 3.Google Scholar
- 8.G. V. Kostikova, O. G. Krasnova, L. I. Demina, V. I. Zhilov, Zh. Neorg. Khim. [Russ. J. Inorg. Chem.], 2018, No. 11 (in Russian).Google Scholar
- 9.SAINT. Version 6.02A, Bruker AXS Inc. Madison, Wisconsin, USA, 2001.Google Scholar
- 10.SHELXTL-Plus. Version 5.10, Bruker AXS Inc. Madison, Wisconsin, USA, 1997.Google Scholar