Ammonium hexafluorosilicate (cas 16919-19-0) salts
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Add time:08/06/2019 Source:sciencedirect.com
The preparation and characterization of the Ammonium hexafluorosilicate (cas 16919-19-0) salts, 2[R]+ [SiF6]2− (where R=piperidinium (2), methylammonium (3), quinolinium (4), acridinium (5), 2,2,6,6-tetramethylpiperidinium (6), and propylammonium (7)) is described.The salts were prepared from the reaction of the corresponding alkylammonium fluoride with silica gel. The compounds were characterized by NMR, IR, mass spectrometry and in the case of 1 (piperidinium fluoride), 2–4 by X-ray crystallography. Compounds 1–3 crystallize in the orthorhombic crystal system (space groups Iba2, Fdd2, and Pnnm, respectively), with Z=8, 14, and 4, respectively. Compound 4 crystallizes in the triclinic space group P-1, with Z=2. Compounds 1–4 exhibit hydrogen bonding.
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