Tetraalkylammonium nitratoborates [R4N][B(NO3)4], R=CH3, C2H5 were produced by the reaction of liquid nitrogen tetraoxide with the corresponding tetrachloridoborates, their density was determined, and the x-ray diffraction patterns and IR spectra were taken. Both salts are hydrolytically stable and insoluble in water.
Both complexes are dimorphic; the temperature of reversible phase transformation is 51° for [(CH3)4N][B(NO3)4] and 64° for [(C2H5)4N][B(NO3)4].
The temperature interval was established and the products of thermal decomposition of the nitratoborates obtained were determined. The decomposition of [(CH3)4N][B(NO3)4] begins at 75°, [(C2H5)4N] ·[B(NO3)4] at 130°. The decomposition products represent a mixture of [R4N]NO3 and B2O3; the gas phase contains nitrogen dioxide and oxygen.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 12, pp. 2670–2675, December, 1970.
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Titova, K.V., Rosolovskii, V.Y. Tetraalkylammonium nitratoborates. Russ Chem Bull 19, 2515–2519 (1970). https://doi.org/10.1007/BF00854900
- Diffraction Pattern
- Liquid Nitrogen