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The pyridine derivatives, 2-amino-5-nitropyridine and 2-amino-6-methylpyridine (6-aminopicolin), were used that for synthesis of two new non-metal cation (NMC)s pentaborate structures. The NMCs pentaborate molecules were characterized using 11B-NMR, elemental analysis, BET, FT-IR, P-XRD and melting points technics. The thermal properties had been investigated by TGA/DTA/DTG methods. 2-amino-5-nitropyridine and 2-amino-6-methyl pyridine (NMC)s pentaborates showed different thermal stabilities among each other, but degradation of the dehydration of the following organic both NMC pentaborate structure as part away and decomposition products of B2O3 occurs by having glassy structure. The trigonal (BO3) and tetragonal (BO4-) moities were determined in 11B NMR spectrums. According to P-XRD methods each of the compound structures are crystalline form. The peaks of pentaborate anion [B5O6(OH)4]- were seemed in FT-IR spectra. Lastly, the hydrogen storage properties were studied of these molecules. The estimated molecular formulas of the complexes are as follows: 2-amino-5-nitropyridine pentaborate: [C5H5N3O2][B5O6(OH)4]3H2O 2-amino-6-methylpyridine pentaborate: C6H8N2][B5O6(OH)4]2H2O   Keywords: Boron; Non-metal cation borate structure; Pentaborate; P-XRD; Thermal investigation; 11B-NMR DOI: 10.17350/HJSE190314 Full Text:

hittite journal of science and engineering-b/hittite journal of science and engineering

Synthesis, spectroscopic and thermal characterization of non-metal cation (nmc) pentaborates salts containing 2-amino-5-nitropyridine and 2-amino-6-methylpyridine as cation