Spectrochimica Acta Part A: Molecular Spectroscopy
Infrared spectra of the ammonium ion in ammonium hexavanadate (NH4)2V6O16
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2022, International Journal of Hydrogen EnergyCitation Excerpt :The peaks are observed between 3660 and 2680 cm−1 wavelength range is attributed to O–H and N–H stretching bonds [23]. The sharp peak at 3223 cm−1 and the small peak between 1611 and 1509 cm−1 correspond to O–H bonds of water and formed NH4+ ions, respectively [23,50]. The wavelength between 2350 and 2016 cm−1 is attributed to B–H stretching band [23,51,52].
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2022, Applied Surface ScienceCitation Excerpt :The FTIR spectrum of PB (Fig. 4(c)) includes the prominent peaks of PB microframes at ∼2068 and 500–600 cm−1, which were attributed to the FeCNFe and CN stretching vibrations, respectively. Owing to the high temperature and long duration of the hydrothermal reaction, K3[Fe(CN)6] decomposed and yielded ammonium (NH4+) ions, and CN bonds formed [41–46]. The absorption bands at 3448 cm−1 in the FTIR spectrum of PB corresponded to the NH bonds which originated from the NH4+ in the PB crystals (Fig. S4#).
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