2023
DOI: 10.1107/s2053229623003388
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Proton-transfer salts of diphenylphosphinic acid with substituted 2-aminopyridine: crystal structure, spectroscopic and DFT studies

Abstract: Three proton-transfer salts of diphenylphosphinic acid (DPPA) with 2-amino-5-(X)-pyridine (AMPY, X = Cl, CN or CH3), namely, 2-amino-5-chloropyridinium diphenylphosphinate, C5H6ClN2 +·C12H10O2P− (1, X = Cl), 2-amino-5-cyanopyridinium diphenylphosphinate, C6H6N3 +·C12H10O2P− (2, X = CN), and 2-amino-5-methylpyridinium diphenylphosphinate, C6H9N2 +·C12H10O2P− (3, X = CH3), have been synthesized and characterized by FT–IR and 1H NMR spectroscopy, and X-ray cry… Show more

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