Structure, thermal behavior, and IR investigations of (C6H9N2)H2PO4 |
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Authors: | Ahlem Chtioui Amor Jouini |
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Affiliation: | (1) Laboratoire de Chimie du Solide, Département de Chimie, Faculté des Sciences de Monastir, Université du centre, 5019 Monastir, Tunisia |
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Abstract: | Chemical preparation, X-ray single-crystal, thermal behavior, and IR spectroscopy studies of a new dihydrogenmonophosphate associated to an organic cation, the 3-(ammoniummethyl)pyridine dihydrogenmonophosphate (denoted as AMPP) are described. The AMPP crystallizes in the monoclinic system with P21/c space group. The unit cell dimensions are a = 5.8465(2) Å, b = 19.9776(9) Å, c = 7.3103(3) Å, = 90.848(3)° with V = 853.74(4) Å3 and Z = 4. The structure has been solved using direct method and refined to a reliability R factor of 0.0393. The structure of AMPP includes three types of hydrogen bonds. The first one, OH O, links the H2PO4 groups to form infinite inorganic chains [H2PO4]nn–, parallel to the c axis. The two other types, OH N and NH O assemble inorganic chains so as to build up a three-dimensional arrangement. |
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Keywords: | Chemical preparation crystal structure thermal behavior organic dihydrogenmonophosphate infrared spectroscopy |
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