Structural and vibrational study a new potassium lithium ă dihydrogenphosphate KLi(H2PO4)(2)

T. Rhimi (), N. Nguili, S. Guermazi, Alain Bulou () and M. Toumi
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T. Rhimi: Université de Sfax - University of Sfax
N. Nguili: Université de Sfax - University of Sfax
S. Guermazi: Université de Sfax - University of Sfax
Alain Bulou: IMMM - Institut des Molécules et Matériaux du Mans - UM - Le Mans Université - INC-CNRS - Institut de Chimie - CNRS Chimie - CNRS - Centre National de la Recherche Scientifique
M. Toumi: Université de Sfax - University of Sfax

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Abstract: The single crystal of potassium lithium dihydrogenphosphate ă KLi(H2PO4)(2) (notated as KLDP) was synthesized at room temperature and ă its structure determined by single crystal X-ray diffraction. The ă compound was found to crystallize in the monoclinic system with space ă group P2(1)/c (No.14) and the following parameters a = 7.5197(6), b = ă 12.8943(10) and c = 7.3900(6)angstrom, beta = 98.477(3)degrees, Z = 4. ă This feature structure consists of LiO4 tetrahedra linked by corners ă with H2PO4 groups to form infinite layer running along the ab plane. In ă the interlayer, KO8 polyhedra form layers parallel to the same plane. In ă addition, Raman and infrared spectra were measured at room temperature, ă which confirm the presence of H2PO4, LiO4 groups and ABC bands in the ă unit cell. In fact, these fundamental vibrations were proposed by ă analogy with spectra of other phosphate-based hydrogen-bonded compounds.

Keywords: Crystal structure; Potassium; Lithium; Dihydrogenphosphate; Vibrational spectroscopy (search for similar items in EconPapers)
Date: 2016-09
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Published in Vibrational Spectroscopy, 2016, 86, pp.50-60. ⟨10.1016/j.vibspec.2016.05.008⟩

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Persistent link: https://EconPapers.repec.org/RePEc:hal:journl:hal-01981800

DOI: 10.1016/j.vibspec.2016.05.008

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