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- Title
Synthesis, Structure, and Physicochemical Studies of Hexakis(2,4-dimethylanilinium) Cyclohexaphosphate Hexahydrate.
- Authors
Lamia Khedhiri; Cherif Ben Nasr; Mohamed Rzaigui; Frederic Lefebre
- Abstract
Chemical preparation, crystal structure, thermal analysis, IR absorption, and NMR studies are given for a new organic cyclohexaphosphate, the hexakis(2,4-dimethylanilinium) cyclohexaphosphate hexahydrate ((2,4-Me2C6H3NH3)6P6O18·6 H2O). This compound crystallizes in the monoclinic space group P21/n, with cell parameters a=10.914(4) Å, b=11.198(3) Å, c=25.670(2) Å, β=95.05(4)°, Z=2, and V=3124(2) Å3. Its crystal structure is determined and refined to a final R=0.054 for 4627 independent reflections. The atomic arrangement can be described as a layer organization built by P6O18-ring anions and H2O molecules. Between these layers are located the organic groups that form H-bonds with O-atoms of the P6O18 rings and H2O molecules. Determination of the geometric characteristics of the H-bonds show the existence in this structure of four particularly strong H-bonding contacts (1.75, 1.76, 1.78, and 1.87 Å).
- Subjects
NUCLEAR magnetic resonance; CRYSTALS; THERMAL analysis; HYDROGEN bonding
- Publication
Helvetica Chimica Acta, 2003, Vol 86, Issue 7, p2662
- ISSN
0018-019X
- Publication type
Article