Polyhedral clathrate hydrates of a strong base: Phase relations and crystal structures in the system tetramethylammonium hydroxide-water

@article{Mootz1990PolyhedralCH,
  title={Polyhedral clathrate hydrates of a strong base: Phase relations and crystal structures in the system tetramethylammonium hydroxide-water},
  author={Dietrich Mootz and R. Seidel},
  journal={Journal of inclusion phenomena and molecular recognition in chemistry},
  year={1990},
  volume={8},
  pages={139-157}
}
  • D. Mootz, R. Seidel
  • Published 1990
  • Materials Science
  • Journal of inclusion phenomena and molecular recognition in chemistry
The tetramethylammonium hydroxide-water system has been studied by low-temperature differential thermal analysis and X-ray powder diffraction. The melting diagram was constructed for concentrations between 66.7 and 100 mol% H2O. It shows the existence and stability ranges of as many as eight crystalline hydrate phases:α- andβ-Me4NOH·2H2O (phase transition at −85°C, decomposition atca. 105°C), Me4NOH·4 H2O (melting point 44°C, incongruent),α andβ-Me4NOH·5 H2O (phase transition at 42°C, melting… 
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NMR studies of molecular motion in tetramethylammonium hydroxide pentahydrate
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Polyhedral Clathrate Hydrates. XI. Structure of Tetramethylammonium Hydroxide Pentahydrate
The crystal structure of tetramethylammonium hydroxide pentahydrate has been determined at 25°C by an analysis of the three‐dimensional x‐ray‐diffraction data. The unit cell is orthorhombic with
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There are three general classes of hydrate inclusion compounds: the ‘gas’ hydrates, the per-alkyl onium salt hydrates, and the alkylamine hydrates. The first are clathrates, the second are ionic
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HPF6 is said to form a hexahydrate of a unique clathrate structure in which ions occupy truncated-octahedral cages in a framework of hydrogen-bonded water molecules. N.m.r. studies show, however,
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