1,4-diazabicyclo[2.2.2]octane-1,4-diium dihydrogen phosphate monohydrate from X-ray and neutron data
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L'ubomír Smrcok
Abstract
The three-dimensional skeleton of the structure of the title compound is formed by the chains of the hydrogen phosphate units runing approximately parallel to the c-axis. The units are coupled to the chains by three types of hydrogen bonds: strong symmetric O–H–O (O … O = 2.424(4) and 2.425(4) Å) and the moderate P–O–H … O–P and P–O … (H2O) … O–P, respectively. Molecules of the doubly protonated 1,4-diazabicyclo[2.2.2]octane moieties are placed in the voids and in addition for electrostatic interactions they are also hydrogen bonded to the chains built around the PO4 tetrahedron. The DC conductivity measured at the room temperature along the b-axis is very low (≈ 7 × 10–11 S cm–1), while in the perpendicular plane it is for more than two or three orders higher and the nonlinear current vs. potential dependence was registered.
© by Oldenbourg Wissenschaftsverlag, München, Germany
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- 1,4-diazabicyclo[2.2.2]octane-1,4-diium dihydrogen phosphate monohydrate from X-ray and neutron data
- On the concept of long range order in solids: The use of algorithmic complexity
Articles in the same Issue
- Point groups in crystallography
- Non-hydrostatic compression of zeolite NaA in water medium: connection to anomalous conductivity
- Sodium hydrogencarbonate (NaHCO3): coincidence-site lattice twinning and structure refinement
- Crystal chemistry and topology of Rb–MIII molybdates (M = Fe, Sc, In) and triclinic Rb2Mo4O13: novel building blocks, decorated chains and layers
- Structural, spectroscopic and EPR studies of tetraethylammonium tetramethylammonium tetrabomocuprate (II) complex
- Synthesis and structure of [Nd(C6NO2H5)3(H2O)2]2n· (3nHgCl4) · (4nH2O)
- 1,4-diazabicyclo[2.2.2]octane-1,4-diium dihydrogen phosphate monohydrate from X-ray and neutron data
- On the concept of long range order in solids: The use of algorithmic complexity
