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The low-temperature phase of morpholinium tetra-fluoro-borate.

Owczarek M, Szklarz P, Jakubas R, Lis T - Acta Crystallogr Sect E Struct Rep Online (2008)

Bottom Line: Hydrogen-bonded morpholinium cations form chains along the [100] direction.The BF(4) (-) anions are connected to these chains by N-H⋯F hydrogen bonds.In the crystal structure, two different layers perpendicular to the [001] direction can be distinguished, which differ in the geometry of the hydrogen bonds between cationic and anionic species.

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Affiliation: Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland.

ABSTRACT
The crystal structure of the low-temperature form of the title compound, C(4)H(10)NO(+)·BF(4) (-), was determined at 80 K. Two reversible phase transitions, at 158/158 and 124/126 K (heating/cooling), were detected by differential scanning calorimetry for this compound, and the sequence of phase transitions was subsequently confirmed by single-crystal X-ray diffraction experiments. The asymmetric unit at 80 K consists of three BF(4) (-) tetra-hedral anions and three morpholinium cations (Z' = 3). Hydrogen-bonded morpholinium cations form chains along the [100] direction. The BF(4) (-) anions are connected to these chains by N-H⋯F hydrogen bonds. In the crystal structure, two different layers perpendicular to the [001] direction can be distinguished, which differ in the geometry of the hydrogen bonds between cationic and anionic species.

No MeSH data available.


Asymmetric unit of the title compound with atom labelling scheme. The displacement ellipsoids were drawn at the 50% probability level.
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Fap1: Asymmetric unit of the title compound with atom labelling scheme. The displacement ellipsoids were drawn at the 50% probability level.


The low-temperature phase of morpholinium tetra-fluoro-borate.

Owczarek M, Szklarz P, Jakubas R, Lis T - Acta Crystallogr Sect E Struct Rep Online (2008)

Asymmetric unit of the title compound with atom labelling scheme. The displacement ellipsoids were drawn at the 50% probability level.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2961037&req=5

Fap1: Asymmetric unit of the title compound with atom labelling scheme. The displacement ellipsoids were drawn at the 50% probability level.
Bottom Line: Hydrogen-bonded morpholinium cations form chains along the [100] direction.The BF(4) (-) anions are connected to these chains by N-H⋯F hydrogen bonds.In the crystal structure, two different layers perpendicular to the [001] direction can be distinguished, which differ in the geometry of the hydrogen bonds between cationic and anionic species.

View Article: PubMed Central - HTML - PubMed

Affiliation: Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland.

ABSTRACT
The crystal structure of the low-temperature form of the title compound, C(4)H(10)NO(+)·BF(4) (-), was determined at 80 K. Two reversible phase transitions, at 158/158 and 124/126 K (heating/cooling), were detected by differential scanning calorimetry for this compound, and the sequence of phase transitions was subsequently confirmed by single-crystal X-ray diffraction experiments. The asymmetric unit at 80 K consists of three BF(4) (-) tetra-hedral anions and three morpholinium cations (Z' = 3). Hydrogen-bonded morpholinium cations form chains along the [100] direction. The BF(4) (-) anions are connected to these chains by N-H⋯F hydrogen bonds. In the crystal structure, two different layers perpendicular to the [001] direction can be distinguished, which differ in the geometry of the hydrogen bonds between cationic and anionic species.

No MeSH data available.