Repozytorium
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Kolekcje
Inne
Crystal structure, properties and phase transitions of morpholinum tetrafluoroborate [C4H10NO][BF4].
Autorzy
Rok wydania
2009
Czasopismo
Journal of Molecular Structure
Numer woluminu
929
Strony
48-57
DOI
10.1016/j.molstruc.2009.04.014
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
The crystal structure of [C 4H 10NO][BF 4] is determined in the phase I at 160, 180, 240 and 290 K. At room temperature the compound crystallizes in the orthorhombic space group: Pnam. The structure is composed of the morpholinium cations, [C 4H 10NO] +, which form one-dimensional hydrogen bonded chains, and [BF 4] - anions. [C 4H 10NO][BF 4] undergoes two structural phase transformations: second-order at 153 K and first-order at 117/118 K (cooling/heating). The phase transitions are characterized with the differential scanning calorimetry, dilatometric and dielectric techniques. The possible mechanism of the phase transitions in [C 4H 10NO][BF 4] is discussed on the basis of the presented results.
Słowa kluczowe
Morpholinium tetrafluoroborate, Hydrogen bond, X-ray, Phase transition, DSC, Dielectric
Adres publiczny
https://doi.org/10.1016/j.molstruc.2009.04.014
Strona internetowa wydawcy
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