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Potassium sodium (2R,3R)-tartrate tetra-hydrate: the paraelectric phase of Rochelle salt at 105 K.

Görbitz CH, Sagstuen E - Acta Crystallogr Sect E Struct Rep Online (2008)

Bottom Line: Rochelle salt, K(+)·Na(+)·C(4)H(4)O(6) (2-)·4H(2)O, is known for its remarkable ferroelectric state between 255 and 297 K.The current investigation, based on data collected at 105 K, provides very accurate structural information for the low-temperature paraelectric form.Unlike the ferroelectric form, there is only one tartrate molecule in the asymmetric unit, and the structure displays no disorder to large anisotropic atomic displacements.

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ABSTRACT
Rochelle salt, K(+)·Na(+)·C(4)H(4)O(6) (2-)·4H(2)O, is known for its remarkable ferroelectric state between 255 and 297 K. The current investigation, based on data collected at 105 K, provides very accurate structural information for the low-temperature paraelectric form. Unlike the ferroelectric form, there is only one tartrate molecule in the asymmetric unit, and the structure displays no disorder to large anisotropic atomic displacements.

No MeSH data available.


: The molecular structure of (I). Displacement ellipsoids are shown at the 50% probability level. Metal ccordination has been indicated by dashed lines.
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Fap1: : The molecular structure of (I). Displacement ellipsoids are shown at the 50% probability level. Metal ccordination has been indicated by dashed lines.


Potassium sodium (2R,3R)-tartrate tetra-hydrate: the paraelectric phase of Rochelle salt at 105 K.

Görbitz CH, Sagstuen E - Acta Crystallogr Sect E Struct Rep Online (2008)

: The molecular structure of (I). Displacement ellipsoids are shown at the 50% probability level. Metal ccordination has been indicated by dashed lines.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2960997&req=5

Fap1: : The molecular structure of (I). Displacement ellipsoids are shown at the 50% probability level. Metal ccordination has been indicated by dashed lines.
Bottom Line: Rochelle salt, K(+)·Na(+)·C(4)H(4)O(6) (2-)·4H(2)O, is known for its remarkable ferroelectric state between 255 and 297 K.The current investigation, based on data collected at 105 K, provides very accurate structural information for the low-temperature paraelectric form.Unlike the ferroelectric form, there is only one tartrate molecule in the asymmetric unit, and the structure displays no disorder to large anisotropic atomic displacements.

View Article: PubMed Central - HTML - PubMed

ABSTRACT
Rochelle salt, K(+)·Na(+)·C(4)H(4)O(6) (2-)·4H(2)O, is known for its remarkable ferroelectric state between 255 and 297 K. The current investigation, based on data collected at 105 K, provides very accurate structural information for the low-temperature paraelectric form. Unlike the ferroelectric form, there is only one tartrate molecule in the asymmetric unit, and the structure displays no disorder to large anisotropic atomic displacements.

No MeSH data available.