Lêer:Potassium-cyanide-phase-I-unit-cell-3D-SF.png

Page contents not supported in other languages.
in Wikipedia, die vrye ensiklopedie

Oorspronklike lêer ‎(987 × 1 100 piksels, lêergrootte: 295 KG, MIME-tipe: image/png)

Hierdie lêer kom vanaf Wikimedia Commons en kan ook in ander projekte gebruik word. Die beskrywing op die lêer se inligtingsblad word hieronder weergegee.

Beskrywing

Space-filling model of the unit cell of phase I (rock-salt structure) of potassium cyanide, KCN.

Potassium ions, K+, are represented by purple spheres, and cyanide ions, CN−, exbihit dynamic rotational disorder and are represented by magenta spheres. The lattice parameter a = 6.4802 Å, the temperature is 200 K and the pressure is 54 MPa.

X-ray crystallographic data from H. T. Stokes, D. L. Decker, H. M. Nelson, J. D. Jorgensen (1993). "Structure of potassium cyanide at low temperature and high pressure determined by neutron diffraction". Phys. Rev. B 47 (17): 11082-11092. DOI:10.1103/PhysRevB.47.11082..

"The CN− ions undergo rapid reorientations centered at the Wyckoff 4a position (0,0,0). The time-averaged symmetry of the CN− ions about that point is cubic (point group m-3m). The rotation is not free, but is hindered. The potential energy of the CN− ion is lower for the <111> directions of orientation, and the CN− ion spends more time near those minima."

Model constructed in CrystalMaker 8.1.

Image generated in Accelrys DS Visualizer.
Datum
Bron Eie werk
Outeur Ben Mills
Toestemming
(Hergebruik van die lêer)
Public domain This work has been released into the public domain by its author, Benjah-bmm27. This applies worldwide.

In sommige lande is dit dalk nie wettiglik moontlik nie. Indien so:
Benjah-bmm27 grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

Captions

Add a one-line explanation of what this file represents
imprtnt

Items portrayed in this file

uitbeelding

Lêergeskiedenis

Klik op die datum/tyd om te sien hoe die lêer destyds gelyk het.

Datum/TydDuimnaelDimensiesGebruikerOpmerking
huidig02:13, 11 Januarie 2009Duimnaelskets vir weergawe vanaf 02:13, 11 Januarie 2009987 × 1 100 (295 KG)Benjah-bmm27{{Information |Description = Ball-and-stick model of the unit cell of phase I (rock-salt structure) of potassium cyanide, KCN. Potassium ions, K<sup>+</sup>, are represented by purple spheres, and cyanide ions, CN<sup>−</sup>, exbihit dynamic rotationa

Die volgende bladsy gebruik dié lêer:

Globale lêergebruik

Die volgende ander wiki's gebruik hierdie lêer:

Ontsluit van "https://af.wikipedia.org/wiki/Lêer:Potassium-cyanide-phase-I-unit-cell-3D-SF.png"