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İzahPotassium-cyanide-phase-I-unit-cell-3D-SF.png
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. B47 (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.
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Ben Mills
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{{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
fayl, potassium, cyanide, phase, unit, cell, fayl, faylın, tarixçəsi, fayl, keçidləri, faylın, qlobal, istifadəsisınaq, göstərişi, ölçüsü, piksel, digər, ölçülər, piksel, piksel, piksel, faylın, orijinalı, 8206, piksel, fayl, həcmi, mime, növü, image, fayl, vi. Fayl Faylin tarixcesi Fayl kecidleri Faylin qlobal istifadesiSinaq gosterisi olcusu 538 600 piksel Diger olculer 215 240 piksel 431 480 piksel 987 1 100 piksel Faylin orijinali 8206 987 1 100 piksel fayl hecmi 295 KB MIME novu image png Bu fayl Vikimedia Commons dadirve diger layihelerde istifade edile biler Faylin tesvir sehifesine get IzahPotassium cyanide phase I unit cell 3D SF png 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 A 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 lt 111 gt 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 Tarix 11 yanvar 2009 Menbe Oz isi Muellif Ben Mills Icaze Faylin tekrar istifadesi Public domain Public domain false false This work has been released into the public domain by its author Benjah bmm27 This applies worldwide In some countries this may not be legally possible if so Benjah bmm27 grants anyone the right to use this work for any purpose without any conditions unless such conditions are required by law CaptionsazerbaycancaAdd a one line explanation of what this file representsingilisimprtntItems portrayed in this filetesvir ediryaradiciSome value without a Vikiverilenler itemURL nbsp ingilis https commons wikimedia org wiki user Benjah bmm27Wikimedia username nbsp ingilis Benjah bmm27muellifin qisa adi Ben Millscopyright status nbsp ingiliscopyrighted dedicated to the public domain by copyright holder nbsp ingilislisenziyareleased into the public domain by the copyright holder nbsp ingilisyaranma tarixi11 yanvar 2009source of file nbsp ingilisoriginal creation by uploader nbsp ingilis Faylin tarixcesi Faylin evvelki versiyasini gormek ucun gun tarix bolmesindeki tarixlere klikleyin Tarix VaxtKicik sekilOlculerIstifadeciSerh indiki02 13 11 yanvar 2009987 1 100 295 KB 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 lt sup gt lt sup gt are represented by purple spheres and cyanide ions CN lt sup gt lt sup gt exbihit dynamic rotationa Fayl kecidleri Bu sekile olan kecidler Kalium sionid Faylin qlobal istifadesi Bu fayl asagidaki vikilerde istifade olunur ar wikipedia org 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