Deutsch
 
Hilfe Datenschutzhinweis Impressum
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT

Freigegeben

Zeitschriftenartikel

Crystal structure, thermal and compositional deformations of β-CsB5O8

MPG-Autoren
/persons/resource/persons135493

Dinnebier,  R. E.
Scientific Facility X-Ray Diffraction (Robert E. Dinnebier), Max Planck Institute for Solid State Research, Max Planck Society;

Externe Ressourcen
Es sind keine externen Ressourcen hinterlegt
Volltexte (beschränkter Zugriff)
Für Ihren IP-Bereich sind aktuell keine Volltexte freigegeben.
Volltexte (frei zugänglich)
Es sind keine frei zugänglichen Volltexte in PuRe verfügbar
Ergänzendes Material (frei zugänglich)
Es sind keine frei zugänglichen Ergänzenden Materialien verfügbar
Zitation

Bubnova, R., Dinnebier, R. E., Filatov, S., & Anderson, J. (2007). Crystal structure, thermal and compositional deformations of β-CsB5O8. Crystal Research and Technology, 42(2), 143-150.


Zitierlink: https://hdl.handle.net/21.11116/0000-000E-B823-B
Zusammenfassung
The crystal structure of beta-CsB5O8 has been determined from X-ray powder diffraction data using synchrotron radiation: Pbca, a=7.8131(3) angstrom, b=12.0652(4) angstrom, c=14.9582(4) angstrom, Z=8, rho(calc) = 2.967 g/cm(3), R-p=0.076, R-wp=0.094. beta-CsB5O8 was found to be isostructural with beta-KB5O8 and beta-RbB5O8. The crystal structure consists of a double interlocking framework built up from B-O pentaborate groups. The crystal structure exhibits a highly anisotropic thermal expansion: alpha(a)=53, alpha(b)=16, alpha(c)=14 center dot 10(-6)/K; the anisotropy may be caused by partial straightening of the screw chains of the pentaborate groups. The similarity of the thermal and compositional (Cs-Rb-K substitution) deformations of CsB5O8 is revealed: increasing the radius of the metal by 0.01 angstrom leads to the same deformations of the crystal structure as increasing the temperature by 35 degrees C. (c) 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.