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1989 (1)
1Author    R. Zaleski, Z. Jakubas, L. Galewski, SobczykRequires cookie*
 Abstract    Dielectric. DSC and preliminary X-ray diffraction studies on [(C2H5)4N]3Sb2Br9 (TEABA) and [(C2H5)4N]3Bi2Br9 (TEABB) are reported. The compounds are isomorphous, space group P6322. The static electric permittivity measurements on single crystals in the temperature range 220 290 K revealed that both compounds show two distinct dielectric anomalies; TEABA at Tcl = 258 K and Tc2 = 252 K, while TEABB at Tcl= 265 K and Tcl = 248 K. The DSC studies show only one anomaly of first order at TcX =258 K for TEABA, and TcX =266 K for TEABB. These transitions are pre­ sumably related to a freezing of the reorientational motion of the tetraethylammonium cations. S tr u c tu r a l P h a s e T ra n s itio n s in |(C 2H 5)4N ] 3S b 2B r 9 a n d |(C 2H 5) 4N |3B i2B r 9 
  Reference    Z. Naturforsch. 44a, 1102 (1989); received May 11 1989 
  Published    1989 
  Keywords    Alkylammonium halogenoantimonates, Bismuthates, Phase transition Dielectric, DSC, Single crystals 
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 TEI-XML for    default:Reihe_A/44/ZNA-1989-44a-1102.pdf 
 Identifier    ZNA-1989-44a-1102 
 Volume    44