Calorimetric and spectroscopic studies of the critical phase transition in (CH3NH3)2[SnCl6]

✍ Scribed by Takasuke Matsuo; Masakatsu Ueda; Hiroshi Suga

• Publisher: Elsevier Science
• Year: 1981
• Tongue: English
• Weight: 374 KB
• Volume: 82
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(81)85444-9

✦ Synopsis

Recewed 6 bhry 198 1; in final form 4 June 1981 (CHaNHa)a [SnCle] undergoes a cr~hcal phase transrtion at 154.32 f 0.06 R with the critical exponents CL = 0.36 +_ 0.04, $ = 0.19 i_ 0.02, the critical entropy ratio 0 062 and the total transition entropy (1.60 + 0.18) R. Infrared spectral change favors the order-drsorder mechanism of the transrtron proposed from the thermodynanuc data.