ESR measurements on the polymerization of liquid selenium

✍ Scribed by D.C. Koningsberger; J.H.M.C. van Wolput; P.C.U. Rieter

• Publisher: Elsevier Science
• Year: 1971
• Tongue: English
• Weight: 207 KB
• Volume: 8
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(71)80600-0

✦ Synopsis

In an earlier communication ESR measurementson de-oxygenized selenium were announced. The present paper reports on further ESR measurements on liquid de-oxygenized selenium carried out in a temperature interval 240°C < T c 420°C. The g-value of the ESR signal is found to be 2.03 + 0.02. The temperature dependence of the intensity and linewidth are interpreted as caused by a polymerization process. The heat of scission selenium-selenium bonds in chains was calculated to be 29 * 3 kcaI/moIe. It seems that this is the first time, that ESH signals from pure liquid selenium have been reported.