7F0-5D1 transition in Eu3+—hexakisantipyrene-triiodide single crystal. A magnetic dipole transition

✍ Scribed by Asoke K. Banerjee; Anup K. Mukhopadhyay; Ranajit K. Mukherjee; Mihir Chowdhury

• Publisher: Elsevier Science
• Year: 1979
• Tongue: English
• Weight: 158 KB
• Volume: 67
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(79)85192-1

✦ Synopsis

The polarised absorption spectrum of Eua+-hexakisantipyrene-triiodide (HAPI) at 77 K along with a Zeeman effect study is reported. The 7F o --, SD l transition has been found to be magnetic dipole allowed. The g value of 1.48 -+ 0.06 for the SD 1 state is in fair agreement with the g value of the free ion. This fact together with the absence of any vibronic band (unlike other HAPI crystals) is indicative of negligible covalent character of the Eu-O bond.