X-ray diffraction studies on AgI-Ag2O-V2O5 glasses

✍ Scribed by S. Patnaik; K. Muruganandam; M. Seshasayee; H. Ohtaki

• Publisher: Elsevier Science
• Year: 1997
• Tongue: English
• Weight: 353 KB
• Volume: 96
• Category: Article
• ISSN: 0167-2738
• DOI: 10.1016/s0167-2738(96)00532-2

✦ Synopsis

Results of X-ray diffraction studies on glasses in the AgI-Ag,O-V,O, system are presented. In these glasses, the vanadium atom adopted five-fold coordination of oxygen atoms more frequently than four-fold and six-fold and the V-O distances lay between 1.76 and 1.79 A. The VO, polyhedra in the glasses shared comers, the V-V distances in the glasses lay between 3.30-3.41 A. Short and long Ag-0 interactions were observed. An Ag-I interaction between 2.829-2.876 A was observed, which is characteristic of all AgI based glasses. The I-I distance decreased as the iodine content increased, having a value close to that in a-AgI at a high AgI content and approaching the value of @AgI with decreasing AgI content.