NEW RHENIUM CENTERS IN AMMONIUM AND POTASSIUM PERRHENATES

Authors
ANUSUYA B MURTY VS RAO KVSR
Citation
B. Anusuya et al., NEW RHENIUM CENTERS IN AMMONIUM AND POTASSIUM PERRHENATES, Journal of molecular structure, 344(1-2), 1995, pp. 135-142
Citations number
27
Categorie Soggetti
Chemistry Physical
Journal title
Journal of molecular structure → ACNP
ISSN journal
00222860
Volume
344
Issue
1-2
Year of publication
1995
Pages
135 - 142
Database
ISI
SICI code
0022-2860(1995)344:1-2<135:NRCIAA>2.0.ZU;2-Z
Abstract
Single crystals of ammonium perrhenate (NH4ReO4) and potassium perrhen ate (KReO4) when gamma-irradiated at 77 K gave new paramagnetic center s. The paramagnetic centers formed at 77 K are identified as ReO3 and O- in both the samples. However, when temperature variation studies we re carried out, it was found that these centers dissociate into Re-O a nd O-3(-) at about 230 K. The g-tensor and hyperfine (A) tenser for al l the centers observed in both the systems are found to be isotropic.