Low-temperature infrared studies: III. T
β
C.J.H. Schutte; A.M. Heyns
π
Article
π
1968
π
Elsevier Science
π
English
β 174 KB
The temperature dependence of the v4-bending band of the ND4+ . -ion in (ND4)2Cr207 shows changes at -170Β°, 140\*5. 120\*2 and 80\*5OK. From infrared evidence alone it cannot be decided which of the two possible phase-change sequences, discussed in the text, is correct -there seems to be a correkt