Raman spectroscopic investigations on molecular crystals: Pressure and temperature dependence of external phonons in naphthalene‐d8and anthracene‐d10

1987 ◽  
Vol 86 (8) ◽  
pp. 4582-4596 ◽  
Author(s):  
W. Häfner ◽  
W. Kiefer
2004 ◽  
Vol 18 (09) ◽  
pp. 367-373 ◽  
Author(s):  
I. ARDELEAN ◽  
N. MUREŞAN ◽  
P. PĂŞCUŢĂ

The Cr 2 O 3 content influence on the structure of 70 TeO 2·25 B 2 O 3·5 SrO glasses, was investigated by infrared and Raman spectroscopies. The results show that BO 3 and BO 4 are among the main structural units in the investigated glasses, together with TeO 3 and TeO 4 units. The presence of chromium ions located in the glass network is well evidenced in the IR and Raman spectra.


1975 ◽  
Vol 30 (3-4) ◽  
pp. 198-201 ◽  
Author(s):  
Paul K. Burkert ◽  
Frank Hutter ◽  
Detlev Koth

The four 185Re, 187Re—NQR-transitions of RbReO4 were measured. From the NQR-coupling constants, asymmetry-parameter and normal temperature-coefficient in the range of 77-300°K one can conclude, that the anomalons temperature dependence of the NQR-frequencies of NH4ReO4 is not caused by the absolute values of certain lattice parameters.An experimental correlation of the Re—NQR-coupling constants of scheelite-structured perrhenates with the length of the elementar cell was found and discussed.


2020 ◽  
Vol 51 (9) ◽  
pp. 1874-1884
Author(s):  
Yanmei Xu ◽  
Xia Chen ◽  
Liang Wang ◽  
Ke Bei ◽  
Junliang Wang ◽  
...  

1989 ◽  
Vol 25 (8) ◽  
pp. 950-953
Author(s):  
E. S. Levitina ◽  
I. P. Yakovlev ◽  
E. D. Lubuzh ◽  
L. F. Godunova ◽  
E. I. Karpeiskaya ◽  
...  

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