Isotopically selective spectroscopy and photochemistry of s-tetrazine in crystals and mixed crystals at low temperature

1976 ◽  
Vol 98 (18) ◽  
pp. 5443-5450 ◽  
Author(s):  
R. M. Hochstrasser ◽  
D. S. King
Keyword(s):  
Low Temperature ◽  
Mixed Crystals

Low Temperature Behaviour of Betaine Phosphate-Betaine Arsenate Mixed Crystals

2004 ◽  
Vol 63 (1) ◽  
pp. 143-148 ◽  
Author(s):  
A. ALMEIDA ◽  
S. SARMENTO ◽  
J. L. RIBEIRO ◽  
L. G. VIEIRA ◽  
M. R. CHAVES ◽  
...  
Keyword(s):  
Low Temperature ◽  
Mixed Crystals ◽  
Temperature Behaviour

The thermodynamics of mixed crystals of ammonium chloride and ammonium bromide. I. The heat capacity from 8 K to 476 K of an approximately equimolar mixture

1980 ◽  
Vol 372 (1751) ◽  
pp. 489-496 ◽  
Keyword(s):  
Heat Capacity ◽  
Low Temperature ◽  
Thermodynamic Parameters ◽  
Ammonium Chloride ◽  
Mixed Crystal ◽  
Mixed Crystals ◽  
Equimolar Mixture ◽  
Ammonium Bromide ◽  
Cubic Crystal ◽  
Type Transition

The heat capacity of a mixed crystal of ammonium chloride and ammonium bromide, of formula NH 4 Br, 0.55 Cl 0.45 , has been measured for temperatures in the range 8-300 K in one calorimeter, and 270K-476K in a second calorimeter. The mixed crystal undergoes a >.-type transition at T = 271.2K, and an essentially isothermal transition, to a facecentred cubic crystal, at 382.8 K. At this second transition, considerable superheating of the low-temperature form and supercooling of the hightemperature form can occur. Thermodynamic parameters for the mixed crystal are given at rounded temperatures.

Low temperature TL glow curves in KBrxI1-x mixed crystals

1984 ◽  
Vol 19 (2) ◽  
pp. 173-177 ◽  
Author(s):  
P. Veeresham ◽  
U. V. Subba Rao ◽  
V. Hari Babu
Keyword(s):  
Low Temperature ◽  
Mixed Crystals

Low-temperature Raman spectra of Hg2(Br,I)2 mixed crystals

2003 ◽  
Vol 45 (6) ◽  
pp. 1131-1136
Author(s):  
Yu. F. Markov ◽  
E. M. Roginskii
Keyword(s):  
Low Temperature ◽  
Raman Spectra ◽  
Mixed Crystals
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