scholarly journals CRYOGENIC RAMAN SPECTROSCOPIC STUDIES IN THE SYSTEM NaCl-CaCl2-H2O AND IMPLICATIONS FOR LOW TEMPERATURE PHASE BEHAVIOR IN AQUEOUS FLUID INCLUSIONS

2000 ◽  
Vol 38 (1) ◽  
pp. 35-43 ◽  
Author(s):  
I. M. Samson ◽  
R. T. Walker
Keyword(s):  
Low Temperature ◽  
Phase Behavior ◽  
Fluid Inclusions ◽  
Spectroscopic Studies ◽  
Aqueous Fluid ◽  
Temperature Phase ◽  
Raman Spectroscopic ◽  
Low Temperature Phase

Structural Definition of the Low-Temperature Phase Transition of Tris(ethane-1,2-diamine)zinc(II) Dinitrate

2003 ◽  
Vol 56 (4) ◽  
pp. 287 ◽  
Author(s):  
Paul V. Bernhardt ◽  
Mark J. Riley
Keyword(s):  
Phase Transition ◽  
Low Temperature ◽  
Complex Cation ◽  
Spectroscopic Studies ◽  
Temperature Phase ◽  
Temperature Structure ◽  
Reversible Phase Transition ◽  
Temperature Phase Transition ◽  
Definition Of ◽  
Low Temperature Phase

The 93 K X-ray crystal structure of tris(ethane-1,2-diamine)zinc(II) dinitrate is reported. As predicted by the spectroscopic studies of other workers, there is a reversible phase transition of the structure at low temperature. We have determined this temperature to be 143 K. The structure at this temperature and below resembles that of the room temperature structure, except the crystallographic D3 symmetry of the complex cation (296 K) is lowered to C2 (below 144 K) by subtle changes in cation–anion hydrogen bonding. No change in the conformation of the cation or its bond lengths and angles was found.

The low-temperature phase behavior of aqueous trehalose

Cryobiology ◽  
1985 ◽  
Vol 22 (6) ◽  
pp. 608-609
Author(s):  
D.S. Reid ◽  
J. Crowe ◽  
L. Crowe
Keyword(s):  
Low Temperature ◽  
Phase Behavior ◽  
Temperature Phase ◽  
Low Temperature Phase
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