All-welded low-temperature vacuum vessel for the study of infrared spectra of solids and adsorbed molecules

1969 ◽  
Vol 10 (5) ◽  
pp. 598-599
Author(s):  
Yu. M. Shchekochikhin ◽  
A. A. Davydov ◽  
N. A. Akulich ◽  
Yu. S. Tarasevich
Keyword(s):  
Low Temperature ◽  
Infrared Spectra ◽  
Vacuum Vessel ◽  
Adsorbed Molecules

Influence of temperature on the infrared spectra of adsorbed molecules

1971 ◽  
Vol 12 (1) ◽  
pp. 45-48
Author(s):  
Yu. M. Shchekochikhin ◽  
A. A. Davydov ◽  
Yu. S. Tarasevich ◽  
N. P. Keier
Keyword(s):  
Infrared Spectra ◽  
Adsorbed Molecules ◽  
Influence Of Temperature ◽  
Influence Of Temperature On

Infrared spectra of the ammonium ion in crystals. Part VIII. Spectroscopic criteria of highly-bent hydrogen bonds

1980 ◽  
Vol 58 (9) ◽  
pp. 867-874 ◽  
Author(s):  
Osvald Knop ◽  
Wolfgang J. Westerhaus ◽  
Michael Falk
Keyword(s):  
Low Temperature ◽  
Hydrogen Bonds ◽  
Infrared Spectra ◽  
Room Temperature ◽  
Ammonium Ion ◽  
Temperature Transition ◽  
Increasing Temperature

Available evidence suggests that (1) the stretching frequencies of highly-bent hydrogen bonds decrease with increasing temperature, regardless of whether the bonds are static or dynamic in character, to a single acceptor or to several competing acceptors; and (2) departures from symmetric trifurcation (or bifurcation) toward asymmetric situations lower the stretching frequency. In further support of these criteria isotopic probe ion spectra between 10 K and room temperature have been obtained for taurine and for trigonal (NH4)2MF6 (M = Si, Ge, Sn, Ti). Evidence of a low-temperature transition at 100(10) K in trigonal (NH4)2SnF6 is presented, and existence of the previously reported transition at 38.6 K in trigonal (NH4)2SiF6 is confirmed. Symmetry changes associated with these transitions are discussed.

High-temperature cells for studying the infrared spectra of solids and adsorbed molecules

1968 ◽  
Vol 8 (4) ◽  
pp. 424-426
Author(s):  
Yu. M. Shchekochikhin ◽  
V. M. Shchekochikhin ◽  
N. A. Akulich ◽  
O. I. Yakovlev
Keyword(s):  
High Temperature ◽  
Infrared Spectra ◽  
Adsorbed Molecules

Theoretical and Experimental Studies of Enflurane. Infrared Spectra in Solution, in Low-Temperature Argon Matrix and Blue Shifts Resulting from Dimerization

2007 ◽  
Vol 111 (42) ◽  
pp. 12228-12238 ◽  
Author(s):  
Danuta Michalska ◽  
Dariusz C. Bieńko ◽  
Bogusława Czarnik-Matusewicz ◽  
Maria Wierzejewska ◽  
Camille Sandorfy ◽  
...  
Keyword(s):  
Low Temperature ◽  
Infrared Spectra ◽  
Experimental Studies ◽  
Argon Matrix
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