Vapor Pressures of Liquid Ortho–Para Solutions of Deuterium; Excess Thermodynamic Functions and Intermolecular Force Constants

1971 ◽  
Vol 54 (9) ◽  
pp. 3723-3729 ◽  
Author(s):  
W. K. Meckstroth ◽  
David White
Keyword(s):  
Thermodynamic Functions ◽  
Force Constants ◽  
Intermolecular Force ◽  
Vapor Pressures ◽  
Deuterium Excess ◽  
Excess Thermodynamic Functions

Réactions dans le sulfolane. III. Etude des interactions eau–sulfolane

1968 ◽  
Vol 46 (20) ◽  
pp. 3215-3219 ◽  
Author(s):  
R. L. Benoit ◽  
G. Choux
Keyword(s):  
Water Activity ◽  
Thermodynamic Functions ◽  
Proton Acceptor ◽  
Acidity Function ◽  
Vapor Pressures ◽  
Heat Of Solution ◽  
Sulfone Group ◽  
Heats Of Mixing ◽  
Excess Thermodynamic Functions ◽  
System Water

Heats of mixing at 30 °C and vapor pressures at 30, 40, and 50 °C have been measured for the system water–sulfolane. The excess thermodynamic functions ΔGE, ΔHM, and ΔSE have been calculated. The value of the heat of solution [Formula: see text] indicates that the sulfone group is a weak proton acceptor. The effects of water activity on the H− acidity function values in hydroxide media have been compared for the systems water–sulfolane and water–dimethylsulfoxide.

Infrared spectrum, potential constants, and structure of thio-thionyl fluoride

1965 ◽  
Vol 18 (5) ◽  
pp. 627 ◽  
Author(s):  
RD Brown ◽  
GP Pez ◽  
MF O'Dwyer
Keyword(s):  
Electronic Structure ◽  
Infrared Spectrum ◽  
Thermodynamic Functions ◽  
Vibrational Analysis ◽  
Force Constants ◽  
Normal Coordinate ◽  
Infrared Data

An investigation of the infrared spectrum of gaseous thio-thionyl fluoride (SSF2) results in the following assignment of fundamentals: A': v1 760.5�0.2cm-1, v2 718.5�0.2 cm-1, v3 411.2�0.4cm-1, v4 364.1�0.3 cm-1. A": v5 692.3�0.8cm-1, v6 337.6�0.4 cm-1. A normal coordinate vibrational analysis has been performed and a set of ten force constants evaluated. Some conclusions are given regarding the electronic structure of SSF2. Thermodynamic functions based on the usual assumptions have been calculated for SSF2. A set of potential constants has been evaluated for disulphur monoxide, SSO, using the available infrared data.

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