Kerr Constants of the Hydrogen Halide Gases

Nature ◽  
1936 ◽  
Vol 138 (3484) ◽  
pp. 248-248
Author(s):  
C. H. DOUGLAS CLARK ◽  
E. C. HUMPHRIES
2007 ◽  
Vol 360 (8) ◽  
pp. 2661-2668 ◽  
Author(s):  
Badri Z. Momeni ◽  
Saeideh Hamzeh ◽  
Simin S. Hosseini ◽  
Frank Rominger

Author(s):  
F. G. Khalitov ◽  
A. N. Vereshchagin ◽  
L. A. Gorchakova ◽  
A. P. Timosheva
Keyword(s):  

1986 ◽  
Vol 51 (5) ◽  
pp. 1094-1099 ◽  
Author(s):  
Ivo Bláha ◽  
Ladislav Lešetický

This study concerns the synthesis of β-sustituted β-nitrostyrenes by two procedures: addition of nitryl halogenides to double bonds, connected with the elimination of hydrogen halide, and condensation of aldehydes with substituted nitromethanes, and it compares the utilizability of the two procedures. Two of the substances prepared, methyl (Z)-nitro-3-phenylpropenoate and (Z)-4-phenyl-β-nitro-β-buten-2-one, were submitted to Z-E isomerization at various temperatures, and thermodynamic isomerization parameters were estimated from the dependence of the equilibrium constants on temperature.


1973 ◽  
Vol 51 (2) ◽  
pp. 292-301 ◽  
Author(s):  
Jean Bouix ◽  
Roger Hillel

By the action of H2S on boron halides (other than fluoride) one obtains the new substitution products BX2SH, BX(SH)2, and B(SH)3 along with the corresponding hydrogen halide. These halogenosulfhydroboranes are unstable and cyclize to cyclic boron sulfides, either (BSSH)3 or (BSX)3.In the case of boron bromide it is possible, by controlling the ratio of the reactants and the temperature of the reaction, to promote the formation of one of the three possible substitution products. Then by encouraging cyclization one may obtain, rapidly and selectively, either (BSSH)3 or (BSBr)3.Synthesis of (BSCl)3 was accomplished by dissolution of (BSSH)3 in liquid BCl3 and that of (BSI)3 by the action of H2S on solid BI3. [Journal translation]


1990 ◽  
Vol 23 (4) ◽  
pp. 1139-1144 ◽  
Author(s):  
Francisco Mendicuti ◽  
Maria M. Rodrigo ◽  
Maria P. Tarazona ◽  
Enrique Saiz

1980 ◽  
Vol 33 (12) ◽  
pp. 2597 ◽  
Author(s):  
PH Gore ◽  
IG John ◽  
RK Pierens ◽  
GLD Ritchie

Experimental dipole moments and molar Kerr constants are reported and analysed for di(pyridin-4-yl), di(pyridin-3-yl) and di(pyridin-2-yl) ketone as solutes in carbon tetrachloride or cyclohexane at 298 K. The preferred conformation of di(pyridin-4-yl) ketone is found to be very similar to those previously deduced for benzophenone and several 4,4'- disubstituted benzophenones. For di(pyridin-3-yl) and di(pyridin-2-yl) ketone three analogous conrotatory structures having different relative dispositions of the nitrogen atoms are considered. In the case of di(pyridin-3-yl) ketone the cis-trans and trans-trans arrangements are approximately equally abundant, but for di(pyridin-2-yl) ketone there is a strong preference for the trans-trans conformation.


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