Microwave spectra and structure of hydrogen cyanide-boron trifluoride: an almost weakly bound complex

1993 ◽  
Vol 97 (41) ◽  
pp. 10630-10637 ◽  
Author(s):  
S. W. Reeve ◽  
W. A. Burns ◽  
F. J. Lovas ◽  
R. D. Suenram ◽  
K. R. Leopold
Keyword(s):  
Hydrogen Cyanide ◽  
Boron Trifluoride ◽  
Weakly Bound ◽  
Microwave Spectra

scholarly journals The dielectric coefficients of gases III—Allene, allylene, butanes, butylenes, cyanogen, and hydrogen cyanide—IV— Fluorides of boron, nitrogen, and carbon

1936 ◽  
Vol 156 (887) ◽  
pp. 130-143 ◽  
Keyword(s):  
Hydrogen Cyanide ◽  
Boron Trifluoride ◽  
The Other ◽  
Raw Material ◽  
Nitrogen Trifluoride ◽  
Carbon Tetrafluoride ◽  
Dielectric Coefficient ◽  
The Stability ◽  
Boron Nitrogen

Measurements of dielectric coefficient similar to those recorded in Parts I and II have now been made for the gases allene CH 2 = C = CH 2 , CH 3 —C≡CH, n - and iso -butane, α-, β-, and iso -butylene, cyanogen, hydrogen cyanide, boron trifluoride, nitrogen trifluoride, and carbon tetrafluoride, using the same apparatus as before. Owing to the stability and the ease of working with parallel condensor described in Part II, this was employed exclusively, the condeser G 4 being used to contain the gases. Of these, allylene, iso -butylene, and hydrogen cyanide have appreciable moments, while α-butylene, nitrogen trifluoride, and possibly allene appear to be very slightly polar. The other gases are electrically neutral. β-butylene is of interest since it affords a rather rare example of a gas exhibiting cis-trans isomerism. Unfortunately, the raw material required for making the cis form could not be obtained while the experiments were in progress, so that the measurements have had to be deferred.

Microwave spectra, structure, and dynamics of the weakly bound complex, N2 CO2

2010 ◽  
Vol 133 (24) ◽  
pp. 244303 ◽  
Author(s):  
Daniel J. Frohman ◽  
Edwin S. Contreras ◽  
Ross S. Firestone ◽  
Stewart E. Novick ◽  
William Klemperer
Keyword(s):  
Weakly Bound ◽  
Structure And Dynamics ◽  
Microwave Spectra

Hydrogen Cyanide Polymers from the Impact of Comet P/Shoemaker-Levy 9 on Jupiter

1997 ◽  
Vol 161 ◽  
pp. 179-187
Author(s):  
Clifford N. Matthews ◽  
Rose A. Pesce-Rodriguez ◽  
Shirley A. Liebman
Keyword(s):  
Amino Acids ◽  
Solar System ◽  
Hydrogen Cyanide ◽  
Nitrogen Heterocycles ◽  
Laboratory Studies ◽  
Heterogeneous Solids ◽  
The Many ◽  
Comet Halley ◽  
The Impact ◽  
By Products

AbstractHydrogen cyanide polymers – heterogeneous solids ranging in color from yellow to orange to brown to black – may be among the organic macromolecules most readily formed within the Solar System. The non-volatile black crust of comet Halley, for example, as well as the extensive orangebrown streaks in the atmosphere of Jupiter, might consist largely of such polymers synthesized from HCN formed by photolysis of methane and ammonia, the color observed depending on the concentration of HCN involved. Laboratory studies of these ubiquitous compounds point to the presence of polyamidine structures synthesized directly from hydrogen cyanide. These would be converted by water to polypeptides which can be further hydrolyzed to α-amino acids. Black polymers and multimers with conjugated ladder structures derived from HCN could also be formed and might well be the source of the many nitrogen heterocycles, adenine included, observed after pyrolysis. The dark brown color arising from the impacts of comet P/Shoemaker-Levy 9 on Jupiter might therefore be mainly caused by the presence of HCN polymers, whether originally present, deposited by the impactor or synthesized directly from HCN. Spectroscopic detection of these predicted macromolecules and their hydrolytic and pyrolytic by-products would strengthen significantly the hypothesis that cyanide polymerization is a preferred pathway for prebiotic and extraterrestrial chemistry.

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