Étude structurale d'une imidazolylcétone l'isopropyl-1-phényl-2-diaza-1,3-one-6-bicyclo[3,3,0]octène-2

1990 ◽  
Vol 68 (12) ◽  
pp. 2192-2197
Author(s):  
Jean-Pierre Reboul ◽  
Pierre Brouant ◽  
Jacques Barbe ◽  
Claude Caranoni ◽  
Catherine Soula ◽  
...  

The solid state configuration of 1-isopropyl-2-phenyl-1,3-diaza-6-one-bicyclo[3.3.0]oct-2-ene was determined from X-ray diffraction data (a = 10.039(3) Å; b = 8.683(3) Å; c = 15.505(6) Å; β = 90.72(9)°; P21/c;R = 0.047). This structure is compared to those of three other related (Δ-2)-imidazolines. Molecular structure in solution was investigated by 1H nuclear magnetic resonance spectroscopy. Results clearly indicate that the title compound has the same structure in the solid state as in solution. On the contrary, this configuration differs appreciably from those of other (Δ-2)-imidazolines considered in this report. Keywords: (Δ-2)-imidazolines, crystal structure, NMR, conformations.

2011 ◽  
Vol 34 (5-6) ◽  
pp. 153-153
Author(s):  
Libasse Diop

Abstract Solid-state and solution 117Sn nuclear magnetic resonance studies of C2O4(SnPh3)2 have been carried out and found to be in good agreement with the tetrahedral environment of the tin (IV) atom as found from the solid state structure, previously determined by a single crystal X-ray diffraction analysis.


1981 ◽  
Vol 46 (16) ◽  
pp. 3302-3305 ◽  
Author(s):  
Edmund J. Eisenbraun ◽  
Clinton E. Browne ◽  
Ernest L. Eliel ◽  
David L. Harris ◽  
Asadur Rahman ◽  
...  

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