The world's first wiki where authorship really matters (Nature Genetics, 2008). Due credit and reputation for authors. Imagine a global collaborative knowledge base for original thoughts. Search thousands of articles and collaborate with scientists around the globe.

wikigene or wiki gene protein drug chemical gene disease author authorship tracking collaborative publishing evolutionary knowledge reputation system wiki2.0 global collaboration genes proteins drugs chemicals diseases compound
Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Molecular structure and conformations of benzenesulfonamide: gas electron diffraction and quantum chemical calculations.

The molecular structure and conformational properties of benzenesulfonamide, C(6)H(5)SO(2)NH(2), were studied by gas electron diffraction (GED) and quantum chemical methods ( MP2 and B3LYP with different basis sets). The calculations predict the presence of two stable conformers with the NH(2) group eclipsing or staggering the SO(2) group. The eclipsed form is predicted to be favored by about 0.5 kcal/ mol. According to GED, the saturated vapor over solid benzenesulfonamide at a temperature of 150(5) degrees C consists of the eclipsed conformer. The GED intensities, however, possess a very low sensitivity toward the vapor composition, and contributions of the anti conformer of up to 75% (at the 0.05 level of significance) or up to 55% (at the 0.25 level of significance) cannot be excluded. The molecule possesses C(s)()(S) symmetry with the S-N bond perpendicular to the ring plane.[1]

References

  1. Molecular structure and conformations of benzenesulfonamide: gas electron diffraction and quantum chemical calculations. Petrov, V., Petrova, V., Girichev, G.V., Oberhammer, H., Giricheva, N.I., Ivanov, S. J. Org. Chem. (2006) [Pubmed]
 
WikiGenes - Universities