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|Type:||Artigo de periódico|
|Title:||Self-association And Stereochemistry Study Of (5r)-4-methyl-5-phenyl-1,3,4- Oxadiazinan-2-one|
|Abstract:||C10H12N2O2, Mr = 191.21, P21, a = 5.5771(7), b = 27.841(3), c = 6.906(1) A°, β = 111.937(9)°, Z = 4, R1 = 0.0462. The two independent molecules in the asymmetric unit are linked through two very strong quasi centrosymmetric hydrogen bonds. The oxadiazinone rings, of both molecules, show the pyramidal inversion at N-4 nitrogen, thus resulting in a C (R)N(S)-C(R)N(R) diastereomeric pair. The analysis of the IR N-H stretching band (in the solid and in carbon tetrachloride solution) and the 13C NMR experiment at low temperature are in agreement with the X-ray crystal structure. © by Oldenbourg Wissenschaftsverlag.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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