Synthesis, crystal structure, IR and Raman properties of 1,2-diacetamidocyclohexane and its complexes with ZnBr2 and HBr3 - Archive ouverte HAL
Article Dans Une Revue Journal of Molecular Structure Année : 2005

Synthesis, crystal structure, IR and Raman properties of 1,2-diacetamidocyclohexane and its complexes with ZnBr2 and HBr3

Résumé

X-ray crystallography, infrared absorption and Raman scattering were applied to study the influence of Zn(II) or H+ on the amidic bond. (R,R)-1,2-diacetamidocyclohexane (DAACH) was chosen as a conformationally strained chiral building block including two amide bonds; this model is hoped to be not too far from a peptide and gives easily crystalline complexes. Crystallographic structures of DAACH molecule (1), DAACH/ZnBr2 (2) and DAACH/HBr3 (3) complexes were studied. Complexation of Zn by DAACH is due to the hyperpolarization of the amidic bond. IR and Raman studies of 1-3 agree with the X-ray results. This could be a model in the study of metal/proteins interactions or acidic denaturation of polypeptides

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Dates et versions

hal-00122699 , version 1 (04-01-2007)

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A. Bekaert, P. Lemoine, B. Viossat, M. Jouan, P. Gemeiner, et al.. Synthesis, crystal structure, IR and Raman properties of 1,2-diacetamidocyclohexane and its complexes with ZnBr2 and HBr3. Journal of Molecular Structure, 2005, 738 (1-3), pp.39-44. ⟨10.1016/j.molstruc.2004.10.068⟩. ⟨hal-00122699⟩
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