The vibrational spectra of N-Cl maleimide |
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Authors: | T Woldbaek P Klaboe CJ Nielsen |
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Institution: | Department of Chemistry, University of Oslo, Oslo 3 Norway;Chemical laboratory V, the H.C. Ørsted Institute, DK-2100 CopenhagenDenmark |
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Abstract: | The infrared spectra of N-Cl maleimide as a Nujol mull and dissolved in various solvents were recorded between 4000 and 30 cm?1. Raman spectra of the crystalline solid and saturated solution in CH3CN were recorded and semiquantitative polarization measurements were made.The fundamental frequencies have been tentatively assigned in terms of C2V symmetry, based upon Raman polarization data and analogies with the spectra of maleimide and maleic anhydride. A force field was derived by initially transferring force constants from maleimide. After small iterations a satisfactory correspondance was achieved between the observed and calculated in-plane modes whereas larger discrepancies remained for some of the out-of-plane vibrations. |
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