Extra bands assignments

Our earlier suggestion that the extra bands in this spectral region were overtones is thus confirmed and this allows us to assign the intensity about 1000 cm to the second overtone, (3<—0) at 1035 (=3x345). 

Fig. 16. (a) Extra-framework cation sites in X- and Y-type zeolites, (b) Far- infrared spectrum of Na-Y with band assignments to cation sites according to [232]. (c) Experimental IR spectrum in comparison to simulated spectra calculated according to the shell model and occupancy of different cation sites, (d) Experimental spectrum in comparison to power spectra simulated by MD at occupancy of different cation sites (parts c and d from [79] with permission)... 

Metalloporphyrins containing low valent main group elements show hyper-type UV-visible spectra and the corresponding higher valent complexes show normal spectra. Despite this, the phosphorus complexes [P(OEP)R2] show spectra with distinctly hyper character, with two extra Soret bands apparent. The extra Soret band in hyper complexes has been assigned to charge transfer from the low... 

Figure 2 shows the proton NMR spectrum of PM. The band at 6.1 ppm is from proton d. The big peak near 4 ppm arises from the two amino groups. The resonance corresponding to the CHg group appears at 3.3 ppm. The sharp peak at 1.8 ppm is assigned to the methyl group. The extra peaks at 5.8 and 2.2 ppm could arise from diaminoacridine residues in the polymer ... 

Sasikala et al. [16] used NMR, MS, and FTIR to characterize ezetimibe as s)mthesized from oxazolidinone. Moreover, and NMR assays were used to determine impurity-I in samples of ezetimibe. According to the results obtained, NMR spectral data of impurity-I have additional NMR bands at 2.74 and 9.82 ppm. The signal at 9.82 ppm was not observed on ezetimibe and was assigned to the -NH group. Further analysis confirmed that impurity-I has an extra -CH2 group at 38.61 ppm when compared to ezetimibe. To confirm the difference between impurity-I and ezetimibe, a correlation study and a... 

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