Theoretical structural and vibrational properties of the artificial sweetener sucralose

Stabilities of aqueous solutions of sucrose containing ascorbic and citric acids by using FTIR spectroscopy and physicochemical studies

“…Table 6 Observed wavenumbers (cm -1 ) and assignments for ascorbic and citric acids and sucrose and the more concentrate mixture (model orange juice). in solution 4 it is observed only one of these bands [19]. For this acid, the most important result is the high stability of the four solutions with the dilution observing that the spectra at the 92nd day are practically the same than those recorded on the first day, as observed in Fig.…”

“…Nowadays, it is possible to identify the bands of each component in mixtures of ascorbic and citric acids and sucrose in water by combining the infrared spectrum together with studies simultaneous of their physicochemical properties with the storage time. Hence, in this work as part of our investigations on characterizations of spectroscopic compounds of industrial importance [17][18][19][20] we have considered the study, on one hand, of aqueous solutions of different concentrations of ascorbic acid, citric acid and sucrose and, on the other hand, of mixtures of those three components prepared taking into account the proportions reported in the literature for an orange fruit [10,11]. These mixtures of different concentrations of ascorbic acid, citric acid and sucrose constitute model orange juices.…”

Vibrational and structural study of onopordopicrin based on the FTIR spectrum and DFT calculations

“…On the other hand, the C-O stretching modes are predicted between 1177 and 886 cm À1 , hence, they are clearly assigned to the shoulders and overlapped bands in those region, as shown in Table 2. According to the values previously reported for molecules with similar rings [1][2][3][4][5][6]9,11,12,[37][38][39] and the values obtained from our theoretical results, the IR bands at 1199 and 1046 cm À1 are associated with some C-C stretching modes. The remaining skeletal modes are assigned according to the calculations, as shown in Table 2.…”

Chemical Reaction: Understanding the Key to the Formation of Carbonaceous Materials from Sucralose

“…It was already reported that the Raman spectrum of sucralose shows four strong characteristic bands at 1093, 1040, 1025, and 990 cm À 1 , and the three CÀ Cl stretching modes were designated as 755, 725, and 600 cm À 1 IR band. [47] To study the Raman spectroscopy data, Figure 5 shows the principal component score graph.…”