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. 2024 Jun 4;14:12825. doi: 10.1038/s41598-024-63552-4

Figure 2.

Figure 2

500 MHz 1H NMR spectra of sample B (a) and sample A (b) dissolved in DMSO-d6. The red inset shown in the middle of the spectrum represents N–H protons. The spectra were recorded at a temperature of 298 K. 1H–15N HSQC 2D NMR correlations for sample B (c) and for sample A (d). Samples were dissolved in DMSO-d6. Symbol S (d) represents sample with symmetrical geometry, symbol U represents unsymmetrical sample.