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. 2020 Dec 19;25(24):6033. doi: 10.3390/molecules25246033

Figure 2.

Figure 2

The energy effect of the free rotation for the torsion angle (a) φ1 = N4–C3–C61–N(C)62 and (b) φ2 = C3–N4–C41–C42 calculated for C3, C7, and C10 using the semiempirical AM1 method.