Absorption Characteristics of Combination Medication of Realgar and Indigo Naturalis: In Vitro Transport across MDCK-MDR1 Cells and In Vivo Pharmacokinetics in Mice after Oral Administration

Figure 6

The geometry of complex of [As₄Indirubin] at the HF/6-31G, B3LYP/6-31G, and wB97XD/6-31+G levels of theory. (The above cradle type of actatomic ring is the geometry of α-As₄S₄; purple spheres represent As atoms and yellow spheres represent S atoms. The lower rings represent the geometry of indirubin; red spheres represent O atoms and blue spheres represent N atoms.)