2020 Volume 36 Pages 47-48
The structure of 5-methoxyindirubin 3′-oxime was determined by a single-crystal X-ray diffraction method at 93.15 K. The compound was crystallized in a monoclinic system, and was characterized as thus: P21/c, a = 16.0352(4)Å, b = 5.55140(10)Å, c = 17.2061(4)Å, β = 100.324(3)°, Z = 4, and V = 1506.85(6)Å3. The crystal structure was solved by direct methods and refined by full-matrix least-squares on an F2 to final values of R1 = 0.0524 (I > 2σ(I)) and wR2 = 0.1411 (all data). 5-Methoxyindirubin 3′-oxime forms three hydrogen bonds intramolecularly and intermolecularly without intervening solvent molecules.
