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. 2018 Sep 5;23(9):2271. doi: 10.3390/molecules23092271

Table 2.

Dihedral rotation angle between the alloxazine/isoalloxazine core and the aromatic rings.

Alloxazine Isoalloxazine
# α1(pos7) α2(pos6) α3(pos7) α4(pos6)
8 34.4 36.6 49.5 32.7
9 31.5 31.7 54.5 18.5
10 14.3 19.6 31.0 15.3
11 17.7 27.2 88.6 2.1

α1,° dihedral rotation angle in the X position, α2,° dihedral rotational angle in the Y position.