Table 2. Selected geometric parameters (Å, °).

I7—C7	2.081 (10)	N9—C1′	1.439 (12)
C4—N9—C1′	123.7 (8)	O6—C6—N1	125.1 (8)
C1′—O4′—C4′	103.7 (7)	N5—C7—I7	126.9 (7)
N2—C2—N1	117.1 (9)	O5′—C5′—C4′	110.3 (8)
C4′—O4′—C1′—C2′	−41.3 (9)	C1′—O4′—C4′—C3′	47.8 (9)
C4—N9—C1′—O4′	−120.6 (9)	C2′—C3′—C4′—O4′	−34.8 (9)
O4′—C1′—C2′—C3′	18.1 (9)	C3′—C4′—C5′—O5′	−172.9 (8)
C1′—C2′—C3′—C4′	9.8 (10)