Table 3. Selected bond distances (Å) and angles (°).

Distances (Å)		Angles (°)
C1–C2	1.381(3)	C2–C1–C8	120.46(19)
C1–C8	1.381(3)	C1–C2–C3	120.16(19)
C2–C3	1.383(3)	C4–C3–C2	119.54(19)
C3–C4	1.380(3)	C3–C4–C7	120.44(17)
C4–C7	1.386(2)	C3–C4–N1	119.50(17)
C4–N1	1.465(2)	C7–C4–N1	120.06(16)
N2–C7	1.459(2)	C8–C7–C4	119.85(17)
C7–C8	1.386(2)	C8–C7–N2	119.68(16)
P1–O3	1.4898(13)	C4–C7–N2	120.46(15)
P1–O2	1.5093(13)	C1–C8–C7	119.52(19)
P1–O1	1.5719(14)	O3–P1–O2	118.15(8)
P1–O4	1.5730(15)	O3–P1–O1	110.99(8)
P2–O8	1.4966(15)	O2–P1–O1	105.03(8)
P2–O6	1.5087(14)	O3–P1–O4	106.24(8)
P2–O5	1.5596(16)	O2–P1–O4	109.51(8)
P2–O7	1.5671(15)	O1–P1–O4	106.39(9)
		O8–P2–O7	116.89(9)
		O8–P2–O5	109.75(10)
		O6–P2–O5	109.51(8)
		O8–P2–O7	108.82(9)
		O6–P2–O7	106.28(9)
		O5–P2–O7	104.86(9)