C
68
H
54
N
4
O
9
P
b
2
${\mathrm{C}}_{68}{\mathrm{H}}_{54}{\mathrm{N}}_{4}{\mathrm{O}}_{9}{\mathrm{P}\mathrm{b}}_{2}$
, monoclinic, C2/c (no. 15), a = 15.7286(14) Å, b = 16.3623(14) Å, c = 22.500(2) Å, β =
97.369
(
1
)
°
$97.369\left(1\right)^{\circ} $
, V = 5742.7(9)
Å
3
${\mathrm{\AA}}^{3}$
, Z = 4,
R
g
t
${R}_{gt}$
(F) = 0.0203, w
R
r
e
f
${R}_{ref}$
(
F
2
${F}^{2}$
) = 0.0488, T = 296(2) K.