C24.667H22N2O5 . 0.333, orthorhombic, P2(1)2(1)2(1) (no. 19), a = 8.1960(1) Å, b = 17.8300(4) A, c = 41-908(1) Å, V = 6124.2 Å(3), Z = 12, R-gt(F) = 0.066, wR(ref)(F) = 0.073, T = 150 K.