Abstract
C19H19N5O2, triclinic, P (1) over bar (no. 2), a = 6.6320(3) angstrom, b = 10.3272(5) angstrom, c = 13.0832(6) angstrom, alpha = 102.751(2)degrees, beta = 96.130(2)degrees, gamma = 103.079(2)degrees, V = 839.63(7) angstrom(3) , Z = 2, R-gt = 0.0553, wR(ref)(F-2) = 0.1521, T = 100(2) K.