Urothermal reactions of isophthalic acid (H(2)mbdc), 1,2,4-triazole (Htrz) with Zn(NO3)(2)center dot 6H(2)O produced a new compound, namely [Zn(mbdc)(0.)5(trz)](n)center dot n(e-urea) (1, H(2)mbdc = isophthalic acid, Htrz = 1,2,4-triazole, e-urea = ethyleneurea). The title compound crystallized in orthorhombic Pnma space group with a = 10.0327(6), b = 25.6510(12), c = 9.5121(8) angstrom, alpha = 90 degrees, beta = 90 degrees, gamma = 90 degrees, V D 2447.9(3) angstrom(3), C9H10N5O3Zn, M-r = 301.61, Z = 8, D-c = 1.637 g/cm(3), F(000) = 1612, mu = 2.015 mm(1), the final R = 0.071, and wR = 0.1895 for 2202 observed reflections (I > 2 sigma(I)). Single-crystal X-ray structural analysis reveals that compound 1 is a (3,4)connected 3D pillar-layered framework templated by e-urea molecules. Moreover, the thermal stability and luminescent property of 1 were also investigated in this work.