The title compound [2-dapp](2)[Zn(dmit)(2)] synthesized by, the direct reaction of [Et4N](2)[Zn(dmit)(2)] and [2-dapp]I crystallizes in monoclinic, space group P2(1)/c with a = 29.7436(6), b = 10.6266(3), c = 13.6161(4) Angstrom, beta = 93.116(1)degrees, V = 4297.3 Angstrom(3), Z = 4, D-c = 1.448 g/cm(3), mu = 1.091 mm(-1) and F(000) = 1936. The structure was refined by full-matrix least-squares methods to the final R = 0.075 and wR = 0.116, revealing the zinc-bis (dmit) anions interact strongly with the planar cation, 2-dapp(+), by the hydrogen bond C(l)-H(lC)S-...(7) (x, 3/2-y, -1/2+z).