Crystal structure of 2,2′-diamino-[1,1′-biphenyl]-4,4′-dicarboxylic acid dihydrate, C14H16N2O6

C 14 H 16 N 2 O 6 , triclinic, P1 (no. 2), a = 10.0254(5) A, b = 11.2726(6) A, c = 13.4494(7) A, α = 111.535(2)°, β = 92.068(2)°, γ = 102.644(2)°, V = 1368.16(13) A 3 , Z = 4, R gt (F) = 0.047, wR ref (F 2 ) = 0.133, T = 150 K.