STRUCTURE OF N-(ORTHO-CARBOXYPHENYL)IMINODIACETIC ACID

C11H11NO6, M(r) = 253.0, monoclinic, C2/c, a = 28.146 (8), b = 6.063 (5), c = 13.820 (4) angstrom, beta = 99.51 (2)-degrees, V = 2325.61 angstrom 3 Z = 8, D(x) = 1.445, D(m) (flotation) = 1.442 g cm-3, lambda-(Mo K-alpha) = 0.7107 angstrom, mu = 1.24 cm-1, F(000) = 1056, T = 295 K, R = 0.0397 with unit weights for 1609 unique reflections. The phenyl group, two glycinato arms and one H atom are attached to the N atom in a zwitterionic configuration. The N-H group and the hydroxyl groups of the glycinato arms are involved in hydrogen bonding.