Acta Cryst. (2001). E57, o690-o691  [ doi:10.1107/S1600536801011047 ]

Tris(2-succinimidoethyl)amine hydrate (1/0.075)

A. J. Blake, D. M. J. Doble, W.-S. Li and M. Schröder

Abstract: The title compound, C₁₈H₂₄N₄O₆·0.075H₂O, (I), was prepared as part of a research programme to prepare and identify new tripodal ligands which exhibit instability at low pH, thereby releasing coordinated metal cations under such conditions. Each molecule lies on a crystallographic threefold axis with the three arms arranged in the form of a claw. Angles within the five-membered succinimide ring, where the r.m.s. deviation of the five atoms from the least-squares ring plane is only 0.004 Å, vary from 104.8 (3)° at a methylene C atom to 112.7 (3)° at the formally sp² N atom. The structure contains a partially occupied disordered water molecule, the source of which is presumably the water produced as a by-product of the synthetic reaction.

Online 13 July 2001

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