Crystal structure of diaqua(μ2-triethyl-enetetraminehexaacetato) dizinc tetra-hydrate

Huan Liu, Li Ping Lu*, William Thomas Alexander Harrison

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


The reaction of ZnO and triethylenetetraminehexaacetic acid (H6TTHA) in aqueous solution after refluxing yields the binuclear title compound, [Zn2(C18H26N4O12)(H2O)2]·4H2O. There is a centre of symmetry in the [Zn2(H2TTHA)(H2O)2] molecule in the crystalline state. Both ZnII ions are octahedrally surrounded and bound by an N2O3 donor set from the H2TTHA4- anion and a water molecule; the N atoms are cis and the water molecule is trans to an N atom. The Zn⋯Zn separation is 7.562 (1) Å. An intramolecular C - H⋯O interaction is observed and both carboxylate H atoms are disordered over two adjacent sites. In the crystal, the components are linked by O - H⋯O and C - H⋯O hydrogen bonds generating a three-dimensonal network.

Original languageEnglish
Pages (from-to)m55-m56
Number of pages2
JournalActa Crystallographica Section E: Structure Reports Online
Issue number3
Publication statusPublished - 1 Mar 2015


  • Binuclear Zn<sup>II</sup> complex
  • Crystal structure
  • Triethylenetetraminehexaacetic acid


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