title: A zinc-lithium complex of 4,7-bis(2-aminoethyl)-1,4,7-triazacyclononane-1-acetate.
abstract: The asymmetric unit of ([4,7-bis(2-aminoethyl)-1,4,7-triazacyclononan-1-yl]acetato)zinc(II) triaqua(mu-[4,7-bis(2-aminoethyl)-1,4,7-triazacyclononan-1-yl]acetato)lithium(I)zinc(II) chloride diperchlorate, [Zn(C(12)H(26)N(5)O(2))][LiZn(C(12)H(26)N(5)O(2))(H(2)O)(3)]Cl(ClO(4))(2), obtained from the reaction between the lithium salt of 4,7-bis(2-aminoethyl)-1,4,7-triazacyclononane-1-acetate and Zn(ClO(4))(2), contains two Zn(II) complexes in which each Zn(II) ion is six-coordinated by five N-atom donors and one O-atom donor from the ligand. One carboxylate O-atom donor is not involved in coordination to a Zn(II) atom, but coordinates to an Li+ ion, the tetrahedral geometry of Li+ being completed by three water molecules. The two complexes are linked via a hydrogen bond between a primary amine N-H group and the carboxylate-O atom not involved in coordination to a metal.
authors.affiliation: School of Chemistry, The University of Nottingham, University Park, Nottingham NG7 2RD, England. a.j.blake@nottingham.ac.uk
authors.forename: Alexander J
authors.initials: AJ
authors.lastname: Blake
authors.forename: Lorenzo
authors.initials: L
authors.lastname: Tei
authors.forename: Claire
authors.initials: C
authors.lastname: Wilson
authors.forename: Martin
authors.initials: M
authors.lastname: Schröder