Synthesis and structure of a dimeric hydroxo-bridged erbium(III) complex, di-μ-hydroxo-bis[(1,4,7,10,13,16-hexaazacyclooctadecane) erbium(III)] tetra(trifloromethanesulfonate)

Rui Yao Wang, Jian Jun Zhao, Tian Zhu Jin*, Guang Xian Xu, Zhong Yuan Zhou, Xiang Ge Zhou

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


The title complex was synthesized by the reaction of 1,4,7,10,13,16-hexaazacyclooctadecane (abbreviated as hexacyclen) with erbium(III) trifloromethanesulfonate in 1:1 (molar ratio) in acetonitrile under nitrogen. The crystal structure determination shows that the complex is dinuclear with two erbium ions bridged by two hydroxide ions. Each of the two metal ions is coordinated similarly by the two bridging hydroxide groups and six nitrogen atoms of a hexacyclen molecule, giving a coordination number eight and a slightly distorted dodecahedron geometry. The four trifloromethanesulfonate ions are not included in the coordination of the metal ions.

Original languageEnglish
Pages (from-to)43-47
Number of pages5
Issue number1
Publication statusPublished - 1998
Externally publishedYes


  • 1,4,7,10,13,16-Hexaazacyclooctadecane
  • Crystal structure
  • Erbium
  • Lanthanide complex

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