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2D and 3D networks of lanthanide with mixed dicarboxylate ligands: Syntheses, crystal structures and photoluminescent properties

  • Qing Feng Yang
  • , Yang Yu
  • , Tian You Song
  • , Jie Hui Yu
  • , Xiao Zhang
  • , Ji Qing Xu*
  • , Tie Gang Wang
  • *Corresponding author for this work
  • College of Chemistry

Research output: Contribution to journalArticlepeer-review

Abstract

A series of lanthanide complexes with mixed polycarboxylate ligands, [Ln2(op)2(ox)(H2O)4] n·nH2O (Ln = Ce, Pr, Nd, Sm, Eu and Gd for 1-6, respectively), [KLn(pma)1/2(ox)(H2O)]n (Ln = Tb (7) and Dy (8)), [KLn2(mp)3(ox)1/2(H 2O)3]n (Ln = Ce(9) and Pr(10)) (op = o-phthalate, ox = oxalate, pma = pyromellitate and mp = m-phthalate), have been prepared, and their photoluminescent properties have been investigated. Compounds 1-6 show (3,4)-connected 2D network structures consisting of {Ln(op)}n staircase chains bridged by ox ligands. Compounds 7 and 8 consist of 1D zigzag {Dy(ox)}n chains linked by pma ligands adopting a new μ4-hexadentate coordination mode to form 2D 6-connected networks with (36·46·53) topology. Through K⋯O interactions, the 2D networks are further connected to construct 3D structures. Compounds 9 and 10 display inorganic-organic 3D topology networks with the Schläfli symbol (3·43· 52)(32·410·59· 614·7)(42·5) containing mixed (3,4,9)-connected nodes.

Original languageEnglish
Pages (from-to)1642-1649
Number of pages8
JournalCrystEngComm
Volume11
Issue number8
DOIs
StatePublished - 2009

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