Near-infrared (NIR) luminescent homoleptic lanthanide Salen complexes Ln 4(Salen) 4 (Ln = Nd, Yb or Er)

Weixu Feng, Yao Zhang, Xingqiang Lü*, Yani Hui, Guoxiang Shi, Dan Zou, Jirong Song, Daidi Fan, Rick W K WONG, Richard A. Jones

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

48 Citations (Scopus)

Abstract

The series of homoleptic tetranuclear [Ln 4(L) 2(HL) 2(NO 3) 2(OH) 2] ·2(NO 3) (Ln = Nd, 1; Ln = Yb, 2; Ln = Er, 3; Ln = Gd, 4) have been self-assembled from the reaction of the Salen-type Schiff-base ligand H 2L with Ln(NO 3) 3·6H 2O (Ln = Nd, Yb, Er or Gd), respectively (H 2L: N,N′-bis(salicylidene) cyclohexane-1,2-diamine). The result of their photophysical properties shows that the strong and characteristic NIR luminescence for complexes 1 and 2 with emissive lifetimes in microsecond ranges are observed and the sensitization arises from the excited state (both 1LC and 3LC) of the Salen-type Schiff-base ligand with the flexible linker.

Original languageEnglish
Pages (from-to)3456-3463
Number of pages8
JournalCrystEngComm
Volume14
Issue number10
DOIs
Publication statusPublished - 21 May 2012

Scopus Subject Areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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