Construction and NIR luminescent property of hetero-bimetallic Zn-Nd complexes from two chiral salen-type Schiff-base ligands

Wei Yu Bi, Xing Qiang Lü, Wen Li Chai, Ji Rong Song, Wai Yeung Wong, Wai Kwok Wong, Richard A. Jones

Research output: Journal article publicationJournal articleAcademic researchpeer-review

43 Citations (Scopus)

Abstract

Two new near-infrared (NIR) luminescent Zn-Nd complexes [ZnL1Nd(OAc)(NO3)2] (3) and [ZnL2Nd(DMF)2(NO3)3] (4) have been obtained with two salen-type Schiff-base ligands H2L1 and H2L2, (H2L1 = N,N′-bis(3-methoxysalicylidene)-(1s, 2s)-(-)1,2-dipheneylethylenediamine and H2L2 = N,N′-bis(3-methoxysalicylidene)-(s)-2,2-diamine-1,1′-binaphthyl) from the reaction of different chiral diamines with o-vanillin. The X-ray crystal structure analysis reveals that both of them crystallize in the chiral space groups with P2(1), a = 10.1669(6), b = 19.3775(11), c = 17.4639(10) Å, β = 94.8710(10)°, V = 3428.1(3) Å3, Z = 4 for 3, and C2, a = 22.1914(13), b = 9.7886(6), c = 22.0138(13) Å, β = 118.9590(10)°, V = 4372.5(4) Å3, Z = 4 for 4. Complexes 3-4 are both dinuclear Zn-Nd structures, while suitable choice of chiral Schiff-base ligands could induce the different complexions of ligands and metal ions, and the functional control of ligand character shows a potentially effective way to the fine-tuning properties of NIR luminescence from Nd ions.
Original languageEnglish
Pages (from-to)450-455
Number of pages6
JournalJournal of Molecular Structure
Volume891
Issue number1-3
DOIs
Publication statusPublished - 26 Nov 2008
Externally publishedYes

Keywords

  • Chiral salen-type Schiff-base ligand
  • Hetero-bimetallic complexes
  • Near-infrared luminescence

ASJC Scopus subject areas

  • Spectroscopy
  • Analytical Chemistry
  • Inorganic Chemistry
  • Organic Chemistry

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