Jump to main content
Jump to site search

Issue 12, 2017
Previous Article Next Article

Four Salamo-type 3d–4f hetero-bimetallic [ZnIILnIII] complexes: syntheses, crystal structures, and luminescent and magnetic properties

Author affiliations

Abstract

Four hetero-bimetallic [ZnIILnIII] complexes with the general formula [Zn(L)(OAc)Ln(NO3)2] (Ln = Sm, Eu, Tb and Dy) were synthesized by the Salamo-type ligand H2L (6,6′-diethoxy-2,2′-[1,2-ethylenedioxybis(nitrilomethylidyne)]diphenol) with Zn(OAc)2·2H2O and Ln(NO3)3·6H2O (Ln = Sm, Eu, Tb and Dy), respectively. X-ray crystal diffraction analyses revealed that all the Zn(II) atoms were penta-coordinated, adopting distorted square pyramidal geometries, and the Ln(III) atoms were nona-coordinated, forming distorted tricapped trigonal prism geometries. In addition, three-dimensional supramolecular structures were assembled through intermolecular hydrogen-bond interactions. In the [ZnIILnIII] complexes, only [Zn(L)(OAc)Sm(NO3)2] showed obvious orange-red light emission under UV light due to the characteristic f–f transitions of Sm3+ ions, which meant that the ligand H2L could transfer energy from its excited state to the lowest excited state of the Sm3+ ion effectively. A decrease in the χMT value illustrated weak antiferromagnetic interaction exciting in the [Zn(L)(OAc)Tb(NO3)2] and [Zn(L)(OAc)Dy(NO3)2] complexes.

Graphical abstract: Four Salamo-type 3d–4f hetero-bimetallic [ZnIILnIII] complexes: syntheses, crystal structures, and luminescent and magnetic properties

Back to tab navigation

Supplementary files

Publication details

The article was received on 10 Jan 2017, accepted on 09 May 2017 and first published on 10 May 2017


Article type: Paper
DOI: 10.1039/C6NJ04090J
Citation: New J. Chem., 2017,41, 4966-4973
  •   Request permissions

    Four Salamo-type 3d–4f hetero-bimetallic [ZnIILnIII] complexes: syntheses, crystal structures, and luminescent and magnetic properties

    S. Zheng, W. Dong, Y. Zhang, L. Chen and Y. Ding, New J. Chem., 2017, 41, 4966
    DOI: 10.1039/C6NJ04090J

Search articles by author

Spotlight

Advertisements