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- Title
Self-Assembly of 3d-4f ZnII-LnIII (Ln = Ho and Er) Bis(salamo)-Based Complexes: Controlled Syntheses, Structures and Fluorescence Properties.
- Authors
Dong, Xiu-Yan; Zhao, Qing; Kang, Quan-Peng; Li, Xiao-Yan; Dong, Wen-Kui
- Abstract
Two new hetero-trinuclear 3d-4f complexes [Zn2(L)Ho(<italic>μ</italic>2-OAc)2(OAc)(MeOH)]·CH2Cl2 (<bold>1</bold>) and [Zn2(L)Er(<italic>μ</italic>2-OAc)2]OAc (<bold>2</bold>), derived from a bis(salamo)-based ligand H4L, were synthesized and characterized via elemental analyses, IR, UV–Vis, fluorescence spectra and X-ray crystallography. The X-ray crystal structure analyses demonstrated that two <italic>μ</italic>2-acetateanions bridge the ZnII and LnIII (Ln = Ho (<bold>1</bold>) and Er (<bold>2</bold>)) atoms in a <italic>μ</italic>2-fashion forming similar hetero-trinuclear structures, respectively. In complex <bold>1</bold>, one methanol molecule as coordinating solvent participates in the coordination, the two ZnII atoms are six- and five-coordinated and have geometries of slightly distorted tetragonal pyramid and octahedron, and the HoIII atom is nine-coordinated and has the geometry of a mono-capped square antiprism. In complex <bold>2</bold>, the two ZnII atoms both possess five-coordinated tetragonal pyramid geometries, and the ErIII atom is eight-coordinated with a square antiprism geometry. Furthermore, the fluorescence properties of complexes <bold>1</bold> and <bold>2</bold> were determined.
- Subjects
ZINC compounds synthesis; CRYSTAL structure research; MOLECULAR self-assembly
- Publication
Crystals (2073-4352), 2018, Vol 8, Issue 5, p230
- ISSN
2073-4352
- Publication type
Article
- DOI
10.3390/cryst8050230