3 years ago

Synthesis, structure and single-molecule magnet characterization of Dy2 dinuclear complexes with an 8–hydroxyquinoline carbohydrazone ligand

Synthesis, structure and single-molecule magnet characterization of Dy2 dinuclear complexes with an 8–hydroxyquinoline carbohydrazone ligand
The employment of an 8-hydroxyquinoline carbohydrazone tetradentate ligand, 8-hydroxyquinoline-2-carboxaldehyde-(benzoyl)hydrazone (H 2 L), DyCl3·6H2O and Et3N has led to the formation of dinuclear Dy(III) complex [Dy2(HL)2Cl4(CH3OH)2], (1) and [Dy2(HL)2((PhO)2PO2)4]·2(CH3OH) (2) in the presence of excess amount of bridging diphenyl phosphate anion, (PhO)2PO2. X-ray crystallography data revealed that two DyIII atoms in 1 are doubly bridged by the two phenolato oxygen atoms of HL ligands, however, the DyIII atoms are bridged by additional two deprotonated μ 1,3-phosphate anions in 2. Each of the two lanthanide ions is eight-coordinated and is located in the different symmetry with triangular dodecahedron (D 2d) for DyIII in 1 and elongated triangular bipyramid (D 3h) for DyIII in 2. Dc magnetic susceptibility studies in the 2–300 K range reveal the weak antiferromagnetic interaction for 1 and 2. Both of them showed field-induced slow magnetic relaxation behavior with the Ueff for 1 of 46.0 K higher than 36.8 K for 2.

Publisher URL: www.sciencedirect.com/science

DOI: S1387700317304458

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.