4.7 Article

Assembly Studies of Two Planar Dy4 Single-Molecule Magnets

期刊

CRYSTAL GROWTH & DESIGN
卷 22, 期 12, 页码 7461-7468

出版社

AMER CHEMICAL SOC
DOI: 10.1021/acs.cgd.2c01040

关键词

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资金

  1. National Natural Science Foundation of China
  2. Guangxi Natural Science Foundation of China
  3. Guangxi Tech-nology Base and Talent Subject
  4. Key Project of Guangxi Normal University
  5. Innovative Entrepreneurial Training Plan Program
  6. [12064002]
  7. [22061004]
  8. [21901050]
  9. [2018GXNSFDA281002]
  10. [2018GXNSFBA050031]
  11. [2020GXNSFAA159132]
  12. [AD20238043]
  13. [GUIKE AD19245002]
  14. [2018ZD003]
  15. [202210602236]

向作者/读者索取更多资源

Two tetranuclear Dy(III) complexes with different substitution groups and coordinated solvent molecules were synthesized and found to exhibit field-induced single-molecule magnet properties. The magnetic investigation revealed the tuning effect of coordinated solvent molecules and substitution groups on the single-molecule magnet performance. The assembling mechanisms of these complexes were elucidated through time-dependent high-resolution electrospray ionization mass spectrometry.
Two tetranuclear Dy(III) complexes formulated as [Dy-4(L-1)(2)(L ')(4)(EtOH)(2)(CH3CN)(2)(H2O)(2)]Cl-2 (1) and [Dy-4(HL2)(2)(L ')(4)(MeOH)(6)]Cl-2 center dot 3MeOH center dot 2CH(3)CN (2) were synthesized from the reactions of DyCl3 center dot 6H(2)O with the corresponding 2-hydroxy-1-naphthaldehyde Schiff bases under hydrothermal conditions (H3L1 = 2-methyl-2-((2 '-hydroxynaphthalen-1 '-yl)-methyleneamino)propanediol, HL ' = 2-hydroxy-1-naphthaldehyde, and H4L2 = 2-(hydroxymethyl)-2-((2 '-hydroxynaphthalen-1 '-yl)-methyleneamino)propanediol). The two Dy(III) complexes possess planar rhombus tetranuclear skeletons with different substitution groups on the Schiff base ligand. The magnetic investigation revealed field-induced single-molecule magnets for the two titled clusters. It suggests that both coordinated solvent molecules and substitution groups have a certain tuning effect on the single-molecule magnet performance. Their assembling processes were further investigated through time-dependent high-resolution electrospray ionization mass spectrometry, giving possible assembling mechanisms for the two titled single-molecule magnets.

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