Effect of increasing pressure on the structure and temperature-induced changes in magnetic properties of heterospin complexes

G. V. Romanenko, G. A. Letyagin, K. Yu Maryunina, A. S. Bogomyakov, S. Nishihara, K. Inoue, V. I. Ovcharenko

Research output: Contribution to journalArticlepeer-review

Abstract

The study is concerned with structural rearrangements in the crystals of heterospin complexes Cu(hfac)2 with nitroxide radicals LR (hfac is hexafluoroacetylacetonate, LR is 2-(1-R-1H-pyrazol-4-yl)-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazole-3-oxide-1-oxyl, R is Et or Allyl) induced by increasing pressure from 10−4 to ∼1 GPa in the pressure-transmitting medium. An increase in the external pressure to only ∼0.03 GPa leads to the disappearance of the temperature-induced magnetic anomaly observed for these heterospin crystals under ambient conditions.

Original languageEnglish
Pages (from-to)1530-1536
Number of pages7
JournalRussian Chemical Bulletin
Volume69
Issue number8
DOIs
Publication statusPublished - 1 Aug 2020

Keywords

  • copper
  • crystal structure
  • hexafluoroacetylacetonate
  • magnetic properties
  • nitronyl nitroxide radicals
  • pressure
  • CELL

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