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.

中文翻译：

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压力增加对异质自旋配合物结构和温度引起的磁性变化的影响

该研究涉及具有硝基氧自由基 LR（hfac 是六氟乙酰丙酮酸酯，LR 是 2-(1-R-1H-pyrazol-4-yl)-4,4,5）的异自旋配合物 Cu(hfac)2 晶体的结构重排,5-四甲基-4,5-二氢-1H-咪唑-3-氧化物-1-氧基，R 是 Et 或烯丙基）通过将压力传输介质中的压力从 10-4 GPa 增加到 ~1 GPa 诱导。外部压力增加到仅~0.03 GPa 导致在环境条件下观察到的这些异质自旋晶体的温度感应磁异常消失。