TY - JOUR

T1 - Effect of increasing pressure on the structure and temperature-induced changes in magnetic properties of heterospin complexes

AU - Romanenko, G. V.

AU - Letyagin, G. A.

AU - Maryunina, K. Yu

AU - Bogomyakov, A. S.

AU - Nishihara, S.

AU - Inoue, K.

AU - Ovcharenko, V. I.

PY - 2020/8/1

Y1 - 2020/8/1

N2 - 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.

AB - 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.

KW - copper

KW - crystal structure

KW - hexafluoroacetylacetonate

KW - magnetic properties

KW - nitronyl nitroxide radicals

KW - pressure

KW - CELL

UR - http://www.scopus.com/inward/record.url?scp=85091164948&partnerID=8YFLogxK

U2 - 10.1007/s11172-020-2932-2

DO - 10.1007/s11172-020-2932-2

M3 - Article

AN - SCOPUS:85091164948

VL - 69

SP - 1530

EP - 1536

JO - Russian Chemical Bulletin

JF - Russian Chemical Bulletin

SN - 1066-5285

IS - 8

ER -