Pressure-Controlled Migration of Paramagnetic Centers in a Heterospin Crystal
A study of the single-crystal-to-single-crystal transformation induced by temperature variation for the chain polymer Cu(II) complex with nitronyl nitroxide showed that an increase in the hydrostatic pressure of up to ∼0.07 GPa completely changes the intracrystalline displacements of molecules rela...
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| Veröffentlicht in: | Inorganic chemistry 2019-07, Vol.58 (14), p.9187-9194 |
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| container_title | Inorganic chemistry |
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| creator | Ovcharenko, Victor Romanenko, Galina Polushkin, Alexey Letyagin, Gleb Bogomyakov, Artem Fedin, Matvey Maryunina, Kseniya Nishihara, Sadafumi Inoue, Katsuya Petrova, Marina Morozov, Vitaly Zueva, Ekaterina |
| description | A study of the single-crystal-to-single-crystal transformation induced by temperature variation for the chain polymer Cu(II) complex with nitronyl nitroxide showed that an increase in the hydrostatic pressure of up to ∼0.07 GPa completely changes the intracrystalline displacements of molecules relative to one another. This, in turn, significantly affects the interaction energy of the unpaired electrons of the paramagnetic centers and hence the form of the temperature dependence of the magnetic susceptibility χT. The cooling of crystals under normal conditions causes a rearrangement of the intrachain exchange clusters {>N–•O–Cu(II)–O•–N |
| doi_str_mv | 10.1021/acs.inorgchem.9b00815 |
| format | Article |
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This, in turn, significantly affects the interaction energy of the unpaired electrons of the paramagnetic centers and hence the form of the temperature dependence of the magnetic susceptibility χT. The cooling of crystals under normal conditions causes a rearrangement of the intrachain exchange clusters {>N–•O–Cu(II)–O•–N<} accompanied by a shortening of the distances between the paramagnetic centers. This changes the character of exchange interactions and generates multistage spin transitions. 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| title | Pressure-Controlled Migration of Paramagnetic Centers in a Heterospin Crystal |
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