Details
| Original language | English |
|---|---|
| Number of pages | 10 |
| Journal | European Journal of Inorganic Chemistry |
| Early online date | 30 Oct 2024 |
| Publication status | E-pub ahead of print - 30 Oct 2024 |
Abstract
The phenomenon which is called spin crossover is known to occur in some coordination compounds with an octahedral ligand field and electron configurations from 3d4 to 3d7. Thereby, a reversible transition between spin states (high spin and low spin state) is possible, through several external stimuli. Iron(II) triazole complexes exhibit this phenomenon at a wide range of temperatures depending on the ligands and anions used. For this reason, they are often considered for several possible practical applications. It is also possible to combine ligands or anions to modify the transition temperature. The latter of which was rarely discussed in the past. In this study we synthesized a series of iron(II)-4-Aminotriazole complexes, with different ratios of chloride- and tetrafluoroborate-anions, of the formula [Fe(Atrz)3]Cl2−X(BF4)X. We show that the combination of these anions leads to transition temperatures between those of their corresponding pure anion complexes. We furthermore present that a simple modification of the synthesis leads to a possible easy way of fine-tuning transitions temperatures.
Keywords
- Modification of properties, Molecular switches, Spin crossover, Spin transition, Triazole Complexes
ASJC Scopus subject areas
- Chemistry(all)
- Inorganic Chemistry
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In: European Journal of Inorganic Chemistry, 30.10.2024.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Modification of the Spin Transition Properties in Hetero-Anionic Iron(II)-Triazole Complexes
AU - Kilic, Maximilian Seydi
AU - Merchant, Isabel Mae
AU - Elliott, Erika
AU - Pawlak, Justus
AU - Brehme, Jules
AU - Sander, Arthur
AU - Suzuki, Taisei
AU - Shiga, Takuya
AU - Nihei, Masayuki
AU - Renz, Franz
N1 - Publisher Copyright: © 2024 The Author(s). European Journal of Inorganic Chemistry published by Wiley-VCH GmbH.
PY - 2024/10/30
Y1 - 2024/10/30
N2 - The phenomenon which is called spin crossover is known to occur in some coordination compounds with an octahedral ligand field and electron configurations from 3d4 to 3d7. Thereby, a reversible transition between spin states (high spin and low spin state) is possible, through several external stimuli. Iron(II) triazole complexes exhibit this phenomenon at a wide range of temperatures depending on the ligands and anions used. For this reason, they are often considered for several possible practical applications. It is also possible to combine ligands or anions to modify the transition temperature. The latter of which was rarely discussed in the past. In this study we synthesized a series of iron(II)-4-Aminotriazole complexes, with different ratios of chloride- and tetrafluoroborate-anions, of the formula [Fe(Atrz)3]Cl2−X(BF4)X. We show that the combination of these anions leads to transition temperatures between those of their corresponding pure anion complexes. We furthermore present that a simple modification of the synthesis leads to a possible easy way of fine-tuning transitions temperatures.
AB - The phenomenon which is called spin crossover is known to occur in some coordination compounds with an octahedral ligand field and electron configurations from 3d4 to 3d7. Thereby, a reversible transition between spin states (high spin and low spin state) is possible, through several external stimuli. Iron(II) triazole complexes exhibit this phenomenon at a wide range of temperatures depending on the ligands and anions used. For this reason, they are often considered for several possible practical applications. It is also possible to combine ligands or anions to modify the transition temperature. The latter of which was rarely discussed in the past. In this study we synthesized a series of iron(II)-4-Aminotriazole complexes, with different ratios of chloride- and tetrafluoroborate-anions, of the formula [Fe(Atrz)3]Cl2−X(BF4)X. We show that the combination of these anions leads to transition temperatures between those of their corresponding pure anion complexes. We furthermore present that a simple modification of the synthesis leads to a possible easy way of fine-tuning transitions temperatures.
KW - Modification of properties
KW - Molecular switches
KW - Spin crossover
KW - Spin transition
KW - Triazole Complexes
UR - http://www.scopus.com/inward/record.url?scp=85209112984&partnerID=8YFLogxK
U2 - 10.1002/ejic.202400474
DO - 10.1002/ejic.202400474
M3 - Article
AN - SCOPUS:85209112984
JO - European Journal of Inorganic Chemistry
JF - European Journal of Inorganic Chemistry
SN - 1434-1948
ER -