Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | e202419242 |
| Fachzeitschrift | Angewandte Chemie - International Edition |
| Jahrgang | 64 |
| Ausgabenummer | 7 |
| Frühes Online-Datum | 26 Nov. 2024 |
| Publikationsstatus | Veröffentlicht - 10 Feb. 2025 |
Abstract
The bistability of multiple physical properties driven by external stimuli in a solid is a desired prerequisite for its application in memory devices with convenient data readout. We present a pathway for thermal bistability detectable in four physical properties: magnetic, light absorption, second-harmonic generation (SHG), and dielectric. We report a novel heterometallic (TBA){[FeII(phIN)4][ReV(CN)8]} ⋅ (phIN) (1) (TBA=tetrabutylammonium cation, phIN=phenyl isonicotinate) cyanido-bridged chain material. Owing to an appropriate {N6} coordination sphere of Fe(II) centers, 1 reveals a thermal spin crossover (SCO) effect which is complete and cooperative providing a distinct thermal hysteresis loop in magnetic measurements. Moreover, it exhibits simultaneous thermal bistability in (a) visible-light absorption due to the presence of efficient d-d electronic transitions in the low-spin (LS) state, (b) SHG activity as it crystallizes in a polar Cc space group due to the bulky substituent on phIN ligands, and (c) dielectric parameters, including dielectric constant, which can be correlated with subtle changes in polarity between LS and HS (high spin) phases. Thus, we present a remarkable thermally controlled hysteretic behavior in four physical functionalities realized by properly functionalizing an SCO-active coordination compound.
ASJC Scopus Sachgebiete
- Chemische Verfahrenstechnik (insg.)
- Katalyse
- Chemie (insg.)
- Allgemeine Chemie
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in: Angewandte Chemie - International Edition, Jahrgang 64, Nr. 7, e202419242, 10.02.2025.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Thermal Bistability of Magnetic Susceptibility, Light Absorption, Second Harmonic Generation, and Dielectric Properties in a Polar Spin-Crossover Iron–Rhenium Chain Material
AU - Charytanowicz, Tomasz
AU - Wang, Junhao
AU - Tokoro, Hiroko
AU - Tran, Kevin
AU - Renz, Franz
AU - Ohkoshi, Shin ichi
AU - Chorazy, Szymon
AU - Sieklucka, Barbara
N1 - Publisher Copyright: © 2024 Wiley-VCH GmbH.
PY - 2025/2/10
Y1 - 2025/2/10
N2 - The bistability of multiple physical properties driven by external stimuli in a solid is a desired prerequisite for its application in memory devices with convenient data readout. We present a pathway for thermal bistability detectable in four physical properties: magnetic, light absorption, second-harmonic generation (SHG), and dielectric. We report a novel heterometallic (TBA){[FeII(phIN)4][ReV(CN)8]} ⋅ (phIN) (1) (TBA=tetrabutylammonium cation, phIN=phenyl isonicotinate) cyanido-bridged chain material. Owing to an appropriate {N6} coordination sphere of Fe(II) centers, 1 reveals a thermal spin crossover (SCO) effect which is complete and cooperative providing a distinct thermal hysteresis loop in magnetic measurements. Moreover, it exhibits simultaneous thermal bistability in (a) visible-light absorption due to the presence of efficient d-d electronic transitions in the low-spin (LS) state, (b) SHG activity as it crystallizes in a polar Cc space group due to the bulky substituent on phIN ligands, and (c) dielectric parameters, including dielectric constant, which can be correlated with subtle changes in polarity between LS and HS (high spin) phases. Thus, we present a remarkable thermally controlled hysteretic behavior in four physical functionalities realized by properly functionalizing an SCO-active coordination compound.
AB - The bistability of multiple physical properties driven by external stimuli in a solid is a desired prerequisite for its application in memory devices with convenient data readout. We present a pathway for thermal bistability detectable in four physical properties: magnetic, light absorption, second-harmonic generation (SHG), and dielectric. We report a novel heterometallic (TBA){[FeII(phIN)4][ReV(CN)8]} ⋅ (phIN) (1) (TBA=tetrabutylammonium cation, phIN=phenyl isonicotinate) cyanido-bridged chain material. Owing to an appropriate {N6} coordination sphere of Fe(II) centers, 1 reveals a thermal spin crossover (SCO) effect which is complete and cooperative providing a distinct thermal hysteresis loop in magnetic measurements. Moreover, it exhibits simultaneous thermal bistability in (a) visible-light absorption due to the presence of efficient d-d electronic transitions in the low-spin (LS) state, (b) SHG activity as it crystallizes in a polar Cc space group due to the bulky substituent on phIN ligands, and (c) dielectric parameters, including dielectric constant, which can be correlated with subtle changes in polarity between LS and HS (high spin) phases. Thus, we present a remarkable thermally controlled hysteretic behavior in four physical functionalities realized by properly functionalizing an SCO-active coordination compound.
KW - Coordination Polymers
KW - Cyanides
KW - Iron
KW - Rhenium
KW - Spin Crossover
KW - Switchable Materials
UR - http://www.scopus.com/inward/record.url?scp=85211079852&partnerID=8YFLogxK
U2 - 10.1002/anie.202419242
DO - 10.1002/anie.202419242
M3 - Article
AN - SCOPUS:85211079852
VL - 64
JO - Angewandte Chemie - International Edition
JF - Angewandte Chemie - International Edition
SN - 1433-7851
IS - 7
M1 - e202419242
ER -