Data

Robust and High Temperature Spin Crossover Controlled via the Self-Assembly of Chiral and Racemic Polymorphs in Triazolylimine [Fe2L3](BF4)4 Helicates

Western Sydney University
Flood, James ; Wallis, Matthew J ; Tadros, Joseph ; Nakashima, Yuto ; Aldrich-Wright, Janice R ; Lindoy, Leonard F. ; Hayami, Shinya ; Li, Feng
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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=info:doi10.1021/acs.inorgchem.5c00186&rft.title=Robust and High Temperature Spin Crossover Controlled via the Self-Assembly of Chiral and Racemic Polymorphs in Triazolylimine [Fe2L3](BF4)4 Helicates&rft.identifier=10.1021/acs.inorgchem.5c00186&rft.publisher=Figshare&rft.description=Three new chiral spin crossover (SCO) dinuclear triple helicates of type [Fe2L3]­(BF4)4 are reported exhibiting a robust magnetic behavior that is resistant to rapid changes in temperature, moisture and light. The selective formation of racemic aggregates upon crystallization of a solution of the respective racemic complexes was found to be associated with the helical torsion, intermetallic distance as well as the spatial arrangement of the enantiomers and anions. Torsional stress and particular hydrogen bonding interactions were related to the potential coiling and uncoiling mechanisms inherent to some helically chiral systems as well as to the efficacy of cooperativity transmission within the crystal lattice. These unique structural dynamics were correlated with the display of a chirality-dependent semiabrupt SCO profile observed for each enantiopure aggregate. This study highlights how the molecular shape as well as the crystal packing of helically chiral compounds can be altered to modulate the magnetic behavior toward a robust and high temperature SCO system. &rft.creator=Flood, James &rft.creator=Wallis, Matthew J &rft.creator=Tadros, Joseph &rft.creator=Nakashima, Yuto &rft.creator=Aldrich-Wright, Janice R &rft.creator=Lindoy, Leonard F. &rft.creator=Hayami, Shinya &rft.creator=Li, Feng &rft.date=2025&rft.relation=https://doi.org/10.1021/acs.inorgchem.5c00186&rft.coverage=&rft_rights=Copyright Western Sydney University&rft_rights=CC BY 4.0: Attribution 4.0 International http://creativecommons.org/licenses/by/4.0&rft_subject=Unique structural dynamics&rft_subject=Uncoiling mechanisms inherent&rft_subject=Magnetic behavior toward&rft_subject=Dinuclear triple helicates&rft_subject=Cooperativity transmission within&rft_subject=Respective racemic complexes&rft_subject=Helically chiral systems&rft_subject=Helically chiral compounds&rft_subject=Robust magnetic behavior&rft_subject=Revemic polymorphs&rft_subject=Torsional stress&rft_subject=Study Highlights&rft_subject=Spatial arrangement&rft_subject=Selective formation&rft_subject=Reported exhibiting&rft_subject=Rapid changes&rft_subject=Potential coiling&rft_subject=molecular shape&rft_subject=intermetallic distance&rft_subject=helical torsion&rft_subject=enantiopure aggregate&rft_subject=crystal packing&rft_subject=crystal lattice&rft_subject=Other environmental sciences not elsewhere classified&rft_subject=Other environmental sciences&rft_subject=ENVIRONMENTAL SCIENCES&rft_subject=Biochemistry and cell biology not elsewhere classified&rft_subject=Biochemistry and cell biology&rft_subject=BIOLOGICAL SCIENCES&rft_subject=Other physical sciences not elsewhere classified&rft_subject=Other physical sciences&rft_subject=PHYSICAL SCIENCES&rft_subject=Evolutionary biology not elsewhere classified&rft_subject=Evolutionary biology&rft_subject=Other chemical sciences not elsewhere classified&rft_subject=Other chemical sciences&rft_subject=CHEMICAL SCIENCES&rft.type=dataset&rft.language=English Access the data
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Three new chiral spin crossover (SCO) dinuclear triple helicates of type [Fe2L3]­(BF4)4 are reported exhibiting a robust magnetic behavior that is resistant to rapid changes in temperature, moisture and light. The selective formation of racemic aggregates upon crystallization of a solution of the respective racemic complexes was found to be associated with the helical torsion, intermetallic distance as well as the spatial arrangement of the enantiomers and anions. Torsional stress and particular hydrogen bonding interactions were related to the potential coiling and uncoiling mechanisms inherent to some helically chiral systems as well as to the efficacy of cooperativity transmission within the crystal lattice. These unique structural dynamics were correlated with the display of a chirality-dependent semiabrupt SCO profile observed for each enantiopure aggregate. This study highlights how the molecular shape as well as the crystal packing of helically chiral compounds can be altered to modulate the magnetic behavior toward a robust and high temperature SCO system.

Created: 2025-04-11

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Subjects
Biological Sciences | Biochemistry and Cell Biology | Biochemistry and Cell Biology Not Elsewhere Classified | Chemical Sciences | Cooperativity transmission within | Dinuclear triple helicates | Environmental Sciences | Evolutionary Biology | Evolutionary Biology Not Elsewhere Classified | Helically chiral compounds | Helically chiral systems | Magnetic behavior toward | Other Chemical Sciences | Other Chemical Sciences Not Elsewhere Classified | Other Environmental Sciences | Other Environmental Sciences Not Elsewhere Classified | Other Physical Sciences | Other Physical Sciences Not Elsewhere Classified | Physical Sciences | Potential coiling | Rapid changes | Reported exhibiting | Respective racemic complexes | Revemic polymorphs | Robust magnetic behavior | Selective formation | Spatial arrangement | Study Highlights | Torsional stress | Uncoiling mechanisms inherent | Unique structural dynamics | crystal lattice | crystal packing | enantiopure aggregate | helical torsion | intermetallic distance | molecular shape |

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ACN 633 798 857