Chiral Resolution of Spin-Crossover Active Iron(II) [2x2] Grid Complexes
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F21%3APU142037" target="_blank" >RIV/00216305:26620/21:PU142037 - isvavai.cz</a>
Alternative codes found
RIV/61989592:15310/21:73609441
Result on the web
<a href="https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/chem.202101432" target="_blank" >https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/chem.202101432</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/chem.202101432" target="_blank" >10.1002/chem.202101432</a>
Alternative languages
Result language
angličtina
Original language name
Chiral Resolution of Spin-Crossover Active Iron(II) [2x2] Grid Complexes
Original language description
Chiral magnetic materials are proposed for applications in second-order non-linear optics, magneto-chiral dichroism, among others. Recently, we have reported a set of tetra-nuclear Fe(II) grid complex conformers with general formula C/S-[Fe4L4](8+) (L: 2,6-bis(6-(pyrazol-1-yl)pyridin-2-yl)-1,5-dihydrobenzo[1,2-d : 4,5-d ']diimidazole). In the grid complexes, isomerism emerges from tautomerism and conformational isomerism of the ligand L, and the S-type grid complex is chiral, which originates from different non-centrosymmetric spatial organization of the trans type ligand around the Fe(II) center. However, the selective preparation of an enantiomerically pure grid complex in a controlled manner is difficult due to spontaneous self-assembly. To achieve the pre-synthesis programmable resolution of Fe(II) grid complexes, we designed and synthesized two novel intrinsically chiral ligands by appending chiral moieties to the parent ligand. The complexation of these chiral ligands with Fe(II) salt resulted in the formation of enantiomerically pure Fe(II) grid complexes, as unambiguously elucidated by CD and XRD studies. The enantiomeric complexes exhibited similar gradual and half-complete thermal and photo-induced SCO characteristics. The good agreement between the experimentally obtained and calculated CD spectra further supports the enantiomeric purity of the complexes and even the magnetic studies. The chiral resolution of Fe(II)- [2x2] grid complexes reported in this study, for the first time, might enable the fabrication of magneto-chiral molecular devices.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10400 - Chemical sciences
Result continuities
Project
<a href="/en/project/LQ1601" target="_blank" >LQ1601: CEITEC 2020</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Chemistry - A European Journal
ISSN
0947-6539
e-ISSN
1521-3765
Volume of the periodical
27
Issue of the periodical within the volume
61
Country of publishing house
DE - GERMANY
Number of pages
9
Pages from-to
15171-15179
UT code for WoS article
000674843000001
EID of the result in the Scopus database
2-s2.0-85110620644