Detail publikace

Chiral Resolution of Spin-Crossover Active Iron(II) [2x2] Grid Complexes

SURYADEVARA, N. PAUSCH, A. MORENO-PINEDA, E. MIZUNO, A. BUERCK, J. BAKSI, A. HOCHDORFER, T. ŠALITROŠ, I. ULRICH, A.S. KAPPES, M.M. SCHUNEMANN, V. KLOPPER, W. RUBEN, M.

Originální název

Chiral Resolution of Spin-Crossover Active Iron(II) [2x2] Grid Complexes

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

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.

Klíčová slova

chirality; grid complexes; ion mobility; Mossbauer spectroscopy; spin-crossover

Autoři

SURYADEVARA, N.; PAUSCH, A.; MORENO-PINEDA, E.; MIZUNO, A.; BUERCK, J.; BAKSI, A.; HOCHDORFER, T.; ŠALITROŠ, I.; ULRICH, A.S.; KAPPES, M.M.; SCHUNEMANN, V.; KLOPPER, W.; RUBEN, M.

Vydáno

2. 11. 2021

Nakladatel

WILEY-V C H VERLAG GMBH

Místo

WEINHEIM

ISSN

1521-3765

Periodikum

Chemistry - A European Journal

Ročník

27

Číslo

61

Stát

Spolková republika Německo

Strany od

15171

Strany do

15179

Strany počet

9

URL

https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/chem.202101432

BibTex

@article{BUT173093,
  author="SURYADEVARA, N. and PAUSCH, A. and MORENO-PINEDA, E. and MIZUNO, A. and BUERCK, J. and BAKSI, A. and HOCHDORFER, T. and ŠALITROŠ, I. and ULRICH, A.S. and KAPPES, M.M. and SCHUNEMANN, V. and KLOPPER, W. and RUBEN, M.",
  title="Chiral Resolution of Spin-Crossover Active Iron(II) [2x2] Grid Complexes",
  journal="Chemistry - A European Journal",
  year="2021",
  volume="27",
  number="61",
  pages="15171--15179",
  doi="10.1002/chem.202101432",
  issn="1521-3765",
  url="https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/chem.202101432"
}