Investigations on the Spin States of Two Mononuclear Iron(II) Complexes Based on N-Donor Tridentate Schiff Base Ligands Derived from Pyridine-2,6-Dicarboxaldehyde

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F22%3A10446164" target="_blank" >RIV/00216208:11310/22:10446164 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=9hqKTlSgWP" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=9hqKTlSgWP</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/inorganics10070098" target="_blank" >10.3390/inorganics10070098</a>

Result language
angličtina
Original language name
Investigations on the Spin States of Two Mononuclear Iron(II) Complexes Based on N-Donor Tridentate Schiff Base Ligands Derived from Pyridine-2,6-Dicarboxaldehyde
Original language description
Iron(II)-Schiff base complexes are a well-studied class of spin-crossover (SCO) active species due to their ability to interconvert between a paramagnetic high spin-state [HS, S = 2, (5)T(2)] and a diamagnetic low spin-state [LS, S = 0, (1)A(1)] by external stimuli under an appropriate ligand field. We have synthesized two mononuclear Fe(II) complexes, viz., [Fe(L1)(2)](ClO4)(2).CH3OH {1} and [Fe(L2)(2)](ClO4)(2).2CH(3)CN {2}, from two N(6)-coordinating tridentate Schiff bases derived from 2,6-bis[(benzylimino)methyl]pyridine. The complexes have been characterized by elemental analysis, electrospray ionization-mass spectrometry (ESI-MS), Fourier-transform infrared spectroscopy (FTIR), solution state nuclear magnetic resonance spectroscopy, (1)H and (13)C NMR (both theoretically and experimentally), single-crystal diffraction and magnetic susceptibility studies. The structural, spectroscopic and magnetic investigations revealed that 1 and 2 are with Fe-N(6) distorted octahedral coordination geometry and remain locked in LS state throughout the measured temperature range from 5-350 K.
Czech name
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Czech description
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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
10402 - Inorganic and nuclear chemistry

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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