Effect of Methoxy Ligand-Substituent and NCE Coligands in Tuning T1/2 of Coordinatively Elastic Fe(II) Spin Crossover Complexes

Sundaresan S, Kiehl J, Carrella LM, Rentschler E (2023)

Publication Type: Journal article

Publication year: 2023

Journal

Crystal Growth and Design American Chemical Society

Book Volume: 23

Pages Range: 1648-1655

Journal Issue: 3

DOI: 10.1021/acs.cgd.2c01254

Abstract

We report the multistep synthesis of a thiadiazole based ligand (L^OMe-Nap) with a methoxy substituent in the six-position of the naphthalene ring, along with the corresponding iron(II) [Fe^II(L^OMe-Nap)2(NCE)2] 1-3 (E = S, Se, and BH3) complexes. We also report the synthesis of the [Fe^II(L^Nap)2(NCBH3)2] (4) complex with the previously reported L^Nap ligand. The complexes obtained were characterized by single crystal X-ray crystallography and SQUID magnetometry in all four cases (1-4). Complex 1 shows a weak thermally induced excited spin state trapping (TIESST) effect up to about 60 K. The effects of the methoxy ligand substituent in altering the noncovalent intramolecular π-π interaction are discussed, as well as the tuning of the switching temperature (T1/2) by the choice of NCE. The S < Se < BH3 series is established in both families of compounds.

Involved external institutions

Johannes Gutenberg-Universität Mainz (JGU)

Germany (DE)

How to cite

APA:

Sundaresan, S., Kiehl, J., Carrella, L.M., & Rentschler, E. (2023). Effect of Methoxy Ligand-Substituent and NCE Coligands in Tuning T1/2 of Coordinatively Elastic Fe(II) Spin Crossover Complexes. Crystal Growth and Design, 23(3), 1648-1655. https://doi.org/10.1021/acs.cgd.2c01254

MLA:

Sundaresan, Sriram, et al. "Effect of Methoxy Ligand-Substituent and NCE Coligands in Tuning T1/2 of Coordinatively Elastic Fe(II) Spin Crossover Complexes." Crystal Growth and Design 23.3 (2023): 1648-1655.

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