Spin-Crossover Iron(II) Compounds with Pendent Tetraphenylethylene Group

Shi Hang Shi; Jie Sheng Hu; Jun Tao

doi:10.1002/ejic.202300103

Spin-Crossover Iron(II) Compounds with Pendent Tetraphenylethylene Group

Shi Hang Shi, Jie Sheng Hu, Jun Tao^*

^*Corresponding author for this work

School of Chemistry and Chemical Engineering

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

Two iron(II) compounds with the general formula of [Fe(phen-TPE)₂(NCX)₂] ⋅ Y (phen-TPE=3-(tetraphenylethylene)-1,10-phenanthroline; X=S and Y=2DMF for 1 ⋅ 2DMF; X=Se and Y=DMF for 2 ⋅ DMF) were synthesized and characterized by single-crystal X-ray crystallography and magnetic measurements. Both compounds exhibited thermal-induced complete one-step spin-crossover (SCO) behavior with the critical transition temperatures of 210 K and 260 K for 1 ⋅ 2DMF and 2 ⋅ DMF, respectively. The SCO behavior of these two isomorphic compounds depended significantly on robust intermolecular π⋅⋅⋅π interactions, NCX⁻ groups and solvent molecules.

Original language	English
Article number	e202300103
Journal	European Journal of Inorganic Chemistry
Volume	26
Issue number	20
DOIs	https://doi.org/10.1002/ejic.202300103
Publication status	Published - 13 Jul 2023

Keywords

Intermolecular interactions
Iron(II)
Spin crossover
Synthesis
Tetraphenylethylene

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title = "Spin-Crossover Iron(II) Compounds with Pendent Tetraphenylethylene Group",

abstract = "Two iron(II) compounds with the general formula of [Fe(phen-TPE)2(NCX)2] ⋅ Y (phen-TPE=3-(tetraphenylethylene)-1,10-phenanthroline; X=S and Y=2DMF for 1 ⋅ 2DMF; X=Se and Y=DMF for 2 ⋅ DMF) were synthesized and characterized by single-crystal X-ray crystallography and magnetic measurements. Both compounds exhibited thermal-induced complete one-step spin-crossover (SCO) behavior with the critical transition temperatures of 210 K and 260 K for 1 ⋅ 2DMF and 2 ⋅ DMF, respectively. The SCO behavior of these two isomorphic compounds depended significantly on robust intermolecular π⋅⋅⋅π interactions, NCX− groups and solvent molecules.",

keywords = "Intermolecular interactions, Iron(II), Spin crossover, Synthesis, Tetraphenylethylene",

author = "Shi, {Shi Hang} and Hu, {Jie Sheng} and Jun Tao",

note = "Publisher Copyright: {\textcopyright} 2023 Wiley-VCH GmbH.",

year = "2023",

month = jul,

day = "13",

doi = "10.1002/ejic.202300103",

language = "English",

volume = "26",

journal = "European Journal of Inorganic Chemistry",

issn = "1434-1948",

publisher = "Wiley-VCH Verlag",

number = "20",

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TY - JOUR

T1 - Spin-Crossover Iron(II) Compounds with Pendent Tetraphenylethylene Group

AU - Shi, Shi Hang

AU - Hu, Jie Sheng

AU - Tao, Jun

PY - 2023/7/13

Y1 - 2023/7/13

N2 - Two iron(II) compounds with the general formula of [Fe(phen-TPE)2(NCX)2] ⋅ Y (phen-TPE=3-(tetraphenylethylene)-1,10-phenanthroline; X=S and Y=2DMF for 1 ⋅ 2DMF; X=Se and Y=DMF for 2 ⋅ DMF) were synthesized and characterized by single-crystal X-ray crystallography and magnetic measurements. Both compounds exhibited thermal-induced complete one-step spin-crossover (SCO) behavior with the critical transition temperatures of 210 K and 260 K for 1 ⋅ 2DMF and 2 ⋅ DMF, respectively. The SCO behavior of these two isomorphic compounds depended significantly on robust intermolecular π⋅⋅⋅π interactions, NCX− groups and solvent molecules.

AB - Two iron(II) compounds with the general formula of [Fe(phen-TPE)2(NCX)2] ⋅ Y (phen-TPE=3-(tetraphenylethylene)-1,10-phenanthroline; X=S and Y=2DMF for 1 ⋅ 2DMF; X=Se and Y=DMF for 2 ⋅ DMF) were synthesized and characterized by single-crystal X-ray crystallography and magnetic measurements. Both compounds exhibited thermal-induced complete one-step spin-crossover (SCO) behavior with the critical transition temperatures of 210 K and 260 K for 1 ⋅ 2DMF and 2 ⋅ DMF, respectively. The SCO behavior of these two isomorphic compounds depended significantly on robust intermolecular π⋅⋅⋅π interactions, NCX− groups and solvent molecules.

KW - Intermolecular interactions

KW - Iron(II)

KW - Spin crossover

KW - Synthesis

KW - Tetraphenylethylene

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U2 - 10.1002/ejic.202300103

DO - 10.1002/ejic.202300103

M3 - Article

AN - SCOPUS:85159813977

SN - 1434-1948

VL - 26

JO - European Journal of Inorganic Chemistry

JF - European Journal of Inorganic Chemistry

IS - 20

M1 - e202300103

ER -

Spin-Crossover Iron(II) Compounds with Pendent Tetraphenylethylene Group

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Keywords

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