Irreversible Magnetic Behaviour Caused by the Thermosalient Phenomenon in an Iron(III) Spin Crossover Complex

Frederico F. Martins, Abhinav Joseph, Hermínio P. Diogo, Manuel E. Minas da Piedade, Liliana P. Ferreira, Maria Deus Carvalho, Sónia Barroso, Maria João Romão, Maria José Calhorda, Paulo N. Martinho

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The new iron(III) complex [Fe(5-I-salEen)2]ClO4 exhibits both spin crossover, with hysteresis, between 304 K and 320 K (16 K hysteresis loop), and thermosalient phenomena. After a symmetry-breaking phase transition between 120 and 130 K, confirmed by single-crystal X-ray diffraction, and the fragmentation of the crystals around 312 K, confirmed by differential scanning calorimetry and hot stage microscopy, the hysteresis loop disappears. This is the first example where the explicitly reported thermosalient effect modifies the magnetic properties of a given spin crossover crystal.

Original languageEnglish
Pages (from-to)2976-2983
Number of pages8
JournalEuropean Journal of Inorganic Chemistry
Volume2018
Issue number25
DOIs
Publication statusPublished - 6 Jul 2018

Fingerprint

Hysteresis loops
Iron
Crystals
Hysteresis
Differential scanning calorimetry
Magnetic properties
Microscopic examination
Phase transitions
Single crystals
X ray diffraction
perchlorate

Keywords

  • Iron
  • Magnetic properties
  • Moving crystals
  • Schiff base ligands
  • Spin crossover
  • Thermosalient effect

Cite this

Martins, F. F., Joseph, A., Diogo, H. P., Minas da Piedade, M. E., Ferreira, L. P., Carvalho, M. D., ... Martinho, P. N. (2018). Irreversible Magnetic Behaviour Caused by the Thermosalient Phenomenon in an Iron(III) Spin Crossover Complex. European Journal of Inorganic Chemistry, 2018(25), 2976-2983. https://doi.org/10.1002/ejic.201800605
Martins, Frederico F. ; Joseph, Abhinav ; Diogo, Hermínio P. ; Minas da Piedade, Manuel E. ; Ferreira, Liliana P. ; Carvalho, Maria Deus ; Barroso, Sónia ; Romão, Maria João ; Calhorda, Maria José ; Martinho, Paulo N. / Irreversible Magnetic Behaviour Caused by the Thermosalient Phenomenon in an Iron(III) Spin Crossover Complex. In: European Journal of Inorganic Chemistry. 2018 ; Vol. 2018, No. 25. pp. 2976-2983.
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abstract = "The new iron(III) complex [Fe(5-I-salEen)2]ClO4 exhibits both spin crossover, with hysteresis, between 304 K and 320 K (16 K hysteresis loop), and thermosalient phenomena. After a symmetry-breaking phase transition between 120 and 130 K, confirmed by single-crystal X-ray diffraction, and the fragmentation of the crystals around 312 K, confirmed by differential scanning calorimetry and hot stage microscopy, the hysteresis loop disappears. This is the first example where the explicitly reported thermosalient effect modifies the magnetic properties of a given spin crossover crystal.",
keywords = "Iron, Magnetic properties, Moving crystals, Schiff base ligands, Spin crossover, Thermosalient effect",
author = "Martins, {Frederico F.} and Abhinav Joseph and Diogo, {Herm{\'i}nio P.} and {Minas da Piedade}, {Manuel E.} and Ferreira, {Liliana P.} and Carvalho, {Maria Deus} and S{\'o}nia Barroso and Rom{\~a}o, {Maria Jo{\~a}o} and Calhorda, {Maria Jos{\'e}} and Martinho, {Paulo N.}",
note = "Sem PDF conforme despacho. info:eu-repo/grantAgreement/FCT/5876/147264/PT# info:eu-repo/grantAgreement/FCT/5876/147216/PT# info:eu-repo/grantAgreement/FCT/5876/147256/PT# info:eu-repo/grantAgreement/FCT/SFRH/SFRH{\%}2FBD{\%}2F90386{\%}2F2012/PT#~ info:eu-repo/grantAgreement/FCT/SFRH/SFRH{\%}2FBPD{\%}2F73345{\%}2F2010/PT# This work was supported by Fundacao para a Ciencia e a Tecnologia (FCT), Portugal through projects UID/MULTI/00612/2013, UID/QUI/00100/2013, UID/MULTI/04046/2013 and PTDC/QEQ-QIN/3414/2014, and Grants SFRH/BD/90386/2012 (A. Joseph) and SFRH/BPD/73345/2010 (P. N. Martinho). The SCXR determinations were performed at Unidade de Ciencias Biomoleculares Aplicadas-UCIBIO financed by national funds from FCT/MEC (UID/Multi/04378/2013) and co-financed by ERDF under the PT2020 Partnership Agreement (POCI-01-0145-FEDER-007728). F. F. Martins and P. N. Martinho also gratefully acknowledge COST Actions CM1305 and CA15128.",
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Martins, FF, Joseph, A, Diogo, HP, Minas da Piedade, ME, Ferreira, LP, Carvalho, MD, Barroso, S, Romão, MJ, Calhorda, MJ & Martinho, PN 2018, 'Irreversible Magnetic Behaviour Caused by the Thermosalient Phenomenon in an Iron(III) Spin Crossover Complex', European Journal of Inorganic Chemistry, vol. 2018, no. 25, pp. 2976-2983. https://doi.org/10.1002/ejic.201800605

Irreversible Magnetic Behaviour Caused by the Thermosalient Phenomenon in an Iron(III) Spin Crossover Complex. / Martins, Frederico F.; Joseph, Abhinav; Diogo, Hermínio P.; Minas da Piedade, Manuel E.; Ferreira, Liliana P.; Carvalho, Maria Deus; Barroso, Sónia; Romão, Maria João; Calhorda, Maria José; Martinho, Paulo N.

In: European Journal of Inorganic Chemistry, Vol. 2018, No. 25, 06.07.2018, p. 2976-2983.

Research output: Contribution to journalArticle

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T1 - Irreversible Magnetic Behaviour Caused by the Thermosalient Phenomenon in an Iron(III) Spin Crossover Complex

AU - Martins, Frederico F.

AU - Joseph, Abhinav

AU - Diogo, Hermínio P.

AU - Minas da Piedade, Manuel E.

AU - Ferreira, Liliana P.

AU - Carvalho, Maria Deus

AU - Barroso, Sónia

AU - Romão, Maria João

AU - Calhorda, Maria José

AU - Martinho, Paulo N.

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PY - 2018/7/6

Y1 - 2018/7/6

N2 - The new iron(III) complex [Fe(5-I-salEen)2]ClO4 exhibits both spin crossover, with hysteresis, between 304 K and 320 K (16 K hysteresis loop), and thermosalient phenomena. After a symmetry-breaking phase transition between 120 and 130 K, confirmed by single-crystal X-ray diffraction, and the fragmentation of the crystals around 312 K, confirmed by differential scanning calorimetry and hot stage microscopy, the hysteresis loop disappears. This is the first example where the explicitly reported thermosalient effect modifies the magnetic properties of a given spin crossover crystal.

AB - The new iron(III) complex [Fe(5-I-salEen)2]ClO4 exhibits both spin crossover, with hysteresis, between 304 K and 320 K (16 K hysteresis loop), and thermosalient phenomena. After a symmetry-breaking phase transition between 120 and 130 K, confirmed by single-crystal X-ray diffraction, and the fragmentation of the crystals around 312 K, confirmed by differential scanning calorimetry and hot stage microscopy, the hysteresis loop disappears. This is the first example where the explicitly reported thermosalient effect modifies the magnetic properties of a given spin crossover crystal.

KW - Iron

KW - Magnetic properties

KW - Moving crystals

KW - Schiff base ligands

KW - Spin crossover

KW - Thermosalient effect

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U2 - 10.1002/ejic.201800605

DO - 10.1002/ejic.201800605

M3 - Article

VL - 2018

SP - 2976

EP - 2983

JO - European Journal of Inorganic Chemistry

JF - European Journal of Inorganic Chemistry

SN - 1434-1948

IS - 25

ER -