Solution-State Spin Crossover in a Family of [Fe(L)<sub>2</sub>(CH<sub>3</sub>CN)<sub>2</sub>](BF<sub>4</sub>)<sub>2</sub> Complexes
We report herein on five new Fe(II) complexes of general formula [Fe(L)<sub>2</sub>(NCCH<sub>3</sub>)<sub>2</sub>](BF<sub>4</sub>)<sub>2</sub>•<i>x</i>CH<sub>3</sub>CN (L = substituted 2-pyridylimine-based...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-04-01
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| Series: | Magnetochemistry |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2312-7481/5/2/22 |
| _version_ | 1819120298367123456 |
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| author | Benjamin H. Wilson Hayley S. Scott Rosanna J. Archer Corine Mathonière Rodolphe Clérac Paul E. Kruger |
| author_facet | Benjamin H. Wilson Hayley S. Scott Rosanna J. Archer Corine Mathonière Rodolphe Clérac Paul E. Kruger |
| author_sort | Benjamin H. Wilson |
| collection | DOAJ |
| description | We report herein on five new Fe(II) complexes of general formula [Fe(L)<sub>2</sub>(NCCH<sub>3</sub>)<sub>2</sub>](BF<sub>4</sub>)<sub>2</sub>•<i>x</i>CH<sub>3</sub>CN (L = substituted 2-pyridylimine-based ligands). The influence of proximally located electron withdrawing groups (e.g., NO<sub>2</sub>, CN, CF<sub>3</sub>, Cl, Br) bound to coordinated pyridylimine ligands has been studied for the effect on spin crossover in their Fe(II) complexes. Variable-temperature UV-visible spectroscopic studies performed on complexes with more strongly electronegative ligand substituents revealed spin crossover (SCO) in the solution, and thermodynamic parameters associated with the spin crossover were estimated. |
| first_indexed | 2024-12-22T06:18:26Z |
| format | Article |
| id | doaj.art-5f05518c130045e48aa30e95cd58b4c8 |
| institution | Directory Open Access Journal |
| issn | 2312-7481 |
| language | English |
| last_indexed | 2024-12-22T06:18:26Z |
| publishDate | 2019-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Magnetochemistry |
| spelling | doaj.art-5f05518c130045e48aa30e95cd58b4c82022-12-21T18:36:01ZengMDPI AGMagnetochemistry2312-74812019-04-01522210.3390/magnetochemistry5020022magnetochemistry5020022Solution-State Spin Crossover in a Family of [Fe(L)<sub>2</sub>(CH<sub>3</sub>CN)<sub>2</sub>](BF<sub>4</sub>)<sub>2</sub> ComplexesBenjamin H. Wilson0Hayley S. Scott1Rosanna J. Archer2Corine Mathonière3Rodolphe Clérac4Paul E. Kruger5MacDiarmid Institute, School of Physical and Chemical Science, University of Canterbury, Private Bag 4800, Christchurch 8041, New ZealandMacDiarmid Institute, School of Physical and Chemical Science, University of Canterbury, Private Bag 4800, Christchurch 8041, New ZealandMacDiarmid Institute, School of Physical and Chemical Science, University of Canterbury, Private Bag 4800, Christchurch 8041, New ZealandCNRS, ICMCB, UMR 5026, F-33600 Pessac, FranceCNRS, CRPP, UMR 5031, F-33600 Pessac, FranceMacDiarmid Institute, School of Physical and Chemical Science, University of Canterbury, Private Bag 4800, Christchurch 8041, New ZealandWe report herein on five new Fe(II) complexes of general formula [Fe(L)<sub>2</sub>(NCCH<sub>3</sub>)<sub>2</sub>](BF<sub>4</sub>)<sub>2</sub>•<i>x</i>CH<sub>3</sub>CN (L = substituted 2-pyridylimine-based ligands). The influence of proximally located electron withdrawing groups (e.g., NO<sub>2</sub>, CN, CF<sub>3</sub>, Cl, Br) bound to coordinated pyridylimine ligands has been studied for the effect on spin crossover in their Fe(II) complexes. Variable-temperature UV-visible spectroscopic studies performed on complexes with more strongly electronegative ligand substituents revealed spin crossover (SCO) in the solution, and thermodynamic parameters associated with the spin crossover were estimated.https://www.mdpi.com/2312-7481/5/2/22spin crossoverFe(II)supramolecular chemistrysolution-state SCOmolecular magnetismcrystallography |
| spellingShingle | Benjamin H. Wilson Hayley S. Scott Rosanna J. Archer Corine Mathonière Rodolphe Clérac Paul E. Kruger Solution-State Spin Crossover in a Family of [Fe(L)<sub>2</sub>(CH<sub>3</sub>CN)<sub>2</sub>](BF<sub>4</sub>)<sub>2</sub> Complexes Magnetochemistry spin crossover Fe(II) supramolecular chemistry solution-state SCO molecular magnetism crystallography |
| title | Solution-State Spin Crossover in a Family of [Fe(L)<sub>2</sub>(CH<sub>3</sub>CN)<sub>2</sub>](BF<sub>4</sub>)<sub>2</sub> Complexes |
| title_full | Solution-State Spin Crossover in a Family of [Fe(L)<sub>2</sub>(CH<sub>3</sub>CN)<sub>2</sub>](BF<sub>4</sub>)<sub>2</sub> Complexes |
| title_fullStr | Solution-State Spin Crossover in a Family of [Fe(L)<sub>2</sub>(CH<sub>3</sub>CN)<sub>2</sub>](BF<sub>4</sub>)<sub>2</sub> Complexes |
| title_full_unstemmed | Solution-State Spin Crossover in a Family of [Fe(L)<sub>2</sub>(CH<sub>3</sub>CN)<sub>2</sub>](BF<sub>4</sub>)<sub>2</sub> Complexes |
| title_short | Solution-State Spin Crossover in a Family of [Fe(L)<sub>2</sub>(CH<sub>3</sub>CN)<sub>2</sub>](BF<sub>4</sub>)<sub>2</sub> Complexes |
| title_sort | solution state spin crossover in a family of fe l sub 2 sub ch sub 3 sub cn sub 2 sub bf sub 4 sub sub 2 sub complexes |
| topic | spin crossover Fe(II) supramolecular chemistry solution-state SCO molecular magnetism crystallography |
| url | https://www.mdpi.com/2312-7481/5/2/22 |
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