Unknown

Dataset Information

0

Iron(II) Complexes of 2,6-Di[4-(ethylcarboxy)pyrazol-1-yl]pyridine with Reversible Guest-Modulated Spin-Crossover Behavior.

ABSTRACT: Three solvatomorphs of the iron(II) complex of 2,6-di[4-(ethylcarboxy)pyrazol-1-yl]pyridine (bpCOOEt2p) of formulas [Fe(bpCOOEt2p)2](ClO4)2·1.5MeNO2 (1), [Fe(bpCOOEt2p)2](ClO4)2·MeNO2 (2), and [Fe(bpCOOEt2p)2](ClO4)2·2MeNO2 (3) have been prepared and characterized. They show interesting spin-crossover (SCO) properties ranging from partial to complete thermal spin transitions and a light-induced excited spin-state trapping (LIESST) effect. In solvatomorph 2, a robust structure is formed with channels that enable the entrance or removal of solvent molecules by vapor diffusion without losing the crystallinity. Thus, solvent-exchanged samples [Fe(bpCOOEt2p)2](ClO4)2·MeNO2 (2·MeNO 2 ), [Fe(bpCOOEt2p)2](ClO4)2·MeCN (2·MeCN), [Fe(bpCOOEt2p)2](ClO4)2·0.5Me2CO (2·Me 2 CO), and [Fe(bpCOOEt2p)2](ClO4)2·MeCOOH (2·MeCOOH) were prepared by vapor diffusion of the solvents in a crystal of the compound previously heated to 400 K in a single-crystal to single-crystal (SCSC) fashion. Interestingly, this causes a change of spin state with a stabilization of the low-spin state in 2·Me 2 CO and the high-spin state in 2·MeCN. Therefore, the SCO properties of 2 can be tuned in a reversible way by exposure to different solvents.

SUBMITTER: Garcia-Lopez V 

PROVIDER: S-EPMC10080648 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature

Json Xml
altmetric image

Publications

Iron(II) Complexes of 2,6-Di[4-(ethylcarboxy)pyrazol-1-yl]pyridine with Reversible Guest-Modulated Spin-Crossover Behavior.

García-López Víctor V   El Jastimi Hanane El Mansour HEM   Juráková Jana J   Clemente-León Miguel M   Coronado Eugenio E  

Crystal growth & design 20230302 4

Three solvatomorphs of the iron(II) complex of 2,6-di[4-(ethylcarboxy)pyrazol-1-yl]pyridine (bpCOOEt<sub>2</sub>p) of formulas [Fe(bpCOOEt<sub>2</sub>p)<sub>2</sub>](ClO<sub>4</sub>)<sub>2</sub>·1.5MeNO<sub>2</sub> (<b>1</b>), [Fe(bpCOOEt<sub>2</sub>p)<sub>2</sub>](ClO<sub>4</sub>)<sub>2</sub>·MeNO<sub>2</sub> (<b>2</b>), and [Fe(bpCOOEt<sub>2</sub>p)<sub>2</sub>](ClO<sub>4</sub>)<sub>2</sub>·2MeNO<sub>2</sub> (<b>3</b>) have been prepared and characterized. They show interesting spin-crossover  ...[more]

Similar Datasets

Unknown Structural Insights into Hysteretic Spin-Crossover in a Set of Iron(II)-2,6-bis(1H-Pyrazol-1-yl)Pyridine) Complexes.
| S-EPMC9305185 | biostudies-literature
Unknown Spin-Crossover in Supramolecular Iron(II)-2,6-bis(1<i>H</i>-Pyrazol-1-yl)pyridine Complexes: Toward Spin-State Switchable Single-Molecule Junctions.
| S-EPMC9088905 | biostudies-literature
Unknown Confinement inside MOFs Enables Guest-Modulated Spin Crossover of Otherwise Low-Spin Coordination Cages.
| S-EPMC10466325 | biostudies-literature
Unknown Iron(II) Complexes of 4-(Alkyldisulfanyl)-2,6-di(pyrazolyl)pyridine Derivatives. Correlation of Spin-Crossover Cooperativity with Molecular Structure Following Single-Crystal-to-Single-Crystal Desolvation.
| S-EPMC9007408 | biostudies-literature
Unknown High-Temperature Spin Crossover in Iron(II) Complexes with 2,6-Bis(1<i>H</i>-imidazol-2-yl)pyridine.
| S-EPMC9415506 | biostudies-literature
Unknown Reversible quantitative guest sensing <i>via</i> spin crossover of an iron(ii) triazole.
| S-EPMC5477032 | biostudies-literature
Unknown Reversible guest-induced gate-opening with multiplex spin crossover responses in two-dimensional Hofmann clathrates.
| S-EPMC8162911 | biostudies-literature
Unknown Bis[2,6-bis-(3,5-dimethyl-1H-pyrazol-1-yl)pyridine]di-μ(3)-iodido-diiodidotetra-copper(I).
| S-EPMC3212142 | biostudies-literature
Unknown Host Spin-Crossover Thermodynamics Indicate Guest Fit.
| S-EPMC10098494 | biostudies-literature
Unknown Zn and Ni complexes of pyridine-2,6-di-carboxyl-ates: crystal field stabilization matters!
| S-EPMC6658973 | biostudies-literature