A review on Fe-based spin crossover complexes with synergetic conductive and fluorescent properties

Qamar, Obaid Ali; Jamil, Farrukh; Hussain, Murid; Mustafa, Maria; Rehman, Rashid Ur; Inayat, Abrar; Habib, Muhammad Salman; Sajid, Muhammad

doi:10.1007/s11696-023-03017-6

Cited by 4 publications

(1 citation statement)

References 129 publications

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“…Spin-crossover (SCO) compounds, representative of bistable molecular materials, exhibit a discernible transition between high-spin (HS) and low-spin (LS) states in response to various external stimuli, including heat, [1,2] light, [3,4] pressure, [5,6] and applied electric fields. [7] This distinctive SCO phenomenon predominantly manifests in octahedral transition metal complexes characterized by 3d 4 -3d 7 electronic configurations. [8] The ensuing transition is accompanied by a myriad of alterations in the physical and chemical properties of these complexes.…”

Section: Introductionmentioning

confidence: 99%

Construction of Spin Crossover‐Fluorescent Bifunctional Cyclic Chain‐Like Fe(II) Compounds from Carbazole Ligands

Zhou,

Chen,

Liu

et al. 2024

Eur J Inorg Chem

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The incorporation of fluorescent properties into spin‐crossover (SCO) materials, aiming at controlling fluorescence via spin‐state transitions for applications in magneto‐optical switching and information processing, represents an appealing research direction. In this study, we prepared two examples of one‐dimensional cyclic chain‐like Fe(II) coordination polymers, denoted as [Fe(DPPC)2(NCS)2]⋅CH3OH⋅o‐C6H4Cl2 (1, DPPC = 3,6‐di‐4‐pyridinyl‐9‐[4‐(4‐pyridinyl)phenyl]‐9H‐carbazole) and [Fe(PDPC)2(NCS)2] (2, PDPC = 3,6‐di(pyridin‐4‐yl)‐9‐phenyl‐9H‐carbazole). Analyses through single‐crystal X‐ray studies and magnetic measurements validate the two‐step SCO behavior of 1 within the temperature range of 50~200 K. Additionally, when combined with temperature‐dependent fluorescence emission spectroscopy, the results demonstrate the coexistence of SCO and fluorescence in 1.

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Section: Introductionmentioning

confidence: 99%

Construction of Spin Crossover‐Fluorescent Bifunctional Cyclic Chain‐Like Fe(II) Compounds from Carbazole Ligands

Zhou,

Chen,

Liu

et al. 2024

Eur J Inorg Chem

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An Efficient Analytical Method for Determining Transition Temperatures in Core‐Shell Spin Crossover Nanoparticles Described by an Extended Ising‐Like Model

El Islam Belmouri,

Cazelles,

Linares

et al. 2024

Eur J Inorg Chem

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This contribution is dedicated to the analysis of the size and interaction parameters effects on the thermal properties of square‐shaped cross‐spin transition core‐shell nanoparticles. The present study is carried out by varying the shell size at fixed core size and vice versa. In this problem, the core and shell are active from the spin transition point of view, while having different properties in terms of ligand field (transition temperatures) and interactions. The resulting nanoparticle is described by an Ising‐type model including the three interaction parameters JCC, JSS and JCS coupling core‐core, shell‐shell and core‐shell sites, respectively. The thermodynamic investigations have been carried out in 3 different ways: (i) by Monte Carlo Entropic Sampling (MCES) for small size nanoparticles ([[EQUATION]]) (ii) by usual Monte Carlo Metropolis for higher dimensions (iii) by an analytical method deducing the equilibrium temperature of the system from the various local environments. We demonstrate that, as long as a clear plateau region occurs in the thermal‐dependence of the high‐spin fraction, an excellent agreement is obtained, allowing to predict analytically the evolution of the transition temperatures. The limitations of the method are discussed in the case of strong interference between the thermal dependences of the core and shell.

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Thermal and Light-Induced Spin Transitions in 3D Hofmann-type Frameworks Built on Nonlinear 3-Substituted Pyridine and Pyrimidine Pillaring Ligands

Orellana-Silla,

Turo-Cortés,

Meneses-Sánchez

et al. 2024

Inorg. Chem.

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A review on Fe-based spin crossover complexes with synergetic conductive and fluorescent properties

Cited by 4 publications

References 129 publications

Construction of Spin Crossover‐Fluorescent Bifunctional Cyclic Chain‐Like Fe(II) Compounds from Carbazole Ligands

Construction of Spin Crossover‐Fluorescent Bifunctional Cyclic Chain‐Like Fe(II) Compounds from Carbazole Ligands

An Efficient Analytical Method for Determining Transition Temperatures in Core‐Shell Spin Crossover Nanoparticles Described by an Extended Ising‐Like Model

Thermal and Light-Induced Spin Transitions in 3D Hofmann-type Frameworks Built on Nonlinear 3-Substituted Pyridine and Pyrimidine Pillaring Ligands

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