Storing Spin-Crossover and LC Phase Transitions Information by Hybridizing Spin-Crossover Complexes with a Thermotropic Polymer Matrix – A Novel Case of Multiple Switching

Jeong, Seong Hoon; Kim, Kyu Nam; Kang, Jun Sung; Hong, Chang Seop; Choi, Dong Hoon; Jin, Jung Il; Park, Il Woo; Kim, Min

doi:10.1080/15421400701544422

Cited by 6 publications

(4 citation statements)

References 16 publications

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“…Later, the same authors mixed [Fe(ODT)3](OTs)2 or [Fe(HET)3](OTs)2 (ODT = 4-octadecyl-1,2,4-triazole, HET = 4-(2hydroxyethyl)-1,2,4-triazole, OTs = p-toluenesulfonate ) with the liquid crystalline polymer poly(oxetane) (POx) in an effort to combine both magnetic and liquid crystal transitions in a multifunctional material. [23] Following vacuum drying of the THF solutions of the materials, they obtained composites where the temperatures of the different transitions (glass transition, spin transition and isotropisation) were lowered in comparison to the bulk materials. However, no interplay between these phenomena was reported.…”

Section: Composites Prepared From Solution 211 Solution Castingmentioning

confidence: 99%

Spin crossover polymer composites, polymers and related soft materials

Enríquez-Cabrera

Rapakousiou

Piedrahita‐Bello

et al. 2020

Coordination Chemistry Reviews

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We review the synthesis, properties and applications of spin crossover polymer composites, polymers and some related 'soft' materials. These materials have received recently much attention because they provide an efficient way for the processing of spin crossover complexes in various shapes at various size scales and can give rise also to unique physical properties. First, we discuss in detail the state of the art of the elaboration of spin crossover polymer composites, using either inorganic complex precursors in solution or pre-formed spin crossover powder. A particular attention is paid on the influence of the polymer matrix on the spin crossover properties and on the use of 'active' polymers for development of synergies between the properties of the matrix and the load. Polymer composite devices for applications in the fields of artificial muscles, energy harvesting and thermochromic sensors are also highlighted. Then, more recent works, in which organic polymeric chains are used as ligands for the transition metal ions are presented. Finally, we overview various related 'soft' spin crossover compounds including spin crossover dendrimers, gels, liquid crystals and Langmuir Blodgett films with particular emphasis on compounds with supramolecular interactions of alkyl chains.

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Section: Composites Prepared From Solution 211 Solution Castingmentioning

confidence: 99%

Spin crossover polymer composites, polymers and related soft materials

Enríquez-Cabrera

Rapakousiou

Piedrahita‐Bello

et al. 2020

Coordination Chemistry Reviews

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“…In other cases, the spatial arrangement of the ST polymers is not necessary to attain the desired application and only a dispersion media conferring mechanical and environmental stability [14] to the metallo-organic polymer is required. In this context, the ability to isolate and preserve such linear metallo-organic polymers in solution, gels and polymer films constitutes a route to obtain novel functional materials, although it has been little developed so far [20][21].…”

Section: Introductionmentioning

confidence: 99%

Structure of a spin-crossover Fe(II)–1,2,4-triazole polymer complex dispersed in an isotactic polystyrene matrix

Rubio

Hernández

Nogales

et al. 2011

European Polymer Journal

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“…The entropies for the transitions were calculated assuming Δ G = 0 at ↑ T 1/2 on the second thermal cycle of the DSC. Changes in the spin transition of SC compounds when blended with polymers have been reported for other composites. − …”

mentioning

confidence: 74%

Synergic Bistability between Spin Transition and Fluorescence in Polyfluorene Composites with Spin Crossover Polymers

Sánchez‐Molina

Nieto‐Castro

Moneo‐Corcuera

et al. 2021

J. Phys. Chem. Lett.

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In recent years, several examples of materials combining the molecular bistability of spin crossover (SC) and fluorescent moieties have flourished in the literature. Fluorescence is a sensitive probe, and SC may provide modulation of the signal, thus affording systems in which physicochemical changes in the environment of the SC centers could be effectively detected. On the contrary, organic semiconductor polymers are of great interest and, furthermore, have been successfully applied in different optoelectronic devices, such as transistors, solar cells, and light-emitting devices. Herein, we report on the fabrication of composites comprising a fluorescent, organic semiconductor polymer (polyfluorene) and a spin crossover compound, an Fe(II)-triazole coordination polymer. A strong synergy was observed between the spin transition of the Fe(II) compound and variations in the fluorescence of the organic polymer. The fluorescence modulation was shown to be reversible, with an increase of ≤20% with respect to the original value.

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Storing Spin-Crossover and LC Phase Transitions Information by Hybridizing Spin-Crossover Complexes with a Thermotropic Polymer Matrix – A Novel Case of Multiple Switching

Cited by 6 publications

References 16 publications

Spin crossover polymer composites, polymers and related soft materials

Spin crossover polymer composites, polymers and related soft materials

Structure of a spin-crossover Fe(II)–1,2,4-triazole polymer complex dispersed in an isotactic polystyrene matrix

Synergic Bistability between Spin Transition and Fluorescence in Polyfluorene Composites with Spin Crossover Polymers

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