Reversible Thermochromic Polymeric Thin Films Made of Ultrathin 2D Crystals of Coordination Polymers Based on Copper(I)‐Thiophenolates

Javier Troyano; Oscar Castillo; José I. Martínez; Vanesa Fernández‐Moreira; Yolanda Ballesteros; Daniel Maspoch; Félix Zamora; Salome Delgado

doi:10.1002/adfm.201704040

journal article·2018-01Open access

Reversible Thermochromic Polymeric Thin Films Made of Ultrathin 2D Crystals of Coordination Polymers Based on Copper(I)‐Thiophenolates

Javier Troyano, Oscar Castillo, José I. Martínez, Vanesa Fernández‐Moreira, Yolanda Ballesteros, Daniel Maspoch, Félix Zamora, Salome Delgado

Advanced Functional Materials· Volume 28· Issue 5

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Source abstract

Abstract

Abstract A one‐pot reaction between Cu(BF₄)₂·xH₂O and 4‐mercaptobenzoic acid in acetone or methanol gives rise to the formation of lamellar microcrystals of two Cu(I)‐thiophenolate‐based coordination polymers (CPs) with the formulas [CuCT] _n (1) (CT = 4‐carboxy‐thiophenolate) and [CuMCT]_n (2) (MCT = 4‐methoxycarbonyl‐thiophenolate). Both 1 and 2 show a reversible luminescent thermochromic behavior upon cooling, changing their color from pale yellow to green to orange in the case of 1, and from pale orange to green in the case of 2. It is shown that the lamellar character of these crystals, which exhibit micrometer lateral dimensions and sub‐micrometer/nanometer thicknesses, allows processing them with an organic polymer such as polyvinylidene difluoride (PVDF) to form thermochromic 1@PVDF and 2@PVDF thin films. These thermal stimuli‐responsive thin films are freestanding, free of macroscopic defects, and robust under mechanical bending stress, opening up the possibility to use them in, for example, 2D imaging sensor films.

Source: crossref · Quality: baseline

Research context

Polymers Nanomaterials

OpenAlex topics: Metal-Organic Frameworks: Synthesis and Applications · Crystallography and molecular interactions · Supramolecular Self-Assembly in Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Departamento de Química Inorgánica Universidad Autónoma de Madrid 28049 Madrid Spain

Catalan Institute of Nanoscience and Nanotechnology (ICN2) CSIC and the Barcelona Institute of Science and Technology Campus UAB Bellaterra 08193 Barcelona Spain

Departamento de Química Inorgánica Universidad del País Vasco UPV/EHU, Apartado 644 E‐48080 Bilbao Spain

Departamento de Nanoestructuras, Superficies Recubrimientos y Astrofísica Molecular Instituto de Ciencia de Materiales de Madrid (ICMM‐CSIC) 28049 Madrid Spain

Departamento de Química Inorgánica Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) CSIC‐Universidad de Zaragoza Zaragoza 50009 Spain

Instituto de Investigación Tecnológica Departamento de Ingeniería Mecánica Universidad Pontificia Comillas 28015 Madrid Spain

ICREA Pg. Lluís Companys 23 08010 Barcelona Spain

Condensed Matter Physics Center (IFIMAC) Universidad Autónoma de Madrid 28049 Madrid Spain

Institute for Advanced Research in Chemical Sciences (IAdChem) Universidad Autónoma de Madrid 28049 Madrid Spain

Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA Nanociencia) Cantoblanco 28049 Madrid Spain

Funding

Ministerio de Economía y Competitividad · Agència de Gestió d’Ajuts Universitaris i de Recerca · European Research Council

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