Javier Troyano

The production of metal-organic frameworks (MOFs) in the form of colloids has brought a paradigm shift in the design of new functional porous materials. Along with their intrinsic interest as porous solids, and contrary to their bulk powder counterparts, colloidal MOF particles can additionally be dispersed, shaped, functionalized, transformed and assembled in a controlled manner, conferring them further properties and applications. In this regard, zeolitic imidazolate framework-8 (ZIF-8) has be

The combination of the copper(i)-iodide entity with organic ligands gives rise to a large variety of Cu^II polynuclear structures in the form of molecular complexes or extended structures. An appropriate selection of these components allows the preparation of materials showing interesting physicochemical properties and potential applications, mainly focused on organic light-emitting diodes and optical sensors. The most prominent physical feature of these materials is their emission, wh

ConspectusMetal-organic frameworks (MOFs) and covalent organic frameworks (COFs) are among the most attractive porous materials today. They exhibit outstanding porosity for countless applications such as gas storage, CO₂ capture, gas separation, sensing, drug delivery, and catalysis. Moreover, researchers have recently begun to combine MOFs or COFs with other functional materials to obtain composites that boast the respective strengths, and mitigate the respective weaknesses, of each

The integration of swellable metal-organic frameworks (MOFs) into polymeric composite films is a straightforward strategy to develop soft materials that undergo reversible shape transformations derived from the intrinsic flexibility of MOF crystals. However, a crucial step toward their practical application relies on the ability to attain specific and programmable actuation, which enables the design of self-shaping objects on demand. Herein, a chemical etching method is demonstrated for the fabr

Abstract Herein, we exploit the well‐known swelling behaviour of metal–organic frameworks (MOFs) to create a self‐folding polymer film. Namely, we show that incorporating crystals of the flexible MOF MIL‐88A into a polyvinylidene difluoride (PVDF) matrix affords a polymer composite film that undergoes reversible shape transformations upon exposure to polar solvents and vapours. Since the self‐folding properties of this film correlate directly with the swelling properties of the MIL‐88A crystals,

Abstract A one‐pot reaction between Cu(BF 4 ) 2 · x H 2 O 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

Solvothermal reactions between copper(I) halides and 4-mercaptophenol give rise to the formation of three coordination polymers with general formula [Cu₃ X(HT)₂ ]_n (X=Cl, 1; Br, 2; and I, 3). The structures of these coordination polymers have been determined by X-ray diffraction at both room- and low temperature (110 K), showing a general shortening in Cu-S, Cu-X and Cu-Cu bond lengths at low temperatures. 1 and 2 are isostructural, consisting of layers in which

Direct reactions under ambient conditions between CuX (X = Br, I) and thiobenzamide (TBA) were carried out at different ratios, giving rise to the formation of a series of one-dimensional (1D) coordination polymers, (CPs) [CuI(TBA)] _n (1), [Cu₃I₃(TBA)₂] _n (4), and [CuBr(TBA)] _n (5), as well as two molecular complexes, [CuI(TBA)₃] (2) and [Cu₂I₂(TBA)₄]·2MeCN (3). Recrystallization of 1 an

Metal-organic polyhedra (MOPs) are molecular porous units in which desired functionalities can be installed with precise geometrical and compositional control. By combing two complementary chemical moieties, such as sulfonic acid groups and Rh(II)-carboxylate paddlewheel, we synthesized a robust water-soluble cuboctahedral MOP with excellent features in both solution and solid states. Herein, we demonstrate that the superior chemical stability of the Rh₂ unit and the elevated number o

Three-dimensional [CuX(TAA)]_n (X = Br (<bold>1</bold>), I (<bold>2</bold>)) and bi-dimensional [AgX(TAA)]_n (X = Cl (<bold>3</bold>), Br (<bold>4</bold>)) coordination polymers have been isolated by the direct synthesis from copper(<sc>i</sc>) and silver(<sc>i</sc>) halides and thioacetamide (TAA).

Ternary compounds based on copper(<sc>i</sc>) halides with thioacetamide and 4,4′-bipyridine or pyrazine have been prepared and characterized showing luminescence and semiconductivity.

The simple direct synthesis of Cu(<sc>ii</sc>) and Ag(<sc>i</sc>) salts and thiobenzoic acid under ambient conditions allows the preparation of two bidimensional coordination polymers [M(TB)]_n (TB = thiobenzoate; M = Cu (<bold>1</bold>) or Ag (<bold>2</bold>)).

Abstract Herein, we exploit the well‐known swelling behaviour of metal–organic frameworks (MOFs) to create a self‐folding polymer film. Namely, we show that incorporating crystals of the flexible MOF MIL‐88A into a polyvinylidene difluoride (PVDF) matrix affords a polymer composite film that undergoes reversible shape transformations upon exposure to polar solvents and vapours. Since the self‐folding properties of this film correlate directly with the swelling properties of the MIL‐88A crystals,

Shapeshifting materials have captured the imagination of researchers for their myriad potential applications, yet their practical development remains challenging. These materials operate by mechanical actuation: their structural responses to external stimuli generate mechanical work. Here, we review progress on the use of flexible metal-organic frameworks (MOFs) in composite actuators that shapeshift in a controlled fashion. We highlight the dynamic behaviour of flexible MOFs, which are unique a