Dimensionality Mediated Highly Repeatable and Fast Transformation of Coordination Polymer Single Crystals for All-Optical Data Processing

Abstract

A family of metal-organic frameworks (MOFs) and coordination polymers (CPs) based on dynamic structural elements are of great fundamental and commercial interest addressing modern problems in controlled molecular separation, catalysis and even data processing. Herein, the endurance and fast structural dynamics of such materials at ambient conditions are still a fundamental challenge. Here, we report on the design of a series of Cu-based CPs [Cu(bImB)Cl2](1) and [Cu(bImB)2Cl2] (2), where bImB is 1,4-bis(imidazol-1-yl)butane), with flexible ligand packed into one-and two-dimensional (1D, 2D) structures demonstrating dimensionality mediated

Metal-mediated tunability of MOF-based optical modulators

“…As we have shown recently, 14,16 an infrared laser light stimulates the heating and thermal expansion of semi-flexible and nonphotosensitive MOFs at the wavelength of photo-absorption. Following this, we have analysed the optical transmission spectra for single MOF crystals (Fig.…”

“…5 To address these challenges, the researchers aim to replace the active media of the optical modulator with sustainable organic [6][7][8] and hybrid materials. 9 In this sense, the utilization of metal-organic frameworks (MOFs) [10][11][12][13][14][15][16][17][18] has stimulated further green digital transition. 19 Indeed, MOFs are crystalline solids constructed from inorganic building blocks connected via organic ligands.…”

“…5 To address these challenges, the researchers aim to replace the active media of the optical modulator with sustainable organic 6–8 and hybrid materials. 9 In this sense, the utilization of metal–organic frameworks (MOFs) 10–18 has stimulated further green digital transition. 19…”

“…Using MOF 1 as a model, we have found that the heating leads to a linear increase of the lattice parameters (0.66% for a , 0.34% for b , and 0.35% for c ), a decrease in the θ angle (by 0.18%), and a corresponding linear increase in the volume (0.8%) on heating to 373 K. As can be seen, the thermal expansion is described by 0.01% volume change of MOF 1 when heated by 1 K (0.01% K −1 ), which, on the one hand, is small compared with the flexible MOFs showing several tens of % changes in the volume upon heating; 40 on the other hand, it gives reason to believe that these changes will be pretty fast and repeatable. 14,16…”

Synthesis and characterization of ZnBTC-based MOFs: effect of solvents and salt

“…Different functionality, adjustable porosity, mechanical strength and thermal stability can be imparted to the framework by changing its constituent parts [22]. Due to these properties MOF appear as promising materials that can be used for the adsorption/storage and separation of gases, in catalysis, biomedicine, and also for the creation of sensor devices [23][24][25][26]. Of particular interest is the further modification of the structure of MOFs, including their intracrystalline space, to create new properties or optimize existing structural/chemical characteristics [27,28].…”