Electrochromic and photochromic behaviour in a single metal–organic framework containing a redox-active linker

Abstract

Zr-based metal organic framework with naphthalene diimide teracarboxylate linkers is reported for its dual electrochromic and photochromic behavior. MOF crystals display reversible yellow to green photochromism upon exposure to visible...

Zr-NDI MOF Based Optical and Electrochemical Dual Sensor for Selective Detection of Dopamine

“…Zr-NDI MOF (Figure 1) was synthesized as per our previously reported procedure. 31 Solvothermal reaction between ZrOCl 2 • 8H 2 O and N,N-bis(5-isophthalic acid)naphthalene diimide (BINDI) in the presence of formic acid as a modulator liberated clear octahedral shaped crystals. The hexanuclear Zr cluster is 4-connected with the remaining sites occupied by the formate units.…”

“…The synthesis of MOF and linker N , N -bis­(5-isophthalic acid) naphthalenediimide (BINDI) was carried out according to a reported method . ZrOCl 2 ·8H 2 O (0.01127 g, 0.035 mmol) and BINDI (0.01713 g, 0.028 mmol) were taken in a mixture of DMF/HCOOH (3.5/2 mL).…”

“…The synthesis of MOF and linker N,N-bis(5-isophthalic acid) naphthalenediimide (BINDI) was carried out according to a reported method. 31 ZrOCl 2 •8H 2 O (0.01127 g, 0.035 mmol) and BINDI (0.01713 g, 0.028 mmol) were taken in a mixture of DMF/HCOOH (3.5/2 mL). Then the glass vial with all components was subjected to sonication to get a uniform suspension and placed in an oven at 130 °C for 2 days.…”

Dual Photo-/Electrochromic Pyromellitic Diimide-Based Coordination Polymer

“…Stimuli-responsive chromic materials are a class of important smart materials, which exhibit a reversible transformation between two color forms in response to external physical or chemical stimuli, such as light, − electricity, − pressure, − heat, , pH, and organic amines. , Especially, bifunctional chromic materials with excellent photoelectric properties have been aroused great attention on account of their potential applications in smart windows, storage, energy conversion, gas sensing, camouflage, and cellular imaging. − Notably, the strategy of the development of bifunctional chromic materials, especially for the dual photo-/electrochromic coordination polymers (CPs), is an ingenious selection of redox organic ligands and assembles with the metal ions to regulate the local interactions . Although dual photo-/electrochromic behaviors have been observed in a series of CPs, it is restricted to the usage of a few species of ligands with strong electron-deficient characteristic and redox nature, such as viologen derivatives (V) and naphthalene diimide derivatives (NDIs). − However, the darker original colors of the most V-based and NDI-based CPs are not beneficial for the coloration contrast of photochromic and/or electrochromic materials. − Therefore, the development of novel organic ligands with suitable redox characteristics can not only enrich the species of bifunctional chromic materials but also endow them extraordinary photo-/electrochromic properties.…”

A study on controlling structural topologies in coordination networks: solvent-directed synthesis and distinct variations in optical properties

“…Naphthalenediimide (NDI) possesses a planar structure with electron-deficient and rigid properties, endowing NDI derivatives with multiple features of high electron affinity, excellent charge carrier mobility and stability, etc. 17 NDI-based CNs can serve as multifunctional materials, which play important roles in photo-responsive display materials, 18,19 electrochromic materials, 20 chemical sensors, 21,22 and erasable printing materials. 23,24 As a result, it is promising to design and synthesize NDI-based CN materials as well as to study the relationship between the structures and properties.…”