Multifunctional polyurethanes synthesized from different triarylamine units with electrochromic, photogeneration, memory storage and sensing properties

Abstract

Herein, we report three multifunctional polyurethane materials, which exhibit excellent electrochromic, photoelectric, memory and sensing properties, and also have good mechanical properties.

A Chiral Molecular Cage Comprising Diethynylallenes and N‐Heterotriangulenes for Enantioselective Recognition

“…[13][14][15] On this firm basis, we advocate the use of bridged triarylamines, known as N-heterotriangulenes (N-HTAs), in the role of chromophoric aromatic lids, in order to achieve redox-active nanosized cavities [16][17][18][19][20] for larger chiral guests, aiming at setting foot on the realm of enantioselective discrimination. [21][22][23] Precedents of sensing examples involving triarylamines range from the detection of metallic cations, [24] to toxic anions [25] or anions present in chemical weapons, [26] nitroaromatic explosives, [27] biological metabolites, [28] toxic gases, [29,30] and pH determination. [31] Regarding the implementation of triarylamines in both macrocyclic and cage structures, few examples can be tracked down in literature, [32][33][34][35][36][37][38][39] and even scarcer examples are found for their bridged analogues, N-HTAs, whose presence in complexing and sensing processes is limited.…”

“…Precedents of sensing examples involving triarylamines range from the detection of metallic cations, [24] to toxic anions [25] or anions present in chemical weapons, [26] nitroaromatic explosives, [27] biological metabolites, [28] toxic gases,[ 29 , 30 ] and pH determination. [31] Regarding the implementation of triarylamines in both macrocyclic and cage structures, few examples can be tracked down in literature,[ 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 ] and even scarcer examples are found for their bridged analogues, N ‐HTAs, whose presence in complexing and sensing processes is limited.…”

Self-Assembled Naphthalimide Nanoparticles for Nonvolatile ReRAM Devices: An Efficient Approach toward High Performance Solution-Processed and All-Organic Two-Terminal Resistive Memory Devices

“…59 It has been well-explored in the literature that the presence of formyl, as well as multiple fluorine groups, in the small naphthalimide derivative enhances the strong H-bonding driven intermolecular π−π stacking interaction in aqueous media and forms homogeneously dispersed stable spherical nanoparticles. The synthesized molecule was characterized by high-resolution mass spectrometry (HRMS) and multinuclear ( 1 H, 13 C, and 19 F) NMR spectroscopy (Figures S1−S7).…”

“…HPLC grade solvents used in this study were purchased from Fisher Scientific Ltd. and RANKEM. NMR ( 1 H, 13 C) spectra were recorded with a Bruker Avance 600 MHz spectrometer. All solutions for 1 H and 13 C spectra were obtained by taking residual solvent signal as an internal reference.…”

“…NMR ( 1 H, 13 C) spectra were recorded with a Bruker Avance 600 MHz spectrometer. All solutions for 1 H and 13 C spectra were obtained by taking residual solvent signal as an internal reference. Electrospray ionization mass spectrometry (ESI-MS) was recorded on a Waters (Micro mass MS-Technologies) Q-Tof MS Analyzer spectrometer.…”