A5032860002- Supramolecular Chemistry and Complexes
- Luminescence and Fluorescent Materials
- Quantum Dots Synthesis And Properties
- Supramolecular Self-Assembly in Materials
- Nanocluster Synthesis and Applications
- Photochromic and Fluorescence Chemistry
- Advanced biosensing and bioanalysis techniques
- Molecular Sensors and Ion Detection
- Organic Electronics and Photovoltaics
- Chalcogenide Semiconductor Thin Films
- Dendrimers and Hyperbranched Polymers
- Photoreceptor and optogenetics research
- High voltage insulation and dielectric phenomena
- solar cell performance optimization
- Molecular Junctions and Nanostructures
- Semiconductor Lasers and Optical Devices
- Carbon and Quantum Dots Applications
- Polydiacetylene-based materials and applications
- Chemical Reactions and Isotopes
- Advanced Sensor and Energy Harvesting Materials
- Optical Wireless Communication Technologies
- DNA and Nucleic Acid Chemistry
- Microtubule and mitosis dynamics
- Electrowetting and Microfluidic Technologies
- Liquid Crystal Research Advancements
Institute of Organic Synthesis and Photoreactivity
2018-2021
University of Bologna
2014-2021
Laboratoire de l'Intégration du Matériau au Système
2017
We exploit a reversible acid–base triggered molecular shuttling process to switch an appropriately designed rotaxane between prochiral and mechanically planar chiral forms. The enantiomers their interconversion, arising from ring shuttling, have been characterized by NMR spectroscopy. also show that the supramolecular interaction of positively charged with optically active anions causes imbalance in population two enantiomeric coconformations. This result represents unprecedented example...
Abstract Energy sustainability and interconnectivity are the two main pillars on which cutting‐edge architecture is based require realization of energy intelligent devices that can be fully integrated into buildings, capable meeting stringent regulatory requirements operating in real‐world conditions. Luminescent solar concentrators, particularly those near‐infrared emitting reabsorption‐free quantum dots, considered good candidates for semi‐transparent photovoltaic glazing, but despite...
Abstract The size‐tunable emission of luminescent quantum dots (QDs) makes them highly interesting for applications that range from bioimaging to optoelectronics. For the same applications, engineering their luminescence lifetime, in particular, making it longer, would be as important; however, no rational approach reach this goal is available date. We describe a strategy prolong lifetime QDs through electronic energy shuttling triplet excited state surface‐bound molecular chromophore. To...
Abstract The transport of substrates is one the main tasks biomolecular machines in living organisms. We report a synthetic small‐molecule system designed to catch, displace, and release molecular cargo solution under external control. consists bistable rotaxane that behaves as an acid–base controlled shuttle, whose ring component bears tether ending with nitrile group. latter can be coordinated ruthenium complex acts load, dissociated upon irradiation visible light. loading/unloading...
The development of artificial nanoscale motors that can use energy from a source to perform tasks requires systems capable performing directionally controlled molecular movements and operating away chemical equilibrium. Here, the design, synthesis properties pseudorotaxanes are described, in which photon input triggers unidirectional motion macrocyclic ring with respect non-symmetric axle. photoinduced ratcheting at basis pumping mechanism is validated by measuring relevant thermodynamic...
A high-yielding synthesis of a series polyimide dendrimers, including decacyclene- and perylene-containing dendrimer D6, in which two types dyes are present, is reported. In these constructs, the branching unit represented by trisphenylamine, solubilizing chains N-9-heptadecanyl-substituted perylene diimides. The photophysical properties dendrimers have been studied absorption, steady-state, time-resolved emission spectroscopy pump-probe transient absorption spectroscopy. Photoinduced...
Abstract The size‐tunable emission of luminescent quantum dots (QDs) makes them highly interesting for applications that range from bioimaging to optoelectronics. For the same applications, engineering their luminescence lifetime, in particular, making it longer, would be as important; however, no rational approach reach this goal is available date. We describe a strategy prolong lifetime QDs through electronic energy shuttling triplet excited state surface‐bound molecular chromophore. To...
We describe herein an operationally advantageous general methodology for efficiently activating lipoic acid based compounds, a family of popular surface ligands semiconductor nanocrystals, through the use borohydride exchange resin, and activated species to replace native quantum dots. The procedure enabled phase transfer nanocrystals between polar aqueous media and, if unsubstituted was used, facile adjustment their solubility in wide range solvents with varying polarity (from hexane...
This paper deals with the role played by interface and bulk volume of nanofiller about affecting electrical properties a nanocomposite material. For this purpose, simple completely amorphous matrix, polystyrene (PS), is used as base material, core-shell quantum dots are exploited for simulating structure nanocomposites: CdSe core CdSe-ZnS semiconductor (QDs) added into PS matrix. The latter to highlight effect ZnS contrast Dispersion distribution QDs first microscopically observed optimized...
The solubility of luminescent quantum dots in solvents from hexane to water can be finely tuned by the choice countercations associated with carboxylate residues present on nanocrystal surface. resulting nanocrystals exhibit long term colloidal and chemical stability maintain their photophysical properties.
Abstract A high‐yielding synthesis of a series polyimide dendrimers, including decacyclene‐ and perylene‐containing dendrimer D6 , in which two types dyes are present, is reported. In these constructs, the branching unit represented by trisphenylamine, solubilizing chains N ‐9‐heptadecanyl‐substituted perylene diimides. The photophysical properties dendrimers have been studied absorption, steady‐state, time‐resolved emission spectroscopy pump–probe transient absorption spectroscopy....
Abstract Invited for the cover of this issue is Alberto Credi and co‐workers at University Bologna National Research Council, Bologna, Italy. The image represents photostationary non‐equilibrium operation supramolecular pumps as a hydraulic circuit in which water flows between reservoirs. Read full text article 10.1002/chem.202101163 .
Abstract Invited for the cover of this issue is group Alberto Credi from Università di Bologna and Consiglio Nazionale delle Ricerche, Italy. The image shows a multiphotochromic molecule its configurational isomers, which can be reversibly interconverted by light in solution solid state.