A5052714030- TiO2 Photocatalysis and Solar Cells
- Advanced Photocatalysis Techniques
- Asymmetric Synthesis and Catalysis
- Asymmetric Hydrogenation and Catalysis
- Photochemistry and Electron Transfer Studies
- Organic Light-Emitting Diodes Research
- Conducting polymers and applications
- Catalytic C–H Functionalization Methods
- Chemical Synthesis and Analysis
- Synthesis and Catalytic Reactions
- Synthetic Organic Chemistry Methods
- Catalytic Cross-Coupling Reactions
- Polyoxometalates: Synthesis and Applications
- Catalytic Alkyne Reactions
- Photochromic and Fluorescence Chemistry
- Pigment Synthesis and Properties
- Advanced Nanomaterials in Catalysis
- Organic Electronics and Photovoltaics
- Orthopaedic implants and arthroplasty
- Luminescence and Fluorescent Materials
- Perovskite Materials and Applications
- Quantum Dots Synthesis And Properties
- Chemical Synthesis and Reactions
- Analytical Chemistry and Sensors
- Advanced Chemical Sensor Technologies
Institute for the Chemistry of OrganoMetallic Compounds
2016-2025
National Academies of Sciences, Engineering, and Medicine
2024
National Research Council
2020-2024
Loughborough University
2017-2023
Politecnico di Milano
1991-2017
Institute of Cancer Research
2014-2016
Cancer Research UK
2016
Institute of Cancer Research
2016
Nello Carrara Institute of Applied Physics
2015
Institute of Organic Synthesis and Photoreactivity
2012-2014
Acid treatment: Exposure of catalytically inactive (neutral) molecules to strong Brønsted acids generates cationic species (e.g. 1 and 2) that catalyze a wide range synthetically powerful transformations. These reactions give products with excellent ee values. TfO−=trifluoromethanesulfonate; TFA=trifluoroacetic acid.
Machining of micro SiCp/AA2124 composites remains a challenge with conventional machining yielding poor surface quality high tool wear. In this paper, we study two distinct and unique hybrid processes the aim improving outcome three types micro-SiC/AA2124 different particulate volume fractions sizes. The class studied is available commercially being used in industrial applications, thus assessing outcomes becomes even more pertinent. Vibratory where made to vibrate at ultrasonic frequencies,...
The ability of Time-Dependent Density Functional Theory (TD-DFT) to provide excited state geometries and reproduce emission energies organic D-π-A dyes designed for DSSC applications is evaluated. performance six functionals (CAM-B3LYP, MPW1K, ωB97X-D, LC-BLYP, LC-ωPBE, M06-HF) in combination with three basis sets (cc-pVDZ, 6-31+G(d,p), 6-311+G(2d,p)) has been analyzed. Solvent effects have taken into account by means a Polarizable Continuum Model both LR SS formalisms. Our LR-PCM/TD-DFT...
Semitransparent dye-sensitized solar cells (DSSCs) for greenhouse integration were manufactured by using especially designed organic dyes featuring different heterocyclic moieties integrated into a thiazolo[5,4-<italic>d</italic>]thiazole-molecular scaffold.
Visible light-driven production of fuels and value-added chemicals is currently one the most intensely investigated research topics across various scientific disciplines, due to its potential ease World s dependence on fossil fuels. In this perspective, we recapitulate some main features dye-sensitized photocatalytic systems aimed at solar H$_2$ production, focusing in particular TiO$_2$-based three-component assemblies with organic sensitizers. Relevant aspects include structural electronic...
Luminescent solar concentrators (LSCs) are a class of optical devices able to harvest, downshift, and concentrate sunlight, thanks the presence emitting materials embedded in polymer matrix. Use LSCs combination with silicon-based photovoltaic (PV) has been proposed as viable strategy enhance their ability harvest diffuse light facilitate integration built environment. LSC performances can be improved by employing organic fluorophores strong absorption center spectrum intense, red-shifted...
A one-pot, enantioselective synthesis of N-aryl propargylic amines, using alkynylation reagents obtained from dimethylzinc and terminal acetylenes in combination with various aldehydes o-methoxyaniline as starting materials, has been developed. Enantiopure beta-amino alcohols derived norephedrine were used non-covalent chiral auxiliaries, both stoichiometric or substoichiometric amount. After optimization, amines good to high yields (up 93%) moderate enantiomeric excesses 97% ee). The...
Three new thiazolo[5,4-d]thiazole-based organic dyes have been designed and synthesized for employment as DSSC sensitizers. Alternation of the electron poor thiazolothiazole unit with two propylenedioxythiophene (ProDOT) groups ensured very intense light absorption in visible region (ε up to 9.41 × 104 M−1 cm−1 THF solution). The were particularly suitable application transparent opaque thin-layer DSSCs (TiO2 thickness: 5.5–6.5 μm, efficiencies 7.71%), thus being good candidates production...
Abstract Thiazolo[5,4‐ d ]thiazoles (TzTzs) are fused bicyclic heteroaromatic compounds characterized by a rigid planar backbone and an extended π‐conjugated electronic structure. Although they have been known for many decades, interest in their properties applications has begun to increase only recently, after incorporation into series of active materials used the field organic electronics. Recently, thiazolo[5,4‐ ]thiazole scaffold inserted new photoactive (both small‐molecule polymers)...
Conversion of sunlight into chemical energy has been the subject intense research efforts in recent years, due to possibility store enormous amount continuously provided by Sun form useful “solar fuels”. To allow such process, suitable photocatalysts are required, which usually obtained combination different inorganic materials or self‐assembly molecular components on semiconductor surfaces: accordingly, they capable carry out several processes as light harvesting, substrate binding,...
In this paper, we present the design and synthesis of three organic dyes specially developed for fabrication dye-sensitized solar cells with potential application in greenhouses cladding.
A hybrid-hybrid (ultrasonic-assisted + laser-assisted) turning study of silicon carbide reinforced aluminium metal matrix composite is presented. The results show a significant reduction average cutting force with an improved surface finish machined components compared to conventional machining, implying that this new and novel paradigm viable machining process.
We report an efficient procedure to carry out palladium-catalyzed Miyaura borylation reactions of (hetero)aromatic halides and triflates in choline chloride (ChCl)-based deep eutectic solvents (DESs). The employs bis(pinacolato)diboron as a boron source catalyst prepared situ from readily available Pd2(dba)3 the phosphine ligand XPhos. Reactions proceed well different ChCl-based DESs, among which best results were provided by environmentally friendly biodegradable mixtures with glycerol...
A preparatively easy and efficient protocol for the resolution of racemic 2-aminocyclohexanol derivatives is described, delivering both enantiomers with >99% enantiomeric excess (ee) by sequential use (R)- (S)-mandelic acid. simple aqueous workup procedure permits isolation amino alcohols in analytically pure form almost quantitative recovery mandelic Debenzylation enantiopure trans-2-(N-benzyl)amino-1-cyclohexanol hydrogenation subsequent derivatization give access to a broad variety...
The treatment of various aromatic and aliphatic aldimines with a mixture terminal alkyne commercially available dimethylzinc solution in toluene yields the corresponding protected propargylic amines moderate to excellent yields. reaction proceeds absence any activator. These observations led development three-component synthesis which product was obtained upon mixing an aldehyde ortho-methoxyaniline phenylacetylene presence dimethylzinc, through situ formation imine.
Abstract Aryl alkyl‐, heteroaryl alkyl‐ and dialkyl ketones were readily reduced to their corresponding secondary alcohols in high yields, using the commercially available inexpensive polymeric silane polymethylhydrosiloxane (PMHS), as reducing agent. The reaction is catalyzed by an situ ‐generated iron complex, conveniently generated from iron(II) acetate N ‐heterocyclic carbene (NHC) precursor IPr·HCl. Copyright © 2011 John Wiley & Sons, Ltd.
Abstract Four new D‐π‐A organic dyes incorporating either a thiazolo[5,4‐ d ]thiazole bicyclic system ( TTZ1 – 2 ) or benzo[1,2‐ :4,5‐ d′ ]bisthiazole tricyclic unit BBZ1 have been synthesized and fully characterized. The key steps of the synthesis include an efficient MW‐assisted preparation core selective functionalization two different dihalothienyl derivatives through Suzuki coupling. All compounds showed photo‐ electrochemical properties compatible with their employment in...
Five thiazolothiazole-based dyes, bearing electronrich ProDOT groups, were used as sensitizers in thin-layer DSSCs (active area: 0.25–3.6 cm<sup>2</sup>; TiO<sub>2</sub> thickness: 3.0–6.5 μm), giving efficiencies up to 7.71% coupled with excellent stability over 1000 h.
Photostable donor–acceptor–donor fluorophores, which have a central quinoxaline acceptor nucleus, been used in LSCs, obtaining outstanding results for modern building-integrated photovoltaics (BIPV).