Photochemistry Highlights on On‐Surface Synthesis

On‐surface chemistry is a promising way to achieve the bottom‐up construction of covalently‐bonded molecular precursors into extended atomically‐precise polymers adsorbed on surfaces. These polymers exhibit unprecedented physical or chemical properties which are of great interest for various potenti...

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Bibliographic Details
Published in:Chemphyschem 2019-09, Vol.20 (18), p.2271-2280
Main Authors: Palmino, F., Loppacher, C., Chérioux, F.
Format: Article
Language:English
Subjects:
Acoustics
Adatoms
Catalysis
Chemical bonds
Chemical properties
Chemical synthesis
Crystal surfaces
Engineering Sciences
High vacuum
Materials
Micro and nanotechnologies
Microelectronics
Nanoarchitectures
Noble metals
on-surface chemistry
Organic chemistry
Photochemistry
photopolymerization
Polymerization
Polymers
scanning probe microscopy
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Summary:On‐surface chemistry is a promising way to achieve the bottom‐up construction of covalently‐bonded molecular precursors into extended atomically‐precise polymers adsorbed on surfaces. These polymers exhibit unprecedented physical or chemical properties which are of great interest for various potential applications. These nanostructures were mainly obtained in ultra‐high vacuum (UHV) on noble metal single‐crystal surfaces by thermal annealing as stimulus to provoke the polymerization with a catalytic role of the surface adatoms. Nevertheless, photons are also a powerful source of energy to induce the formation of covalent architectures, even if it is less‐used on surfaces than in solution. In this minireview, we discuss the photo‐induced on‐surface polymerization from the basic mechanisms of photochemistry to the formation of extended polymers on different kinds of surfaces, which are characterized by scanning probe microscopies. Powerful photons! The fabrication of extended atomically‐precise polymers adsorbed on surfaces is still mainly obtained by thermal annealing. Nevertheless, photons are also a powerful source of energy to induce the formation of covalent architectures. In this minireview, we discuss the photo‐induced polymerization on surfaces from the basic mechanisms of photochemistry on surfaces to the formation of extended polymers on different kinds of surfaces which are characterized by scanning probe microscopies.
ISSN:1439-4235
1439-7641
DOI:10.1002/cphc.201900312