On-surface synthesis of doubly-linked one-dimensional pentacene ladder polymers

Chemical Communications : Chem Comm
Kalyan BiswasDavid Ecija

Abstract

On-surface synthesis has recently become an essential approach toward the formation of carbon-based nanostructures. Special emphasis is set on the synthesis of π-conjugated polymers taking into consideration their relevance and potential in organic electronics, optoelectronics and spintronics. Here, we report the on-surface synthesis of conjugated ladder polymers consisting of pentacene units doubly-linked via ethynylene-like bonds on the Au(111) surface under ultra-high vacuum conditions. To this aim, we have sublimed pentacene-like precursors equipped with four :CBr2 functional groups to steer the desired reaction upon annealing on the surface. The atomically precise structure of the obtained polymers has been unambiguously characterized via low-temperature scanning tunneling microscopy and non-contact atomic force microscopy. In addition, scanning tunneling spectroscopy complemented with density-functional theory calculations reveal the narrow bandgap of the polymer. Our results provide potential for the synthesis of π-conjugated polymers with prospects in functional carbon-based nanomaterials that exploit multiple connections between molecular backbones.

References

Oct 23, 2004·Science·K S NovoselovA A Firsov
Dec 13, 2006·Physical Review Letters·J B NeatonSteven G Louie
Jul 24, 2010·Nature·Jinming CaiRoman Fasel
Sep 28, 2010·Physical Review Letters·C WeissR Temirov
Jun 1, 2013·Science·Dimas G de OteyzaFelix R Fischer
Jan 21, 2015·Accounts of Chemical Research·Benoit DubertretMauricio Terrones
May 30, 2017·Chemical Science·Jongbok LeeLei Fang
Aug 7, 2017·Journal of the American Chemical Society·José I UrgelRoman Fasel
Aug 18, 2017·ACS Nano·Rafal ZuzakSzymon Godlewski
Sep 25, 2017·Nature Communications·Juan Pablo LlinasJeffrey Bokor
May 24, 2018·Angewandte Chemie·Rafal ZuzakAntonio M Echavarren
Jul 4, 2018·Nature Chemistry·Niko PavličekLeo Gross
Feb 15, 2019·Angewandte Chemie·Ana Sánchez-GrandeDavid Écija
May 3, 2019·Journal of the American Chemical Society·Kun XuXinliang Feng
May 16, 2019·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·José I UrgelRoman Fasel
Dec 13, 2019·ACS Nano·Frank EisenhutFrancesca Moresco

❮ Previous
Next ❯

Citations

Jul 10, 2021·Chemical Communications : Chem Comm·Cristina Martín-FuentesDavid Écija

❮ Previous
Next ❯

Methods Mentioned

BETA
scanning
atomic force microscopy

Software Mentioned

SpOrQuMat
NanoMagCost

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry
Faming Kang, Wei Xu
Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry
André GourdonJunfa Zhu
Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry
Robert Lindner, Angelika Kühnle
© 2021 Meta ULC. All rights reserved