On-Surface Hydrogenation of Buckybowls: From Curved Aromatic Molecules to Planar Non-Kekule Aromatic Hydrocarbons

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F20%3A00349575" target="_blank" >RIV/68407700:21340/20:00349575 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/20:00539682 RIV/61388955:_____/20:00539682 RIV/61388963:_____/20:00539682

Výsledek na webu

<a href="https://doi.org/10.1021/acsnano.0c04488" target="_blank" >https://doi.org/10.1021/acsnano.0c04488</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acsnano.0c04488" target="_blank" >10.1021/acsnano.0c04488</a>

Jazyk výsledku

angličtina

Název v původním jazyce

On-Surface Hydrogenation of Buckybowls: From Curved Aromatic Molecules to Planar Non-Kekule Aromatic Hydrocarbons

Popis výsledku v původním jazyce

Functionalization of surfaces with derivatives of Buckminsterfullerene fragment molecules seems to be a promising approach toward bottom-up fabrication of carbon nanotube modified electrode surfaces. The modification of a Cu(100) surface with molecules of the buckybowl pentaindenocorannulene has been studied by means of scanning tunneling microscopy, carbon monoxide-modified noncontact atomic force microscopy, time-offlight secondary mass spectrometry, and quantum chemical calculations. Two different adsorbate modes are identified, in which the majority is oriented such that the bowl cavity points away from the surface and the convex side is partially immersed into a four-atom vacancy in the Cu(100) surface. A minority is oriented such that the convex side points away from the surface with the five benzo tabs oriented basically parallel to the surface. Thermal annealing leads to hydrogenation and planarization of the molecules in two steps under specific C-C bond cleavage. The benzo tabs of the convex side up species serve as a hydrogen source. The final product has an open-shell electron structure that is quenched on the surface.

Název v anglickém jazyce

On-Surface Hydrogenation of Buckybowls: From Curved Aromatic Molecules to Planar Non-Kekule Aromatic Hydrocarbons

Popis výsledku anglicky

Functionalization of surfaces with derivatives of Buckminsterfullerene fragment molecules seems to be a promising approach toward bottom-up fabrication of carbon nanotube modified electrode surfaces. The modification of a Cu(100) surface with molecules of the buckybowl pentaindenocorannulene has been studied by means of scanning tunneling microscopy, carbon monoxide-modified noncontact atomic force microscopy, time-offlight secondary mass spectrometry, and quantum chemical calculations. Two different adsorbate modes are identified, in which the majority is oriented such that the bowl cavity points away from the surface and the convex side is partially immersed into a four-atom vacancy in the Cu(100) surface. A minority is oriented such that the convex side points away from the surface with the five benzo tabs oriented basically parallel to the surface. Thermal annealing leads to hydrogenation and planarization of the molecules in two steps under specific C-C bond cleavage. The benzo tabs of the convex side up species serve as a hydrogen source. The final product has an open-shell electron structure that is quenched on the surface.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10401 - Organic chemistry

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

ACS NANO

ISSN

1936-0851

e-ISSN

1936-086X

Svazek periodika

14

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

16735-16742

Kód UT WoS článku

000603308800037

EID výsledku v databázi Scopus

2-s2.0-85095845992