Supramolecular order and structural dynamics: A STM study of 2H-tetraphenylporphycene on Cu(111)

The Journal of Chemical Physics
Michael StarkHubertus Marbach

Abstract

The adsorption of 2H-tetraphenylporphycene (2HTPPc) on Cu(111) was investigated by scanning tunneling microscopy (STM). At medium coverages, supramolecular ordered islands are observed. The individual 2HTPPc molecules appear as two pairs of intense protrusions which are separated by an elongated depression. In the islands, the molecules are organized in rows oriented along one of the close packed Cu(111) substrate rows; the structure is stabilized by T-type interactions of the phenyl substituents of neighboring molecules. Two types of rows are observed, namely, highly ordered rows in which all molecules exhibit the same orientation, and less ordered rows in which the molecules exhibit two perpendicular orientations. Altogether, three different azimuthal orientations of 2HTPPc are observed within one domain, all of them rotated by 15° ± 1° relative to one closed packed Cu direction. The highly ordered rows are always separated by either one or two less ordered rows, with the latter structure being the thermodynamically more stable one. The situation in the islands is highly dynamic, such that molecules in the less ordered rows occasionally change orientation, also complete highly ordered rows can move. The supramolecular order a...Continue Reading

References

Mar 12, 1999·Science·J K Gimzewski, C Joachim
Jun 10, 2003·Chemical Society Reviews·Steven De Feyter, Frans C De Schryver
May 30, 2006·The Journal of Chemical Physics·W AuwärterJ V Barth
Sep 15, 2006·The Journal of Physical Chemistry. a·Mutasem Omar Sinnokrot, C David Sherrill
Dec 15, 2006·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Willi AuwärterJohannes V Barth
Dec 21, 2006·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Florian BuchnerHubertus Marbach
Apr 14, 2007·Annual Review of Physical Chemistry·Johannes V Barth
May 17, 2007·The Review of Scientific Instruments·I HorcasA M Baro
Jul 13, 2007·Journal of the American Chemical Society·Tatyana E ShubinaJ Michael Gottfried
Dec 15, 2007·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Alexander Weber-BargioniJohannes V Barth
Mar 5, 2008·Organic Letters·Takashi SasakiJames M Tour
Mar 21, 2008·Chemical Communications : Chem Comm·Mendel In't VeldRasmita Raval
Jul 10, 2008·Journal of the American Chemical Society·Matthieu KoepfJean Weiss
Oct 29, 2008·Physical Chemistry Chemical Physics : PCCP·Thorsten WölfleWolfgang Hieringer
Jun 24, 2009·ACS Nano·Florian BuchnerHubertus Marbach
Sep 8, 2010·Physical Chemistry Chemical Physics : PCCP·Florian BuchnerHubertus Marbach
Aug 10, 2011·Chemistry : a European Journal·Florian BuchnerHubertus Marbach
Jan 14, 2012·The Journal of Chemical Physics·K DillerJ V Barth
Sep 27, 2012·Angewandte Chemie·Stefanie DitzeHubertus Marbach
Feb 27, 2013·Langmuir : the ACS Journal of Surfaces and Colloids·Michael StarkHubertus Marbach
Jan 15, 2014·Journal of the American Chemical Society·Stefanie DitzeHubertus Marbach

❮ Previous
Next ❯

Citations

Dec 13, 2016·Langmuir : the ACS Journal of Surfaces and Colloids·Soichiro YoshimotoMasaaki Abe
Jul 21, 2017·Physical Chemistry Chemical Physics : PCCP·Liang ZhangHubertus Marbach

❮ Previous
Next ❯

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

Langmuir : the ACS Journal of Surfaces and Colloids
Michael StarkHubertus Marbach
The Journal of Physical Chemistry. B
Pascal RuffieuxPierangelo Gröning
Langmuir : the ACS Journal of Surfaces and Colloids
Shih-Hsin ChangRoland Wiesendanger
© 2021 Meta ULC. All rights reserved