Structural reconstruction and spontaneous formation of Fe polynuclears: a self-assembly of Fe–porphyrin coordination chains on Au(111) revealed by scanning tunneling microscopy

2016 ◽  
Vol 18 (21) ◽  
pp. 14273-14278 ◽  
Author(s):  
Yuxu Wang ◽  
Kun Zhou ◽  
Ziliang Shi ◽  
Yu-qiang Ma
Keyword(s):  
Scanning Tunneling Microscopy ◽  
Self Assembly ◽  
Chain Structure ◽  
Scanning Tunneling ◽  
Tunneling Microscopy ◽  
Spontaneous Formation ◽  
Self Assembled

Structural reconstruction and uniformly sized Fe polynuclears of a self-assembled Fe–porphyrin coordination chain structure are investigated by scanning tunneling microscopy.

scholarly journals Halogen Bonds Fabricate 2D Molecular Self-Assembled Nanostructures by Scanning Tunneling Microscopy

Crystals ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1057
Author(s):  
Yi Wang ◽  
Xinrui Miao ◽  
Wenli Deng
Keyword(s):  
Scanning Tunneling Microscopy ◽  
Self Assembly ◽  
Density Functional ◽  
Deep Understanding ◽  
Halogen Bonding ◽  
The Self ◽  
Scanning Tunneling ◽  
Halogen Bonds ◽  
Tunneling Microscopy ◽  
Self Assembled

Halogen bonds are currently new noncovalent interactions due to their moderate strength and high directionality, which are widely investigated in crystal engineering. The study about supramolecular two-dimensional architectures on solid surfaces fabricated by halogen bonding has been performed recently. Scanning tunneling microscopy (STM) has the advantages of realizing in situ, real-time, and atomic-level characterization. Our group has carried out molecular self-assembly induced by halogen bonds at the liquid–solid interface for about ten years. In this review, we mainly describe the concept and history of halogen bonding and the progress in the self-assembly of halogen-based organic molecules at the liquid/graphite interface in our laboratory. Our focus is mainly on (1) the effect of position, number, and type of halogen substituent on the formation of nanostructures; (2) the competition and cooperation of the halogen bond and the hydrogen bond; (3) solution concentration and solvent effects on the molecular assembly; and (4) a deep understanding of the self-assembled mechanism by density functional theory (DFT) calculations.

Self-assembly of trithia-9-crown-3 and octathia-24-crown-8 on Au(111) surfaces

RSC Advances ◽  
2016 ◽  
Vol 6 (85) ◽  
pp. 81726-81730
Author(s):  
Xiao-Ping Liu ◽  
Ke Deng ◽  
Qian Wei ◽  
Ming-hui Liang ◽  
Zhan-Jun Zhang ◽  
...  
Keyword(s):  
Scanning Tunneling Microscopy ◽  
Self Assembly ◽  
Self Assembled Monolayers ◽  
Scanning Tunneling ◽  
Tunneling Microscopy ◽  
Assembled Monolayers ◽  
Self Assembled ◽  
Microscopy Images

Scanning tunneling microscopy images of trithia-9-crown-3 and octathia-24-crown-8 self-assembled monolayers (SAMs) reveal completely different SAM structures for the two kinds of thiacrown molecules at liquid n-tetradecane/Au(111) interface.

CURRENT–VOLTAGE PROPERTIES OF SELF-ASSEMBLY MONOLAYERS ON AU(111) SUBSTRATE USING SCANNING TUNNELING MICROSCOPY

2006 ◽  
Vol 05 (06) ◽  
pp. 907-911
Author(s):  
NAM-SUK LEE ◽  
HOON-KYU SHIN ◽  
YOUNG-SOO KWON
Keyword(s):  
Thin Film ◽  
Electrical Properties ◽  
Scanning Tunneling Microscopy ◽  
Self Assembly ◽  
Scanning Tunneling Spectroscopy ◽  
Scanning Tunneling ◽  
Organic Thin Film ◽  
Tunneling Microscopy ◽  
Current Voltage ◽  
Self Assembled

This study observes the morphology of self-assembled organic thin film that is formed at room temperature using a Scanning Tunneling Microscopy (STM) and examines its electrical properties using a Scanning Tunneling Spectroscopy (STS). The specimen used in this experiment that has a functional group for both sides and will be controlled to make self-assembled onto the Au (111) substrate. After the dilution of the specimen by 1 mM/ml and self-assembled onto the Au (111) substrate. Using a STM, the images of organic thin film can be observed. In addition, the electrical properties of organic thin film can also be examined by the junction structure of STM–organic thin film– Au (111) substrate by using a STM tip. As a result, we measured current–voltage (I–V) curve using STS, I–V curve also clearly shows several current peaks between the negative bias region (-1.42 V) and the positive bias region (1.30 V), respectively.

Scanning Tunneling Microscopy of Template-Stripped Au Surfaces and Highly Ordered Self-Assembled Monolayers

Langmuir ◽  
2008 ◽  
Vol 24 (12) ◽  
pp. 5984-5987 ◽  
Author(s):  
Sangyeob Lee ◽  
Sung-Soo Bae ◽  
Gilberto Medeiros-Ribeiro ◽  
Jason J. Blackstock ◽  
Sehun Kim ◽  
...  
Keyword(s):  
Scanning Tunneling Microscopy ◽  
Self Assembled Monolayers ◽  
Scanning Tunneling ◽  
Tunneling Microscopy ◽  
Assembled Monolayers ◽  
Self Assembled

Understanding molecular self-assembly of a diol compound by considering competitive interactions

2016 ◽  
Vol 18 (39) ◽  
pp. 27390-27395 ◽  
Author(s):  
Oscar Díaz Arado ◽  
Maike Luft ◽  
Harry Mönig ◽  
Philipp Alexander Held ◽  
Armido Studer ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Scanning Tunneling Microscopy ◽  
Self Assembly ◽  
Density Functional ◽  
Competitive Interactions ◽  
Scanning Tunneling ◽  
Tunneling Microscopy ◽  
Functional Theory ◽  
Chemical Groups

With a combination of scanning tunneling microscopy and density functional theory, effects on molecular self-assembly involving two distinct chemical groups were investigated.

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