Identifications and electronic characterizations of four cyclodehydrogenation products of H2TPP molecules on Au(111)

2021 ◽  
Author(s):  
Jianchen Lu ◽  
Binbin Da ◽  
Wei Xiong ◽  
Renjun Du ◽  
Zhenliang Hao ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Scanning Tunneling Microscopy ◽  
Bond Activation ◽  
Scanning Tunneling ◽  
Coupling Reactions ◽  
Tunneling Microscopy ◽  
Force Microscopy ◽  
Atomic Force ◽  
Dehydrogenative Coupling

C–H bond activation and dehydrogenative coupling reactions have always been significant approaches to construct microscopic nanostructures on surfaces. By using scanning tunneling microscopy/spectroscopy (STM/STS) and non-contact atomic force microscopy (nc-AFM)...

Adsorption and Desorption of AlCl3on Si(111)7×7 Observed by Scanning Tunneling Microscopy and Atomic Force Microscopy

1993 ◽  
Vol 32 (Part 1, No. 12B) ◽  
pp. 6200-9202 ◽  
Author(s):  
Katsuhiro Uesugi ◽  
Takaharu Takiguchi ◽  
Michiyoshi Izawa ◽  
Masamichi Yoshimura ◽  
Takafumi Yao
Keyword(s):  
Atomic Force Microscopy ◽  
Scanning Tunneling Microscopy ◽  
Scanning Tunneling ◽  
Tunneling Microscopy ◽  
Adsorption And Desorption ◽  
Force Microscopy ◽  
Atomic Force

Scanning Tunneling Microscopy and Atomic Force Microscopy Investigation of Organic Tetracyanoquinodimethane Thin Films

1997 ◽  
Vol 12 (8) ◽  
pp. 1942-1945 ◽  
Author(s):  
H. J. Gao ◽  
H. X. Zhang ◽  
Z. Q. Xue ◽  
S. J. Pang
Keyword(s):  
Thin Films ◽  
Atomic Force Microscopy ◽  
Scanning Tunneling Microscopy ◽  
Pyrolytic Graphite ◽  
Film Surface ◽  
Scanning Tunneling ◽  
Tunneling Microscopy ◽  
Force Microscopy ◽  
Atomic Force ◽  
Microscopy Investigation

Scanning tunneling microscopy (STM) and atomic force microscopy (AFM) investigation of tetracyanoquinodimethane (TCNQ) and the related C60-TCNQ thin films is presented. Periodic molecular chains of the TCNQ on highly oriented pyrolytic graphite (HOPG) substrates were imaged, which demonstrated that the crystalline (001) plane was parallel to the substrate. For the C60-TCNQ thin films, we found that there were grains on the film surface. STM images within the grain revealed that the well-ordered rows and terraces, and the parallel rows in different grains were generally not in the same orientation. Moreover, the grain boundary was also observed. In addition, AFM was employed to modify the organic TCNQ film surface for the application of this type of materials to information recording and storage at the nanometer scale. The nanometer holes were successfully created on the TCNQ thin film by the AFM.

Surface-confined formation of conjugated porphyrin-based nanostructures on Ag(111)

Nanoscale ◽  
2021 ◽  
Author(s):  
Nan Cao ◽  
Alexander Riss ◽  
Eduardo Corral-Rascon ◽  
Alina Meindl ◽  
Willi Auwärter ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Scanning Tunneling Microscopy ◽  
Scanning Tunneling ◽  
Coupling Scheme ◽  
Tunneling Microscopy ◽  
Force Microscopy ◽  
Atomic Force ◽  
Type Coupling

Porphyrin-based oligomers were synthesized from the condensation of adsorbed 4-benzaldehyde-substituted porphyrins through the formation of C=C linkages, following a McMurry-type coupling scheme. Scanning tunneling microscopy, non-contact atomic force microscopy, and...

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