Substrate-Modulated Synthesis of Metal-Organic Hybrids by Tunable Multiple Aryl-Metal Bonds.
- Qigang Zhong, Kaifeng Niu, L. Chi
- Materials Science, ChemistryJournal of the American Chemical Society
- 20 April 2022
Assembly of semiconducting organic molecules with multiple aryl-metal covalent bonds into stable one- and two-dimensional (1D and 2D) metal-organic frameworks represents a promising route to the…
Surface-controlled reversal of the selectivity of halogen bonds
- J. Tschakert, Qigang Zhong, D. Ebeling
- Chemistry, Materials ScienceNature Communications
- 6 November 2020
This work presents an approach for controlling the 2D self-assembly process of organic molecules by adsorption to reactive vs. inert metal surfaces by reversing the selectivity of bonding sites, which is interesting for future applications.
Hierarchical Dehydrogenation Reactions on a Copper Surface.
The one-by-one scission of the X-H bonds of aromatic amines in a controlled fashion on the Cu(111) surface is realized, paving the way for connecting molecules into complex structures in a more reliable and predictable manner.
Benzo-Fused Periacenes or Double Helicenes? Different Cyclodehydrogenation Pathways on Surface and in Solution
It is demonstrated that the adsorption of tetranaphthyl-p-terphenyl precursors on metal surfaces can completely change the cyclodehydrogenation route and lead to obtaining planar benzo-fused perihexacenes rather than double helicenes during solution synthesis.
Constructing covalent organic nanoarchitectures molecule by molecule via scanning probe manipulation
- Qigang Zhong, A. Ihle, Sebastian Ahles, H. Wegner, A. Schirmeisen, D. Ebeling
- ChemistryNature Chemistry
- 2 September 2021
An approach has been developed for building low-dimensional covalent architectures block by block on a surface by highly selective tip-induced intermolecular reactions for tuning the properties of the quantum materials.
Noncontact atomic force microscopy: Bond imaging and beyond
Symmetry breakdown of 4,4″-diamino-p-terphenyl on a Cu(111) surface by lattice mismatch
It is demonstrated that adsorption of 4,4″-diamino-p-terphenyl on a metal surface leads to a dissymmetric binding affinity, which is exploited for side-preferential attachment of 2-triphenylenecarbaldehyde in a symmetric molecule with identical functional groups.
Chemical bond imaging using higher eigenmodes of tuning fork sensors in atomic force microscopy
We demonstrate the ability of resolving the chemical structure of single organic molecules using non-contact atomic force microscopy with higher normal eigenmodes of quartz tuning fork sensors. In…
Adsorption Structure of Mono- and Diradicals on a Cu(111) Surface: Chemoselective Dehalogenation of 4-Bromo-3″-iodo- p-terphenyl.
This work shows the selective dehalogenation of 4-bromo-3″-iodo- p-terphenyl on the Cu(111) surface using bond imaging atomic force microscopy with CO-functionalized tips and determines the orientation and position of the pristine molecules as well as adsorbed mono/diradicals and the halogens.