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Diamantane Suspended Single Copper Atoms

Gao, Hong-Ying; Šekutor, Marina; Liu, Lacheng; Timmer, Alexander; Schreyer, Hannah; Mönig, Harry; Amirjalayer, Saeed; Fokina, A. Natalie; Studer, Armido; Schreiner, R. Peter; Fuchs, Harald (2019) Diamantane Suspended Single Copper Atoms. Journal of the American Chemical Society, 141 (1). pp. 315-322. ISSN 0002-7863

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Single chains of metal atoms are expected to be perfect one-dimensional nanowires in nanotechnology, due to their quantum nature including tunable electronic or spin coupling strengths. However, it is still rather difficult to fabricate such nanowires with metallic atoms under directional and separation control. Here, we succeeded in building higher- order single diamondoid-chains from the lower- order chains using a chemically well-controlled approach that employs diamondoids on metal surfaces. This approach results in higher-order diamondoid double chains by linking two neighboring single chains, and ultimately forms a central chain consisting of single Cu atoms suspended by the diamantane framework. The suspended Cu atoms are placed above the metal surface with a periodic distance of 0.67 ± 0.01 nm. Our bottom-up approach will allow detailed experimental investigations of the properties of these exciting suspended metal atoms (for example, quantized conductance, spin coupling, as well as transfer, etc.). Furthermore, we also identified different spatial configurations on the metal surfaces in on- surface reaction processes using high- resolution AFM imaging and density functional theory computations. Our findings broaden the on-surface synthesis concept from 2D planar aromatic molecules to 3D bulky aliphatic molecules.

Item Type: Article
Uncontrolled Keywords: diamondoids ; decarboxylation ; nanodiamonds ; surface science
Subjects: NATURAL SCIENCES > Chemistry
NATURAL SCIENCES > Chemistry > Organic Chemistry
Divisions: Division of Organic Chemistry and Biochemistry
Depositing User: Marina Šekutor
Date Deposited: 04 Dec 2020 08:38
DOI: 10.1021/jacs.8b10067

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