On-surface preparation of coordinated lanthanide-transition-metal clusters

Jing Liu, Jie Li, Zhen Xu, Xiong Zhou, Qiang Xue, Tianhao Wu, Mingjun Zhong, Ruoning Li, Rong Sun, Ziyong Shen, Hao Tang, Song Gao, Bingwu Wang, Shimin Hou and Yongfeng Wang ()
Additional contact information
Jing Liu: Peking University
Jie Li: Peking University
Zhen Xu: Peking University
Xiong Zhou: Peking University
Qiang Xue: Peking University
Tianhao Wu: Peking University
Mingjun Zhong: Peking University
Ruoning Li: Peking University
Rong Sun: Peking University
Ziyong Shen: Peking University
Hao Tang: CEMES, UPR CNRS 8011
Song Gao: Beijing Academy of Quantum Information Sciences
Bingwu Wang: Peking University
Shimin Hou: Peking University
Yongfeng Wang: Peking University

Nature Communications, 2021, vol. 12, issue 1, 1-10

Abstract: Abstract The study of lanthanide (Ln)-transition-metal (TM) heterometallic clusters which play key roles in various high-tech applications is a rapid growing field of research. Despite the achievement of numerous Ln-TM cluster compounds comprising one Ln atom, the synthesis of Ln-TM clusters containing multiple Ln atoms remains challenging. Here, we present the preparation and self-assembly of a series of Au-bridged heterometallic clusters containing multiple cerium (Ce) atoms via on-surface coordination. By employing different pyridine and nitrile ligands, the ordered coordination assemblies of clusters containing 2, 3 and 4 Ce atoms bridged by Au adatoms are achieved on Au(111) and Au(100), as revealed by scanning tunneling microscopy. Density functional theory calculations uncover the indispensable role of the bridging Au adatoms in constructing the multi-Ce-containing clusters by connecting the Ce atoms via unsupported Ce-Au bonds. These findings demonstrate on-surface coordination as an efficient strategy for preparation and organization of the multi-Ln-containing heterometallic clusters.

Date: 2021
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DOI: 10.1038/s41467-021-21911-z

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