[2P01-29] Poster session

[2P21] On-surface formation of trinuclear cobalt-cyanoarene complexes on Ag(111)

*Waka Nakanishi¹, Keisuke Sagisaka² (1. Research Center for Macromolecules and Biomaterials, National Institute for Materials Science (NIMS) (Japan), 2. Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS) (Japan))

Polynuclear metal complexes exhibit unique electronic properties arising from metal-metal interactions, while ligand-directed control of cluster nuclearity on surfaces remains largely unexplored. Here, we investigate cobalt coordination structures formed by depositing Co atoms onto cyano-functionalized molecules on Ag(111). STM observations reveal a flower-like hexameric coordination assembly as the predominant species. Based on STM analysis, we propose that this assembly contains a trinuclear cobalt core. We discuss the structural model and electronic states of this on-surface trinuclear Co-cyanoarene complex.

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