Direct measurement and modulation of single-molecule coordinative bonding forces in a transition metal complex

Hao, XianDanmarks Tekniske Universitet,Technical University of Denmark,Chinese Academy of Sciences (författare)

Coordination chemistry has been a consistently active branch of chemistry since Werner’s seminal theory of coordination compounds inaugurated in 1893, with the central focus on transition metal complexes. However, control and measurement of metal–ligand interactions at the single-molecule level remain a daunting challenge. Here we demonstrate an interdisciplinary and systematic approach that enables measurement and modulation of the coordinative bonding forces in a transition metal complex. Terpyridine is derived with a thiol linker, facilitating covalent attachment of this ligand on both gold substrate surfaces and gold-coated atomic force microscopy tips. The coordination and bond breaking between terpyridine and osmium are followed in situ by electrochemically controlled atomic force microscopy at the single-molecule level. The redox state of the central metal atom is found to have a significant impact on the metal–ligand interactions. The present approach represents a major advancement in unravelling the nature of metal–ligand interactions and could have broad implications in coordination chemistry.

Zhu, NanDanmarks Tekniske Universitet,Technical University of Denmark (författare)
Gschneidtner, Tina,1985Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)tinag (författare)
Jönsson, Elvar Ö.Danmarks Tekniske Universitet,Technical University of Denmark (författare)
Zhang, JingdongDanmarks Tekniske Universitet,Technical University of Denmark (författare)
Moth-Poulsen, Kasper,1978Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)mkasper (författare)
Wang, HongdaChinese Academy of Sciences (författare)
Thygesen, Kristian S.Danmarks Tekniske Universitet,Technical University of Denmark (författare)
Jacobsen, K. W.Danmarks Tekniske Universitet,Technical University of Denmark (författare)
Ulstrup, JensDanmarks Tekniske Universitet,Technical University of Denmark (författare)
Chi, QijinDanmarks Tekniske Universitet,Technical University of Denmark (författare)
Danmarks Tekniske UniversitetChinese Academy of Sciences (creator_code:org_t)

Ingår i:Nature Communications: Springer Science and Business Media LLC42041-17232041-1723

Av författaren/redakt...: Hao, Xian; Zhu, Nan; Gschneidtner, Ti ...; Jönsson, Elvar Ö ...; Zhang, Jingdong; Moth-Poulsen, Ka ...; visa fler...; Wang, Hongda; Thygesen, Kristi ...; Jacobsen, K. W.; Ulstrup, Jens; Chi, Qijin; visa färre...

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