title: Exploitation of desilylation chemistry in tailor-made functionalization on diverse surfaces.
abstract: Interface engineering to attain a uniform and compact self-assembled monolayer at atomically flat surfaces plays a crucial role in the bottom-up fabrication of organic molecular devices. Here we report a promising and operationally simple approach for modification/functionalization not only at ultraflat single-crystal metal surfaces, M(111) (M=Au, Pt, Pd, Rh and Ir) but also at the highly oriented pyrolytic graphite surface, upon efficient in situ cleavage of trimethylsilyl end groups of the molecules. The obtained self-assembled monolayers are ultrastable within a wide potential window. The carbon-surface bonding on various substrates is confirmed by shell-isolated nanoparticle-enhanced Raman spectroscopy. Application of this strategy in tuning surface wettability is also demonstrated. The most valuable finding is that a combination of the desilylation with the click chemistry represents an efficient method for covalent and tailor-made functionalization of diverse surfaces.
authors.affiliation: Department of Chemistry and Biochemistry, University of Bern, CH-3012 Bern, Switzerland.
authors.forename: Yongchun
authors.initials: Y
authors.lastname: Fu
authors.affiliation: Department of Chemistry and Biochemistry, University of Bern, CH-3012 Bern, Switzerland.
authors.forename: Songjie
authors.initials: S
authors.lastname: Chen
authors.affiliation: Department of Chemistry and Biochemistry, University of Bern, CH-3012 Bern, Switzerland.
authors.forename: Akiyoshi
authors.initials: A
authors.lastname: Kuzume
authors.affiliation: Department of Chemistry and Biochemistry, University of Bern, CH-3012 Bern, Switzerland.
authors.forename: Alexander
authors.initials: A
authors.lastname: Rudnev
authors.affiliation: Department of Chemistry and Biochemistry, University of Bern, CH-3012 Bern, Switzerland.
authors.forename: Cancan
authors.initials: C
authors.lastname: Huang
authors.affiliation: Department of Chemistry and Biochemistry, University of Bern, CH-3012 Bern, Switzerland.
authors.forename: Veerabhadrarao
authors.identifier: 000000024361741X
authors.initials: V
authors.lastname: Kaliginedi
authors.affiliation: Department of Chemistry and Biochemistry, University of Bern, CH-3012 Bern, Switzerland.
authors.forename: Masoud
authors.initials: M
authors.lastname: Baghernejad
authors.affiliation: Department of Chemistry and Biochemistry, University of Bern, CH-3012 Bern, Switzerland.
authors.forename: Wenjing
authors.identifier: 0000000340806175
authors.initials: W
authors.lastname: Hong
authors.affiliation: Department of Chemistry and Biochemistry, University of Bern, CH-3012 Bern, Switzerland.
authors.forename: Thomas
authors.initials: T
authors.lastname: Wandlowski
authors.affiliation: Department of Chemistry and Biochemistry, University of Bern, CH-3012 Bern, Switzerland.
authors.forename: Silvio
authors.initials: S
authors.lastname: Decurtins
authors.affiliation: Department of Chemistry and Biochemistry, University of Bern, CH-3012 Bern, Switzerland.
authors.forename: Shi-Xia
authors.identifier: 0000000161044320
authors.initials: SX
authors.lastname: Liu