Please use this identifier to cite or link to this item:
Title: Si-C(N) σ Linkages and N → Si Dative Bonding at Pyridine/Si(111)-7 × 7
Authors: Tao, F.
Lai, Y.H. 
Xu, G.Q. 
Issue Date: 20-Jan-2004
Citation: Tao, F., Lai, Y.H., Xu, G.Q. (2004-01-20). Si-C(N) σ Linkages and N → Si Dative Bonding at Pyridine/Si(111)-7 × 7. Langmuir 20 (2) : 366-368. ScholarBank@NUS Repository.
Abstract: We experimentally demonstrated that pyridine/Si(111)-7×7 can act as an electron donor/acceptor pair as a result of the charge transfer from the electron-rich N atom of pyridine to the electron-deficient adatom of the Si surface, evidenced by the upshift of 1.8 eV (state A) for the N(1s) core level upon the formation of a datively bonded complex compared to physisorbed molecules. Another state (B) whose N(1s) binding energy downshifts by 1.2 eV was assigned to an adduct through Si-C and Si-N covalent linkages, formed via a [4 + 2]-like addition mechanism on Si(111)-7 × 7. Binding molecules through the formation of the dative bond resulted from significant electron transfer opens a new approach for the creation of Si-based molecular architectures and modification of semiconductor interfacial properties with unsaturated organic molecules.
Source Title: Langmuir
ISSN: 07437463
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.


checked on May 10, 2018


checked on Dec 31, 2018

Page view(s)

checked on Oct 27, 2019

Google ScholarTM


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.