Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.2035095
DC FieldValue
dc.titleSelective attachment of benzaldehyde on Si (100) -2×1: Structure, selectivity, and mechanism
dc.contributor.authorHuang, H.G.
dc.contributor.authorZhang, Y.P.
dc.contributor.authorCai, Y.H.
dc.contributor.authorHuang, J.Y.
dc.contributor.authorYong, K.S.
dc.contributor.authorXu, G.Q.
dc.date.accessioned2014-06-23T05:48:48Z
dc.date.available2014-06-23T05:48:48Z
dc.date.issued2005-09-08
dc.identifier.citationHuang, H.G., Zhang, Y.P., Cai, Y.H., Huang, J.Y., Yong, K.S., Xu, G.Q. (2005-09-08). Selective attachment of benzaldehyde on Si (100) -2×1: Structure, selectivity, and mechanism. Journal of Chemical Physics 123 (10) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.2035095
dc.identifier.issn00219606
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/76928
dc.description.abstractThe interaction of benzaldehyde with the Si(100) surface has been investigated as a model system for understanding the interaction of conjugated π -electron systems with semiconductor surfaces. Vibrational features of chemisorbed benzaldehyde unambiguously demonstrate that the carbonyl group directly interacts with the Si surface dangling bonds, evidenced in the disappearance of the C=O stretching mode around 1713 cm-1 coupled with the retention of all vibrational signatures of its phenyl ring. X-ray photoemission spectroscopy shows that both C 1s and O 1s binding energies of the carbonyl group display large downshifts by 1.9 and 1.3 eV, respectively. Vibrational and electronic results show that the covalent attachment of benzaldehyde on Si(100) occurs in a highly selective manner through the direct interaction of both C and O atoms of the carbonyl group with a Si=Si dimer to form a four-membered Si-C-O-Si ring at the interface, leaving a nearly unperturbed phenyl ring protruding into vacuum. This conclusion is further confirmed by the observation of a predominant protrusion for benzaldehyde adsorbed on Si (100) -2×1 in scanning tunneling microscopy experiments, consistent with the predication of density-functional theory calculation. © 2005 American Institute of Physics.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1063/1.2035095
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentCHEMISTRY
dc.description.doi10.1063/1.2035095
dc.description.sourcetitleJournal of Chemical Physics
dc.description.volume123
dc.description.issue10
dc.description.page-
dc.description.codenJCPSA
dc.identifier.isiut000231886000033
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