Please use this identifier to cite or link to this item:
|Title:||Dry synthesis of triple cumulative double bonds (C=C=C=N) on Si(111)-7 × 7 surfaces|
|Citation:||Huang, H.G., Xiang, C.L., Ning, Y.S., Huang, J.Y., Ang, S.G., Xu, G.Q. (2005-10-20). Dry synthesis of triple cumulative double bonds (C=C=C=N) on Si(111)-7 × 7 surfaces. Journal of Physical Chemistry B 109 (41) : 19296-19300. ScholarBank@NUS Repository. https://doi.org/10.1021/jp053158k|
|Abstract:||The interactions of cyanoacetylene and diacetylene with a Si(111)-7 × 7 surface have been studied as model systems to mechanistically understand the chemical binding of unsaturated organic molecules to diradical-like silicon dangling bonds. Vibrational studies show that cyanoacetylene mainly binds to the surface through a diradical reaction involving both cyano and C≡C groups with an adjacent adatom-rest atom pair at 110 K, resulting in an intermediate containing triple cumulative double bonds (C=C=C=N). On the other hand, diacetylene was shown to the covalently attached to Si(111)-7 × 7 only through one of its C≡C groups, forming an enynic-like structure with a C=C-C≡C skeleton. These chemisorbed species containing triple cumulative double bonds (C=C=C=N) and C=C-C≡C may be employed as precursors (or templates) for further construction of bilayer organic films on the semiconductor surfaces. © 2005 American Chemical Society.|
|Source Title:||Journal of Physical Chemistry B|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Jan 16, 2019
WEB OF SCIENCETM
checked on Jan 9, 2019
checked on Jan 12, 2019
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.