The Oxidation of Diamond: The Geometry and Stretching Frequency of Carbonyl on the (100) Surface
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- 作者：Phillip John ; Neil Polwart ; Clare E. Troupe ; and John I. B. Wilson
- 刊名：Journal of the American Chemical Society
- 出版年：2003
- 出版时间：June 4, 2003
- 年：2003
- 卷：125
- 期：22
- 页码：6600 - 6601
- 全文大小：54K
- 年卷期：v.125,no.22(June 4, 2003)
- ISSN：1520-5126
文摘
Microwave plasma deposited (100) diamond films have been thermally oxidized in dry O2 between 500 and 723 
C. The roughness of a single crystalline grain following oxidation is consistent with a layer-by-layer mechanism for the removal of carbon monoxide. The resulting surface exhibits infrared absorption bands at 1731 and 905 cm-1, attributed to the stretching and bending modes of a surface bonded carbonyl group. The former is within 1 cm-1 of the structurally analogous molecule 2-adamantanone. These data are consistent with the carbonyl groups being present on diamond (100) terraces.
C. The roughness of a single crystalline grain following oxidation is consistent with a layer-by-layer mechanism for the removal of carbon monoxide. The resulting surface exhibits infrared absorption bands at 1731 and 905 cm-1, attributed to the stretching and bending modes of a surface bonded carbonyl group. The former is within 1 cm-1 of the structurally analogous molecule 2-adamantanone. These data are consistent with the carbonyl groups being present on diamond (100) terraces.