The chemisorption of methylhydrazine on Pd/Al2O3: evidence for the preparation of surface bound alkyldiazenato (CH3
- 作者：Albert ; Mark R.
- 关键词：Methylhydrazine ; Methyldiazenato ; Infrared spectroscopy ; Surface chemical reaction ; Palladium
- 刊名：Applied Surface Science
- 出版年：2000
- 期刊代码：6_01694332
- 类别：ms
- 出版时间：May 1, 2000
- 卷：158
- 期：1-2
- 页码：120-126
- 文件大小：104 K
摘要
Qualitative transmission infrared evidence is presented to show that the adsorption of methylhydrazine (H3C---NH---NH2) on Pd/Al2O3 at 325 K leads to the formation of a methyldiazenato (H3C---NN+) surface fragment. Although methylhydrazine contains only single bonds, its adsorption at 325 K leads to the appearance of a vibrational peak near 1950 cm−1 where peaks for triple bonds are uniquely found. This proposed structural change is consistent with organometallic chemistry literature reports that describe the products of similar alkylhydrazine reactions with metal complexes as alkyldiazenato ligands. Literature reports of similar surface reactivity exclude alternate interpretations. This result illustrates how interesting stoichiometric processes on surfaces can be identified through the study of precedents within the organometallic chemistry literature.