@inproceedings{41c9ebce61494351a3dff2d6c080f6fc,
title = "In-situ infrared kinetic study of multistep chemical modifications of organic monolayers at silicon surfaces",
abstract = "The reaction of activation of acid-terminated organic monolayers grafted on (111)Si surfaces into succinimidyl-ester terminated monolayers by treatment in N-ethyl-N'-(3-dimethylaminopropyl)-carbodiimide (EDC) and N-hydroxysuccinimide (NHS) has been studied by infrared spectroscopy and its kinetics have been followed in situ. The reaction exhibits non exponential kinetics, with an initial fast rise in the appearance of succinimidyl ester followed by a long reaction tail. The origin of this behavior can be ascribed either to the existence of a fast reaction pathway involving anhydride formation, or to the rate limitation by steric hindrance effects. The subsequent amidation of the succinimidyl ester layers by a primary amine has been studied similarly. Here, the kinetics are found to be exponential, but the reaction rate exhibits a sublinear dependence on the amine concentration. This behavior is ascribed to the effects of electrostatic interactions on the adsorption of the protonated amine onto the Si surface prior to reaction.",
author = "L. Touahir and A. Moraillon and S. Sam and Gouget-Laemmel, \{A. C.\} and P. Allongue and Chazalviel, \{J. N.\} and \{De Villeneuve\}, \{C. Henry\} and F. Ozanam",
year = "2009",
month = jan,
day = "1",
doi = "10.1149/1.3120708",
language = "English",
isbn = "9781566777117",
series = "ECS Transactions",
publisher = "Electrochemical Society Inc.",
number = "3",
pages = "283--292",
booktitle = "ECS Transactions - State-of-the-Art Program on Compound Semiconductors 50 (SOTAPOCS 50)and Processes at the Semiconductor Solution Interface 3",
edition = "3",
note = "50th State-of-the-Art Symposium on Compound Semiconductors, SOTAPOCS 50 and 3rd International Symposium on Processes at the Semiconductor-Solution Interface, PSSI 3 - 215th ECS Meeting ; Conference date: 24-05-2009 Through 29-05-2009",
}