New Monolayer Architecture Constructed by Competitive Hydrogen-Bonding Force and Compression Pressure Characterized by Infrared Multiple-Angle Incidence Resolution Spectroscopy

Takeshi Hasegawa, Junzo Umemura, Changqing Li, Roger Leblanc

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

A unique monolayer that has a novel film architecture has been constructed by controlling a balance of hydrogen-bonding force and monolayer compression pressure, and the new film architecture has been characterized by infrared multiple-angle incidence resolution spectroscopy (MAIRS) that has recently been developed. The compound synthesized for the study consists of a single hydrocarbon chain and a headgroup that has three trans amide moieties. The limiting molecular area of the monolayer isotherm was approximately double that typically obtained for a single alkanoic-acid chain molecule, which suggested unusual film architecture. Then, the monolayer was transferred on a germanium substrate by the Langmuir-Blodgett film technique, and it was subjected to the infrared MAIRS analysis. The in-plane and out-of-plane mode spectra of MAIRS clearly suggested a flat alignment of interdigitated hydrogen-bonding networks and standing hydrocarbon chains with a disordered kink, which were totally consistent with a corresponding infrared reflection - absorption spectrum and the results of the isotherm measurement. The study suggests that the strongly correlated physical parameters are useful to develop a new film architecture.

Original languageEnglish
Pages (from-to)11996-12002
Number of pages7
JournalJournal of Physical Chemistry B
Volume107
Issue number43
StatePublished - Oct 30 2003

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Monolayers
Hydrogen bonds
incidence
Spectroscopy
Infrared radiation
hydrogen
Hydrocarbons
spectroscopy
Isotherms
isotherms
hydrocarbons
Germanium
Langmuir Blodgett films
infrared reflection
Langmuir-Blodgett films
Carboxylic acids
Amides
amides
Absorption spectra
germanium

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

New Monolayer Architecture Constructed by Competitive Hydrogen-Bonding Force and Compression Pressure Characterized by Infrared Multiple-Angle Incidence Resolution Spectroscopy. / Hasegawa, Takeshi; Umemura, Junzo; Li, Changqing; Leblanc, Roger.

In: Journal of Physical Chemistry B, Vol. 107, No. 43, 30.10.2003, p. 11996-12002.

Research output: Contribution to journalArticle

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