Abstract
Accumulated Langmuir-Blodgett (LB) films that consist of two layers of barbituric acid (BA) and triaminotriazine (TAZ) derivatives (C18BA and 2C18TAZ) were deposited at various surface pressures on a gold-evaporated glass slide covered with a deuterated cadmium stearate (CdSt-d35) monolayer. The two-monolayer LB films (the CdSt-d35 layer is considered to be a part of the substrate) were measured by infrared reflection-absorption (IRRA) spectrometry to investigate the hydrogen-bonding network formed between the two layers. The most notable results were given by the LB film that has the layer configuration of IR// C18BA/2C18TAZ/CdSt-d35/Au. The C18BA layer was deposited at various surface pressures on the 2C18TAZ monolayer. Depending on the surface pressure, the wavenumber of the C=O stretching vibration band (v-(C=O)), derived from BA, showed drastic change. At 20 mN m-1, the C=O groups were found to be in non-hydrogen bonded state (1755 cm-1) to a large extent. The non-hydrogen bonded C=O groups are, in general, rarely seen for the interacted BA/TAZ system. The extraordinary non-hydrogen bonded C=O groups were explained readily by a novel schematic model that was estimated through the molecular orientational analysis. In consequent, the film-to-film interaction is found to give a quite unique hydrogen bonding network structure.
| Original language | English |
|---|---|
| Pages (from-to) | 7505-7513 |
| Number of pages | 9 |
| Journal | Journal of Physical Chemistry B |
| Volume | 103 |
| Issue number | 35 |
| State | Published - Sep 2 1999 |
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- Physical and Theoretical Chemistry
Cite this
Hydrogen bonding network formed between accumulated Langmuir-Blodgett films of barbituric acid and triaminotriazine derivatives. / Hasegawa, Takeshi; Hatada, Yuko; Nishijo, Jujiro; Umemura, Junzo; Huo, Qun; Leblanc, Roger.
In: Journal of Physical Chemistry B, Vol. 103, No. 35, 02.09.1999, p. 7505-7513.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Hydrogen bonding network formed between accumulated Langmuir-Blodgett films of barbituric acid and triaminotriazine derivatives
AU - Hasegawa, Takeshi
AU - Hatada, Yuko
AU - Nishijo, Jujiro
AU - Umemura, Junzo
AU - Huo, Qun
AU - Leblanc, Roger
PY - 1999/9/2
Y1 - 1999/9/2
N2 - Accumulated Langmuir-Blodgett (LB) films that consist of two layers of barbituric acid (BA) and triaminotriazine (TAZ) derivatives (C18BA and 2C18TAZ) were deposited at various surface pressures on a gold-evaporated glass slide covered with a deuterated cadmium stearate (CdSt-d35) monolayer. The two-monolayer LB films (the CdSt-d35 layer is considered to be a part of the substrate) were measured by infrared reflection-absorption (IRRA) spectrometry to investigate the hydrogen-bonding network formed between the two layers. The most notable results were given by the LB film that has the layer configuration of IR// C18BA/2C18TAZ/CdSt-d35/Au. The C18BA layer was deposited at various surface pressures on the 2C18TAZ monolayer. Depending on the surface pressure, the wavenumber of the C=O stretching vibration band (v-(C=O)), derived from BA, showed drastic change. At 20 mN m-1, the C=O groups were found to be in non-hydrogen bonded state (1755 cm-1) to a large extent. The non-hydrogen bonded C=O groups are, in general, rarely seen for the interacted BA/TAZ system. The extraordinary non-hydrogen bonded C=O groups were explained readily by a novel schematic model that was estimated through the molecular orientational analysis. In consequent, the film-to-film interaction is found to give a quite unique hydrogen bonding network structure.
AB - Accumulated Langmuir-Blodgett (LB) films that consist of two layers of barbituric acid (BA) and triaminotriazine (TAZ) derivatives (C18BA and 2C18TAZ) were deposited at various surface pressures on a gold-evaporated glass slide covered with a deuterated cadmium stearate (CdSt-d35) monolayer. The two-monolayer LB films (the CdSt-d35 layer is considered to be a part of the substrate) were measured by infrared reflection-absorption (IRRA) spectrometry to investigate the hydrogen-bonding network formed between the two layers. The most notable results were given by the LB film that has the layer configuration of IR// C18BA/2C18TAZ/CdSt-d35/Au. The C18BA layer was deposited at various surface pressures on the 2C18TAZ monolayer. Depending on the surface pressure, the wavenumber of the C=O stretching vibration band (v-(C=O)), derived from BA, showed drastic change. At 20 mN m-1, the C=O groups were found to be in non-hydrogen bonded state (1755 cm-1) to a large extent. The non-hydrogen bonded C=O groups are, in general, rarely seen for the interacted BA/TAZ system. The extraordinary non-hydrogen bonded C=O groups were explained readily by a novel schematic model that was estimated through the molecular orientational analysis. In consequent, the film-to-film interaction is found to give a quite unique hydrogen bonding network structure.
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M3 - Article
AN - SCOPUS:0001183345
VL - 103
SP - 7505
EP - 7513
JO - Journal of Physical Chemistry B Materials
JF - Journal of Physical Chemistry B Materials
SN - 1520-6106
IS - 35
ER -