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IRRAS studies on chain orientation in the monolayers of amino acid amphiphiles at the air-water interface depending on metal complex and hydrogen bond formation with the headgroups

Article Abstract:

A study on the monolayers of N-octadecanoyl-L-alanine at the air-water interface on pure water and metal ion containing subphases is carried out by using polarized infrared reflection-absorption spectroscopy (IRRAS). The findings show that the chain conformation and tilt are closely related to the formation of intramolecular hydrogen bonds and the ionic interaction of the metal complex in the cases of Ca(super 2+) and Cu(super 2+).

Author: Xuezhong Du, Yingqiu Liang, Wangen Miao
Publisher: American Chemical Society
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2005
Taiwan, Analysis, Spectra, Hydrogen bonds, Monomolecular films, Infrared spectroscopy, Amino acids, Properties

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Molecular recognition of cytosine- and guanine-functionalized nucleophiles in the mixed monolayers at the air-water interface and Langmuir-Blodgett films

Article Abstract:

Molecular recognition of mixed nucleolipids of 1-(2-octadecyloxycarbonylethyl)cytosine and 7-(2-octadecyloxycarbonyethyl)guanine in the monolayers at the air-water interface and Langmuir-Blodgett (LB) films is investigated. A very different base orientation and intermolecular interaction in the mixed monolayers are presented in comparison to those in the monolayers on the complementary base-containing subphase.

Author: Xuezhong Du, Yingqiu Liang, Wangen Miao
Publisher: American Chemical Society
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2006
Biological Product (except Diagnostic) Manufacturing, Drugs, Guanine, Cytosine, Design and construction, Chemical properties, Atomic properties, Nucleophiles

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Roles of metal complex and hydrogen bond in molecular structures and phase behaviors of metal N-octadecanoyl-L-alaninate Langmuir-Blodgett films

Article Abstract:

The N-octadecanoyl-L-alanine Langmuir-Blodgett (LB) films deposited from aqueous subphases containing metal ions at their intrinsic pH values are examined by FTIR spectroscopy. The results indicate that hydrogen bond and metal complex play an important role in the molecular structures and phase behaviors of the metal complex LB films.

Author: Xuezhong Du, Yingqiu Liang
Publisher: American Chemical Society
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2000
Science & research, Research, Fourier transform infrared spectroscopy, Alanine

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Subjects list: Hydrogen bonding, Thin films, Multilayered, Multilayered thin films
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