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Conformational behavior of single an...

Elmore, Douglas Leon.

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Conformational behavior of single and binary component monolayers at the air-water interface: Development and application of two-dimensional infrared spectroscopy.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Conformational behavior of single and binary component monolayers at the air-water interface: Development and application of two-dimensional infrared spectroscopy./
Author:	Elmore, Douglas Leon.
Description:	182 p.
Notes:	Director: Richard A. Dluhy.
Contained By:	Dissertation Abstracts International62-09B.
Subject:	Chemistry, Analytical. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3025284
ISBN:	0493370471

Conformational behavior of single and binary component monolayers at the air-water interface: Development and application of two-dimensional infrared spectroscopy.
Elmore, Douglas Leon.

Conformational behavior of single and binary component monolayers at the air-water interface: Development and application of two-dimensional infrared spectroscopy. - 182 p.

Director: Richard A. Dluhy.

Thesis (Ph.D.)--University of Georgia, 2001.

Chapters III–VI of this dissertation are composed of individual manuscripts which have been or will be submitted to scholarly journals.

ISBN: 0493370471Subjects--Topical Terms:

586156
Chemistry, Analytical.

Conformational behavior of single and binary component monolayers at the air-water interface: Development and application of two-dimensional infrared spectroscopy.
LDR:03529nam 2200313 a 45 001 932564
005 20110505
008 110505s2001 eng d
020 $a 0493370471
035 $a (UnM)AAI3025284
035 $a AAI3025284
040 $a UnM $c UnM
100 1 $a Elmore, Douglas Leon. $3 1256304
245 1 0 $a Conformational behavior of single and binary component monolayers at the air-water interface: Development and application of two-dimensional infrared spectroscopy.
300 $a 182 p.
500 $a Director: Richard A. Dluhy.
500 $a Source: Dissertation Abstracts International, Volume: 62-09, Section: B, page: 4029.
502 $a Thesis (Ph.D.)--University of Georgia, 2001.
520 $a Chapters III–VI of this dissertation are composed of individual manuscripts which have been or will be submitted to scholarly journals.
520 $a In chapters III and IV, the LE/LC phase transition for a DPPC Langmuir monolayer was studied using IRRAS and 2D IR correlation analysis. The surface pressure-dependent 2D IR spectra were compared with simulated 2D IR spectra. The following conclusions were drawn: (1) The IRRAS spectra collected in the low pressure region (LE and LE/LC region), are best modeled by two overlapped peaks correlated with ordered and disordered conformational states of the monolayer film. (2) The IRRAS spectra collected in the high pressure region, which reflects the LC phase of the monolayer isotherm, are best modeled by a single peak, which undergoes a minor frequency shift correlated with the gradual packing of the LC structure.
520 $a In chapter V, a modified 2D IR method called βν correlation analysis is introduced, which is applicable to thermodynamic phase transitions. In a βν correlation analysis the degree of coherence between signal variations and the sequence of spectral events are determined quantitatively in a discrete set of dynamic spectra. In this method, a dynamic spectral variation [<italic>f</italic>(ν, <italic>n</italic>)] is cross-correlated with a sine function [<italic>g</italic>(<italic>n</italic>)]. Correlation results reveal the degree of coherence between signal variations and the sequence of spectral events. Interpretation of the results is based on a model, which we call the ‘phase transition model’. Errors caused by overlapping bands in dynamic IR spectra are investigated. Finally an application of βν correlation analysis to the solid-solid phase transition (“rotator” transition) of <italic>n</italic>-nonadecane (<italic>n</italic>-C19 H40) is presented.
520 $a In chapter VI, IRRAS was used to study the surface pressure-dependent behavior of phospholipid acyl chain structure in an ideal and a non-ideal monolayer mixture spread at the air-water interface. The IRRAS spectra were interpreted using βν correlation analysis. β<italic>e</italic> values for the methyl and methylene stretching vibrations were explained by considering the location of <italic>gauche</italic> defects in the acyl chains of the individual components. β<italic>e</italic> values were also used to determine relative rates of conformational ordering.
590 $a School code: 0077.
650 4 $a Chemistry, Analytical. $3 586156
650 4 $a Chemistry, Physical. $3 560527
690 $a 0486
690 $a 0494
710 2 0 $a University of Georgia. $3 515076
773 0 $t Dissertation Abstracts International $g 62-09B.
790 $a 0077
790 1 0 $a Dluhy, Richard A., $e advisor
791 $a Ph.D.
792 $a 2001
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3025284