Linearly Polarized IR Spectroscopy: Theory and Applications for Structural Analysis, 1st Edition (Paperback) book cover

Linearly Polarized IR Spectroscopy

Theory and Applications for Structural Analysis, 1st Edition

By Bojidarka Ivanova, Tsonko Kolev

CRC Press

240 pages | 145 B/W Illus.

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pub: 2019-05-13
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A technique that is useful in the study of pharmaceutical products and biological molecules, polarization IR spectroscopy has undergone continuous development since it first emerged almost 100 years ago. Capturing the state of the science as it exists today, Linearly Polarized IR Spectroscopy: Theory and Applications for Structural Analysis demonstrates how the technique can be properly utilized to obtain important information about the structure and spectral properties of oriented compounds.

The book starts with the theoretical basis of linear-dichroic infrared (IR-LD) spectroscopy and then moves on to examine the background of the orientation method of colloid suspensions in a nematic host. It explores the orientation procedure itself, experimental design, and mathematical tools for the interpretation of the IR spectroscopic patterns. Next, the authors describe the structural elucidation of inorganic and organic compounds and glasses. Finally, they discuss applications in pharmaceutical analysis and the chemistry of dyes. Filled with more than 140 illustrations along with a color insert, the book explains both the scope of the polarized IR spectroscopy method as well as its limitations.

A powerful source of information not only for specialists in IR spectroscopy, but also for those working in the field of structural analysis, this volume moves the field closer to developing an inherently classical method for the structural characterization of compounds.

Table of Contents

Linear-Dichroic Infrared (IR-LD) Spectroscopy: Background

Theoretical Prerequisites

Symmetry Analysis of Normal Vibrations and Dipole Moments of Transition Generated Therefrom

Elements and Operations of Symmetry

Symmetry Analysis of the Dipole Moments of Transition

Orientation of the Samples

Orientation in Liquid Crystal Solutions

Orientation as Suspension in Liquid Crystals

Photometrization and Processing of IR-LD Spectra: Differential Reducing Procedure

Effects in the Infrared Spectra of Crystals

Background of the Orientation Method of Colloid Suspensions in a Nematic Host

Orientation Procedure

Validation of the Orientation Procedure

Accuracy and Repeatability

The Quantitative Ratio of Liquid Crystals and Solid Samples

Preliminary Rubbing Out of the KBr Plates

Peak Function Type for the Curve-Fitting Procedure

Number of Scans in the Measurements

Experimental Design

Mathematical Tools for the Interpretation of the IR Spectroscopic Patterns

IR Spectra Subtraction

The Smoothing Procedure

Accuracy and Precision


Curve-Fitting Procedure (CFP)

Baseline Correction (BLC)

Reducing-Difference Procedure (RDP) for IR-LD Spectra Interpretation

Structural Elucidation of Inorganic Compounds and Glasses

Inorganic Compounds

R Spectroscopic Elucidation of Glasses

Structural Elucidation of Organic Compounds

Analysis of Heterocyclic Compounds

Small Biologically Active Molecules

Application in the Pharmaceutical Analysis

Analysis of Morphine Alkaloids

Application in the Chemistry of Dyes

Stilbazolium Salts

Dicyanoisophorone Derivatives

Appendix: List of Acronyms


About the Authors

Bojidarka Ivanova, Ph.D. received her M.Sc. degree in physical and theoretical chemistry in 1997 from Sofia University (St. Kl. Okhridski), Bulgaria. She earned her Ph.D. in analytical chemistry from Sofia University in 2001. Since 2003, Dr. Ivanova has been an associate professor in chemistry, holding the corresponding position at the Department of Analytical Chemistry at Sofia University.

Tsonko Kolev, D.Sc. obtained his M.Sc. degree in chemistry in 1973 at Sofia University (St. Kl. Okhridski), Bulgaria, and his Ph.D. in organic chemistry in 1982 from the Institute of Organic Chemistry, Bulgarian Academy of Sciences. His current position is head of the Department of Organic Chemistry at Plovdiv University (P. Hilendarski), Bulgaria.

Subject Categories

BISAC Subject Codes/Headings:
SCIENCE / Chemistry / Industrial & Technical
SCIENCE / Molecular Physics