Textbook in PDF format

This book examines around 400 of the most striking examples of structural studies of free molecules―selected and analyzed by virtue of the unique molecular complexity and novelty of the experimental techniques used. The properties of chemical, pharmaceutical, and biological compounds depend mainly on their molecular structure, the determination of which is of fundamental interest. Featuring high-quality structural data determined using modern techniques in electron diffraction and high-resolution spectroscopy, the book is an indispensable resource for graduate students and professional scientists specializing in structural chemistry and other relevant fields.
Introduction
Quantum-Chemical Methods
Rovibrational Spectroscopy and Structure of Diatomic Molecules
Rotational Constants of a Polyatomic Molecule
Equilibrium Structures of Semirigid Molecules from the Rotational Constants
Structure of Non-rigid Molecules by Spectroscopic Methods
Equilibrium Molecular Structure as Determined by Gas-Phase Electron Diffraction
Other Methods, Mainly for the X–H Bond (X = C, N, O)
Database with Equilibrium Structures of Free Molecules