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With the advent of X-ray diffraction and crystal structure
determination in 1912 researchers in physics and chemistry began
investigating the problem of crystal co hesion, i. e., on the
question of what holds crystals together. The names of M. Born, E.
Madelung, P. P. Ewald, F. Bloch, E. P. Wigner, and J. E. Mayer are,
in particular, associated with the pre-1940 work on the cohesion of
inorganic lattices. The advent of digital computers brought along
great advances in the detailed understanding of ionic crystals,
molecular crystals, and metals. The work of P. O. Lowdin and r A.
I. Kitaigorodosky are seminal i these more recent advances. This
volume is a collection of specialist reports on a subset of the
general problem of crystal cohesion. It is intended for researchers
and advanced students in solid-state chemistry and physics, and
biochemistry. WILLIAMS reports on the mole cule-independent
empirical parameters for dispersion and repulsion that explain, and
can predict, the cohesive energy of neutral organic lattices.
MOMANY applies similar procedures to the conformational energy
problem and shows how they can be used for the pharmacological
problems of polypeptide drug design. METZGER uses
quantum-mechanical molecule-dependent atom-in-molecule charges,
dipole moments, and polarizabilities to study the cohesion of
organic ionic (semiconducting) and par tially ionic (metallic)
lattices. SILVERMAN emphasizes, with quantum-mechanical dimer
calculations, the importance of dispersive interactions for the
observed stacking modes in organic metallic lattices."
This is a reproduction of a book published before 1923. This book
may have occasional imperfections such as missing or blurred pages,
poor pictures, errant marks, etc. that were either part of the
original artifact, or were introduced by the scanning process. We
believe this work is culturally important, and despite the
imperfections, have elected to bring it back into print as part of
our continuing commitment to the preservation of printed works
worldwide. We appreciate your understanding of the imperfections in
the preservation process, and hope you enjoy this valuable book.
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