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Gaseous alkali metal halides: ionic bonds

Arne Haaland

in Molecules and Models: The molecular structures of main group element compounds

Published in print:
2008
Published Online:
May 2008
ISBN:
9780199235353
eISBN:
9780191715594
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199235353.003.0005
Subject:
Physics, Condensed Matter Physics / Materials

The evaporation of an alkali metal halide (MX) yields a mixture of monomers and smaller amounts of dimers, trimers, and tetramers. This chapter describes the monomers in terms of their electric ... More


Electric Fields and Currents in Biological Tissue

Paul L. Nunez and Ramesh Srinivasan

in Electric Fields of the Brain: The neurophysics of EEG

Published in print:
2006
Published Online:
May 2009
ISBN:
9780195050387
eISBN:
9780199865673
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195050387.003.0004
Subject:
Neuroscience, Neuroendocrine and Autonomic, Techniques

This chapter continues the physical principles of Chapter 3 in the context of biological tissue. Electrophysiology spans about five orders of magnitude of spatial scale, ranging from the ... More


The hyperfine structure of atoms and its investigation by magnetic resonance methods

Alan Corney

in Atomic and Laser Spectroscopy

Published in print:
2006
Published Online:
September 2007
ISBN:
9780199211456
eISBN:
9780191705915
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199211456.003.0018
Subject:
Physics, Atomic, Laser, and Optical Physics

This chapter develops the theory of the hyperfine structure of atoms involving nuclear magnetic dipole and electric quadrupole moments. The Zeeman effect in weak, intermediate, and strong magnetic ... More


ELECTRIC DEFLEXION AND RESONANCE EXPERIMENTS

Norman F. Ramsey

in Molecular Beams

Published in print:
1986
Published Online:
September 2007
ISBN:
9780198520214
eISBN:
9780191706325
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198520214.003.0010
Subject:
Physics, Atomic, Laser, and Optical Physics

Since molecules consist of positive and negative particles, they can have electric dipole moments when oriented in electric fields and a molecular beam can be deflected in a non-uniform electric ... More


THE REORIENTATION OF DEFECTS IN SOLIDS

A.M. Stoneham

in Theory of Defects in Solids: Electronic Structure of Defects in Insulators and Semiconductors

Published in print:
2001
Published Online:
September 2007
ISBN:
9780198507802
eISBN:
9780191709920
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198507802.003.0021
Subject:
Physics, Condensed Matter Physics / Materials

This chapter looks at the several classes of defect that can reorient between different crystal axes, either coherently or incoherently. Some such defects have an intrinsic dipole moment, like OH-, ... More


Other heteronuclear diatomic molecules: polar covalent bonds

Arne Haaland

in Molecules and Models: The molecular structures of main group element compounds

Published in print:
2008
Published Online:
May 2008
ISBN:
9780199235353
eISBN:
9780191715594
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199235353.003.0006
Subject:
Physics, Condensed Matter Physics / Materials

This chapter describes the structures of 25 heteronuclear, singly bonded diatomic molecules formed by combination of hydrogen, halogen, or alkali metal atoms (HX, HM, XX', or MM') in terms of their ... More


Electric Properties

Stephan P. A. Sauer

in Molecular Electromagnetism: A Computational Chemistry Approach

Published in print:
2011
Published Online:
December 2013
ISBN:
9780199575398
eISBN:
9780191775109
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199575398.003.0004
Subject:
Physics, Atomic, Laser, and Optical Physics

This chapter defines the most important electric properties of a molecule, the electric dipole and quadrupole moment as well as the corresponding polarizabilities, via the multipole expansion of the ... More


Structure and bonding in the gaseous dihalides and dialkyl derivatives of the Group 2 and Group 12 metals

Arne Haaland

in Molecules and Models: The molecular structures of main group element compounds

Published in print:
2008
Published Online:
May 2008
ISBN:
9780199235353
eISBN:
9780191715594
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199235353.003.0010
Subject:
Physics, Condensed Matter Physics / Materials

This chapter opens with a discussion of the difficulties of establishing unequivocally whether a monomeric, gaseous Group 2 metal dihalide has a linear or angular equilibrium structure. The ... More


The One-electron Quantum Hamiltonian in the Presence of EM Fields

Jochen Autschbach

in Quantum Theory for Chemical Applications: From Basic Concepts to Advanced Topics

Published in print:
2020
Published Online:
February 2021
ISBN:
9780190920807
eISBN:
9780197508350
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780190920807.003.0021
Subject:
Chemistry, Quantum and Theoretical Chemistry

The interaction between atoms or molecules and electromagnetic (EM) fields underlies all spectroscopic techniques and a great variety of desirable molecular properties. EM fields and EM waves are ... More


Searches for new, massive particles with AMO experiments

David DeMille

in Current Trends in Atomic Physics

Published in print:
2019
Published Online:
July 2019
ISBN:
9780198837190
eISBN:
9780191873973
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198837190.003.0002
Subject:
Physics, Atomic, Laser, and Optical Physics, Particle Physics / Astrophysics / Cosmology

These lectures aim to explain how certain types of atomic, molecular, and optical physics experiments can have a substantial impact in modern particle physics. A central pedagogical goal is to ... More


Optical processes in conjugated polymers

William Barford

in Electronic and Optical Properties of Conjugated Polymers

Published in print:
2013
Published Online:
May 2013
ISBN:
9780199677467
eISBN:
9780191757402
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199677467.003.0011
Subject:
Physics, Condensed Matter Physics / Materials

The theory of linear and non-linear optical processes in conjugated polymers is introduced. In particular, the Condon approximation, Franck-Condon factors, and exciton model are all used to develop ... More


The Structure of Liquids

W. Ronald Fawcett

in Liquids, Solutions, and Interfaces: From Classical Macroscopic Descriptions to Modern Microscopic Details

Published in print:
2004
Published Online:
November 2020
ISBN:
9780195094329
eISBN:
9780197560747
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780195094329.003.0006
Subject:
Chemistry, Physical Chemistry

It is well known from studies of the properties of matter that the liquid state is much more complex than either the gaseous or solid states. Studies of the properties of gases quickly lead to the ... More


Dipolar Gases

Lev Pitaevskii and Sandro Stringari

in Bose-Einstein Condensation and Superfluidity

Published in print:
2016
Published Online:
March 2016
ISBN:
9780198758884
eISBN:
9780191818721
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198758884.003.0025
Subject:
Physics, Condensed Matter Physics / Materials

The last chapter of the volume addresses the question of dipolar gases, which exhibit peculiar long-range and anisotropic two-body interactions. Dipolar interactions of both magnetic and electric ... More


Historical Overview

Ronald Pethig

in Dielectric Relaxation in Biological Systems: Physical Principles, Methods, and Applications

Published in print:
2015
Published Online:
August 2015
ISBN:
9780199686513
eISBN:
9780191766398
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199686513.003.0001
Subject:
Physics, Soft Matter / Biological Physics

Rudolf Höber’s dielectric experiments, between 1910 and 1913, represent the point where electrophysiology branched off into bio-dielectrics and electrical bio-impedance. He provided the first ... More


Examples of Calculations and Practical Issues

Stephan P. A. Sauer

in Molecular Electromagnetism: A Computational Chemistry Approach

Published in print:
2011
Published Online:
December 2013
ISBN:
9780199575398
eISBN:
9780191775109
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199575398.003.0013
Subject:
Physics, Atomic, Laser, and Optical Physics

This chapter illustrates the calculation of molecular electromagnetic properties with examples for calculated electric dipole moments, dipole polarizabilities, nuclear magnetic shielding constants, ... More


Introduction

M. Bordag, G. L. Klimchitskaya, U. Mohideen, and V. M. Mostepanenko

in Advances in the Casimir Effect

Published in print:
2009
Published Online:
September 2009
ISBN:
9780199238743
eISBN:
9780191716461
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199238743.003.0001
Subject:
Physics, Condensed Matter Physics / Materials, Atomic, Laser, and Optical Physics

This introductory chapter discusses the general physical foundations of the Casimir effect as manifestation of the existence of zero-point vacuum oscillations. Connections between the Casimir force, ... More


Molecular Properties

Kenneth G. Dyall and Knut Faegri

in Introduction to Relativistic Quantum Chemistry

Published in print:
2007
Published Online:
November 2020
ISBN:
9780195140866
eISBN:
9780197561744
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780195140866.003.0019
Subject:
Chemistry, Quantum and Theoretical Chemistry

Strictly speaking, in quantum mechanics a measurable property is defined as an observable connected to a self-adjoint operator. However, in common usage the term molecular property is loosely taken ... More


Study Of Soft Modes Using Infrared And Optic Techniques

M. E. LINES and A. M. GLASS

in Principles and Applications of Ferroelectrics and Related Materials

Published in print:
2001
Published Online:
February 2010
ISBN:
9780198507789
eISBN:
9780191709944
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198507789.003.0007
Subject:
Physics, Condensed Matter Physics / Materials

Lattice vibrations which involve a fluctuating electric dipole have quite different properties from non-polar vibrations. In particular, they couple directly via the dipole moment to the radiation ... More


Time-dependent observables

Carsten A. Ullrich

in Time-Dependent Density-Functional Theory: Concepts and Applications

Published in print:
2011
Published Online:
December 2013
ISBN:
9780199563029
eISBN:
9780191775130
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199563029.003.0005
Subject:
Physics, Condensed Matter Physics / Materials

This chapter gives an overview of the observables that are of interest in time-dependent density-functional theory, and how to calculate them. Two types of observables are distinguished: explicit and ... More


Spectroscopy Fundamentals

Kelly Chance and Randall V. Martin

in Spectroscopy and Radiative Transfer of Planetary Atmospheres

Published in print:
2017
Published Online:
May 2017
ISBN:
9780199662104
eISBN:
9780191748370
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780199662104.003.0005
Subject:
Physics, Geophysics, Atmospheric and Environmental Physics

This chapter provides a broad overview of the spectroscopic principles required in order to perform quantitative spectroscopy of atmospheres. It couples the details of atmospheric spectroscopy with ... More


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