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Electron diffraction (ED)

Xiaodong Zou, Sven Hovmöller, and Peter Oleynikov

in Electron Crystallography: Electron Microscopy and Electron Diffraction

Published in print:
2011
Published Online:
January 2012
ISBN:
9780199580200
eISBN:
9780191731211
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199580200.003.0005
Subject:
Physics, Crystallography: Physics

Electron diffraction comes from the combined scattering from many atoms arranged in a crystal. Bragg’s law and the Ewald sphere explain where the diffraction spots will fall on a detector and when ... More


Electron Crystallography: Electron Microscopy and Electron Diffraction

Xiaodong Zou, Sven Hovmöller, and Peter Oleynikov

Published in print:
2011
Published Online:
January 2012
ISBN:
9780199580200
eISBN:
9780191731211
Item type:
book
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199580200.001.0001
Subject:
Physics, Crystallography: Physics

This is the first textbook describing crystal structure determination (especially inorganic) from high-resolution transmission electron microscopy (HRTEM) and electron diffraction (ED). The ... More


Electron crystallography ‐ an introduction

Xiaodong Zou, Sven Hovmöller, and Peter Oleynikov

in Electron Crystallography: Electron Microscopy and Electron Diffraction

Published in print:
2011
Published Online:
January 2012
ISBN:
9780199580200
eISBN:
9780191731211
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199580200.003.0001
Subject:
Physics, Crystallography: Physics

The historical introduction covers the parallel developments in EM on inorganic and biological samples. Vainshtein, Pinsker and Zvyagin in Moscow solved structures from electron-diffraction patterns ... More


Diffraction of Electrons and Neutrons

Kannan M. Krishnan

in Principles of Materials Characterization and Metrology

Published in print:
2021
Published Online:
July 2021
ISBN:
9780198830252
eISBN:
9780191868665
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198830252.003.0008
Subject:
Physics, Condensed Matter Physics / Materials

Electron scattering, significantly stronger than that for X-rays, is sensitive to surfaces and small volumes of materials. Low-energy electron diffraction (LEED) provides information on surface ... More


Experimental methods in X‐ray and neutron crystallography

Monaco Hugo L. and Gilberto Artioli

in Fundamentals of Crystallography

Published in print:
2011
Published Online:
December 2013
ISBN:
9780199573653
eISBN:
9780191775000
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199573653.003.0005
Subject:
Physics, Crystallography: Physics, Condensed Matter Physics / Materials

This chapter discusses the experimental methods used to study the diffraction of X-rays and neutrons by crystalline materials. Although electrons are also diffracted by crystals, electron diffraction ... More


Structure refinement

Xiaodong Zou, Sven Hovmöller, and Peter Oleynikov

in Electron Crystallography: Electron Microscopy and Electron Diffraction

Published in print:
2011
Published Online:
January 2012
ISBN:
9780199580200
eISBN:
9780191731211
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199580200.003.0010
Subject:
Physics, Crystallography: Physics

Structure refinement is a way to get more accurate atomic coordinates using ED intensities. A preliminary structure obtained from HRTEM or ED data can be refined with ED or X-ray powder diffraction ... 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


3D electron crystallography

Xiaodong Zou, Sven Hovmöller, and Peter Oleynikov

in Electron Crystallography: Electron Microscopy and Electron Diffraction

Published in print:
2011
Published Online:
January 2012
ISBN:
9780199580200
eISBN:
9780191731211
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199580200.003.0011
Subject:
Physics, Crystallography: Physics

All structures are 3-dimensional, but each EM image is just a 2D projection of the 3D structure. Until recently, almost all work in the EM field has been 2D. 3D electron crystallography can be made ... More


Diffraction

Jenny Pickworth Glusker and Kenneth N. Trueblood

in Crystal Structure Analysis: A Primer

Published in print:
2010
Published Online:
November 2020
ISBN:
9780199576340
eISBN:
9780191917905
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780199576340.003.0011
Subject:
Chemistry, Crystallography: Chemistry

A common approach to crystal structure analysis by X-ray diffraction presented in texts that have been written for nonspecialists involves the Bragg equation, and a discussion in terms of ... More


Methods of study

Falko P. Netzer and Claudine Noguera

in Oxide Thin Films and Nanostructures

Published in print:
2021
Published Online:
April 2021
ISBN:
9780198834618
eISBN:
9780191872716
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198834618.003.0003
Subject:
Physics, Condensed Matter Physics / Materials, Particle Physics / Astrophysics / Cosmology

The experimental and theoretical characterization of oxide nanostructures is addressed. The experimental techniques are classified according to their information content, revealing atomic geometry, ... More


On Comparing Experimental and Calculated Structural Parameters

Lothar Schäfer and John D. Ewbank

in Molecular Orbital Calculations for Biological Systems

Published in print:
1998
Published Online:
November 2020
ISBN:
9780195098730
eISBN:
9780197560891
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780195098730.003.0010
Subject:
Chemistry, Quantum and Theoretical Chemistry

The tacit assumption underlying all science is that, of two competing theories, the one in closer agreement with experiment is the better one. In structural chemistry the same principle applies ... More


Layer packing of polymethylene chains

DOUGLAS L. DORSET

in Crystallography of the Polymethylene Chain: An Inquiry into the Structure of Waxes

Published in print:
2004
Published Online:
September 2007
ISBN:
9780198529088
eISBN:
9780191712838
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198529088.003.0002
Subject:
Physics, Crystallography: Physics

This chapter discusses energetic principles important for the close packing of linear polymethylene chains that lead to favoured layer packing arrays, revealing that a hard sphere repulsive model is ... More


Polydispersity and the paraffin chain—statement of the problem

DOUGLAS L. DORSET

in Crystallography of the Polymethylene Chain: An Inquiry into the Structure of Waxes

Published in print:
2004
Published Online:
September 2007
ISBN:
9780198529088
eISBN:
9780191712838
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198529088.003.0001
Subject:
Physics, Crystallography: Physics

This chapter introduces the problem of polydispersity for understanding properties of materials containing polymethylene chains. A model has been proposed for the assembly of molecular chains in a ... More


Scanning Electron Microscopy

Kannan M. Krishnan

in Principles of Materials Characterization and Metrology

Published in print:
2021
Published Online:
July 2021
ISBN:
9780198830252
eISBN:
9780191868665
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198830252.003.0010
Subject:
Physics, Condensed Matter Physics / Materials

A scanning electron microscope (SEM) focuses an electron beam to a sharp probe, with its diameter, which depends on the acceleration voltage and the aberration coefficients of the probe-forming lens, ... More


The surface of ice

Victor F. Petrenko and Robert W. Whitworth

in Physics of Ice

Published in print:
2002
Published Online:
February 2010
ISBN:
9780198518945
eISBN:
9780191707247
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198518945.003.0010
Subject:
Physics, Crystallography: Physics

Especially at temperatures approaching the melting point, the surface of ice has properties significantly different from the bulk, and the surface is sometimes referred to as having a ‘liquid-like ... More


Introduction

Jenny Pickworth Glusker and Kenneth N. Trueblood

in Title Pages

Published in print:
2010
Published Online:
November 2020
ISBN:
9780199576340
eISBN:
9780191917905
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780199576340.003.0009
Subject:
Chemistry, Crystallography: Chemistry

Much of our present knowledge of the architecture of molecules has been obtained from studies of the diffraction of X rays or neutrons by crystals. X rays are scattered by the electrons of atoms ... More


Micro- and noncrystalline materials

Jenny Pickworth Glusker and Kenneth N. Trueblood

in Crystal Structure Analysis: A Primer

Published in print:
2010
Published Online:
November 2020
ISBN:
9780199576340
eISBN:
9780191917905
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780199576340.003.0023
Subject:
Chemistry, Crystallography: Chemistry

The crystalline state is characterized by a high degree of internal order. There are two types of order that we will discuss here. One is chemical order, which consists of the connectivity (bond ... More


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