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Applications

I. David Brown.

in The Chemical Bond in Inorganic Chemistry

September 2016; p ublished online November 2016 .

Chapter. Subjects: Crystallography; Condensed Matter Physics. 16022 words.

The competition between chemical and spatial constraints leads to the unusual properties of many materials that have been analysed using the bond valence model. Applications are found in...

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The Basics of Crystallography and Diffraction

Christopher Hammond.

May 2015; p ublished online August 2015 .

Book. Subjects: Crystallography; Condensed Matter Physics. 544 pages.

This book provides an introduction to crystallography, light, X-ray, and electron diffraction. The book also shows, by historical and biographical references, how the subject has developed...

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The Bond Valence Model

I. David Brown.

in The Chemical Bond in Inorganic Chemistry

September 2016; p ublished online November 2016 .

Chapter. Subjects: Crystallography; Condensed Matter Physics. 13468 words.

The bond valence model provides the tools needed for a practical implementation of the flux theory. These include the empirical bonding strengths of atoms, i.e. Lewis acid and base...

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Bravais lattices and crystal systems

Christopher Hammond.

in The Basics of Crystallography and Diffraction

May 2015; p ublished online August 2015 .

Chapter. Subjects: Crystallography; Condensed Matter Physics. 4788 words.

Chapter 3 describes the fourteen Bravais (space) lattices. It looks at centro and non-centrosymmetric (enantiomorphous and non-enantiomorphous) point groups and geometrical relations...

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Cation Coordination Number

I. David Brown.

in The Chemical Bond in Inorganic Chemistry

September 2016; p ublished online November 2016 .

Chapter. Subjects: Crystallography; Condensed Matter Physics. 5086 words.

The coordination number serves as a measure of the size of an atom but many atoms adopt a range of coordination numbers. The relative sizes of the two bonded atoms determines the largest...

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The Chemical Bond in Inorganic Chemistry

I. David Brown.

September 2016; p ublished online November 2016 .

Book. Subjects: Crystallography; Condensed Matter Physics. 336 pages.

The bond valence model is a version of the ionic model in which the chemical constraints are expressed in terms of localized chemical bonds formed by the valence charge of the atoms....

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Chemical Implications of the Bond Valence Model

I. David Brown.

in The Chemical Bond in Inorganic Chemistry

September 2016; p ublished online November 2016 .

Chapter. Subjects: Crystallography; Condensed Matter Physics. 5624 words.

The success of chemical bond models can be ascribed to the similarity between the properties of the chemical bond and those of the electrostatic flux (bond flux), but flux theory and...

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Crystal symmetry

Christopher Hammond.

in The Basics of Crystallography and Diffraction

May 2015; p ublished online August 2015 .

Chapter. Subjects: Crystallography; Condensed Matter Physics. 13255 words.

Chapter 4 is about symmetry and crystal habit. It looks at thirty-two crystal classes; centres and inversion axes of symmetry; crystal symmetry and properties; translational symmetry...

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Crystals and crystal structures

Christopher Hammond.

in The Basics of Crystallography and Diffraction

May 2015; p ublished online August 2015 .

Chapter. Subjects: Crystallography; Condensed Matter Physics. 19507 words.

This first chapter considers the nature of the crystalline state by constructing crystal structures. It then moves on to look at interstitial, covalent and ionic structures, stacking...

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Describing lattice planes and directions in crystals

Christopher Hammond.

in The Basics of Crystallography and Diffraction

May 2015; p ublished online August 2015 .

Chapter. Subjects: Crystallography; Condensed Matter Physics. 7969 words.

Chapter 5 considers indexing lattice planes and directions, relating to Miller indices and zone axis symbols. It also considers lattice plane spacings, relating to Miller indices and Laue...

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