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A crystallographic diad is a symmetry element in crystals that involves a twofold rotation axis. This means that if you rotate the crystal by 180 degrees around this axis, the crystal appears unchanged. Crystallographic diads are important in determining the symmetry and properties of crystals.

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1y ago

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What is crystallographic balance?

Crystallographic balance refers to the equal distribution of building blocks or units in a crystal structure, resulting in a stable and symmetric arrangement. It is important in crystallography to maintain balance in order to ensure the structural integrity and stability of the crystal. The concept of crystallographic balance is used to analyze and study the geometric arrangement of atoms or ions in a crystal lattice.


What are miller indices?

Miller indices are a symbolic notation used to describe the orientation of planes and directions in a crystal lattice. They are a set of integers (hkl) representing the intercepts of a plane or direction with the crystallographic axes. Miller indices are used in crystallography to uniquely identify specific crystallographic planes and directions.


What are some properties you can idenify an element or a compound?

Examples: chemical composition, absorption spectra, crystallographic data, X-ray diffraction data, density, melting point, hardness, color, odor and many others.


Why did Aaron Klug win The Nobel Prize in Chemistry in 1982?

The Nobel Prize in Chemistry 1982 was awarded to Aaron Klug for his development of crystallographic electron microscopy and his structural elucidation of biologically important nucleic acid-protein complexes.


How do you assign point group?

To assign a point group to a molecule, you first identify its symmetry elements such as rotation axes, mirror planes, and inversion centers. Then, use those elements to determine the point group using crystallographic tables or software. The resulting point group describes the overall symmetry of the molecule.