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Unit cell Essay Topics & Paper Examples

The Unit Cell

In the case of protein structures, the length of the lattice constants may be 100 A or higher. A crystal structure is generally described using the types, as well as locations of all the constituent atoms in the unit cell. Generally, one crystal structure may be comprised of at least 1 to 1,000 atoms. Figure 1. Lattice parameters a, b and c characterize a unit cell Parameters of an atom Atoms are generally described in terms of their positions in a lattice. The positions are featured with three crystallographic axes, namely a, b and c. The lattice constants are employed as units, while the positions of the atoms are provided with fractional coordinates that are designated as x, y or…