Diamond's cubic structure is in the Fd 3 m space group (space group 227), which follows the face-centered cubic Bravais lattice.

2022年11月24日 · The diamond cubic structure is tetrahedrally coordinated, which means that each atom has 4 bonds. That’s why the other elements that form diamond cubic crystals are also in group 14. Silicon, germanium, and α-tin can form the diamond cubic structure.

C is diamond structured and crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. C is bonded to four equivalent C atoms to form corner-sharing CC4 tetrahedra. All C–C bond lengths are 1.55 Å.

2018年6月4日 · The packing fraction measures the ratio of the volume of atoms in a cell compared to the total volume of a cell. Since the diamond lattice is face-centered cubic, the equation can easily be solved by making substitutions. Calculate the packing fraction = (N atoms) x (V atom) / V unit cell…

The atoms in the diamond structure have $c_1 = 4$ nearest neighbours (coordination number) at a distance of $d_{c_1} = 2r = \frac{\sqrt{3}}{4}a$ as discussed above and $c_2 = 12$ next-nearest neighbours at the neighboured faces of the cube with a distance of $d_{c_2} = \frac{1}{\sqrt{2}}$.

2016年10月1日 · This picture by Greg Egan shows the pattern of carbon atoms in a diamond, called the ‘diamond cubic’. Each atom is bonded to four neighbors. This pattern is found not just in carbon but also other elements in the same column of …

The crystal structure of diamond is equivalent to a face-centred cubic (FCC) lattice, with a basis of two identical carbon atoms: one at (0, 0, 0) and the other at (1/4, 1/4, 1/4), where the coordinates are given as fractions along the cube sides.

In cubic semiconductors such as Si or Ge the two atoms of the basis are identical and the structure is called the diamond structure. If the two basis atoms are different, the structure is called the zinc-blende structure.

2022年8月28日 · The diamond cubic structure consists of two interpenetrating face-centered cubic lattices, with one offset 1/4 of a cube along the cube diagonal. It may also be described as face centered cubic lattice in which half of the tetrahedral sites are filled while all the octahedral sites remain vacant.

2025年1月17日 · At the heart of a sparkling diamond lies a remarkable atomic structure known as the diamond cubic unit cell. This intricate arrangement consists of two interpenetrating face-centered cubic lattices displaced by one-quarter of the body diagonal, creating two distinct types of atoms: carbon atoms arranged tetrahedrally and octahedrally, respectively.