Analyze zinc blende cells with density based inputs. Generate tables, downloads, and quick validation steps. Built for careful crystal calculations and classroom style checks.
These values are sample references for quick testing. Results are approximate.
| Material | Method | Density (g/cm³) | Molar Mass (g/mol) | Bond Length (Å) | Z | Approx. a (Å) |
|---|---|---|---|---|---|---|
| ZnS | Density based | 4.09 | 97.44 | 2.34 | 4 | 5.4089 |
| GaAs | Density based | 5.32 | 144.645 | 2.45 | 4 | 5.6524 |
| CdTe | Density based | 5.85 | 240.01 | 2.81 | 4 | 6.4833 |
For density based calculation, use:
a = ((Z × M) / (ρ × NA))1/3
Where a is lattice parameter, Z is formula units per cell, M is molar mass, ρ is density, and NA is Avogadro’s constant.
For bond length based calculation, use:
d = (√3 / 4) × a
So the rearranged form becomes:
a = 4d / √3
Zinc blende is a cubic structure with four formula units in each unit cell. This relation is commonly used for ZnS type compounds and similar tetrahedrally coordinated crystals.
Zinc blende is a cubic crystal structure found in compounds such as ZnS, GaAs, and CdTe. The lattice parameter describes the unit cell edge length. It links crystal geometry, density, molar mass, and nearest-neighbor bonding. This calculator helps chemistry students, materials learners, and process researchers estimate the unit cell size quickly.
The density route is useful when bulk material data is known. The bond route is helpful when local structural information is available from reference data or a solved crystal model. Because the crystal is idealized in the formula, experimental values can shift with temperature, defects, doping, pressure, or rounding.
Zinc blende is a cubic crystal structure where each atom is tetrahedrally coordinated. It appears in materials like ZnS and many semiconductor compounds with similar atomic arrangements.
The conventional cubic unit cell of zinc blende contains four formula units. That is why many density based lattice parameter calculations use Z = 4 by default.
Use density in grams per cubic centimeter for the density formula shown here. If your source uses other units, convert them first for a correct result.
The nearest-neighbor bond length equals √3/4 of the lattice parameter. Rearranging gives a = 4d/√3, which this calculator uses in bond mode.
Differences can come from temperature, impurities, nonstoichiometry, pressure, rounding, or measurement uncertainty. Reference tables may also report values for specific experimental conditions.
Yes. The same cubic zinc blende geometry applies to many compounds. Enter the correct density, molar mass, or bond length for the material you are studying.
Use density mode when bulk density and molar mass are known. Use bond mode when the nearest-neighbor bond length is known from structural data.
It assumes an ideal zinc blende crystal, a cubic unit cell, correct stoichiometry, and consistent units. Real samples may deviate slightly from these ideal conditions.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.