不饱和度计算器 — 公式

Born-Landé Equation for Lattice Energy

Formula

U = −(A × N_A × e² × z⁺ × z⁻) / (4πε₀ × r₀) × (1 − 1/n)

Simplified with constants combined: U = −(A × 1389.4 × z⁺ × z⁻ / r₀) × (1 − 1/n)

Where r₀ is in angstroms (pm/100), and 1389.4 kJ·Å/mol combines N_A, e², and 4πε₀.

Where:

A = Madelung constant (depends on crystal structure)

z⁺, z⁻ = ion charges

r₀ = interionic distance

n = Born exponent (5-12 depending on electron configuration)