 Semiempirical quantum chemistry methods

Semiempirical quantum chemistry methods are computational approaches that aim to provide a balance between accuracy and computational cost when studying molecular systems. These methods are based on quantum mechanics but simplify certain aspects to make calculations feasible for larger systems or for applications where full quantum mechanical treatment is too demanding. ### Key Characteristics: 1. **Parameterization**: Semiempirical methods use empirical parameters obtained from experimental data or high-level quantum calculations.