There are several types of QSAR models, each with its unique applications: 1. 1D-QSAR: Uses simple molecular descriptors like molecular weight and counts of specific atoms. 2. 2D-QSAR: Incorporates connectivity indices and topological descriptors. 3. 3D-QSAR: Utilizes three-dimensional molecular properties such as steric and electrostatic fields. 4. 4D-QSAR: Adds the dimension of conformational flexibility by considering different molecular conformations. 5. 5D-QSAR: Includes solvation models to account for solvent effects. 6. 6D-QSAR: Incorporates receptor flexibility and dynamic binding interactions.
