What Does NISTO Stand For?

NISTO stands for Non Integer Slater Type Orbital

NISTO, or Non Integer Slater Type Orbital, refers to a computational method used in quantum chemistry and molecular modeling. It employs a basis set of orbitals that are derived from Slater-type functions, but with non-integer parameters to better approximate the electronic wavefunctions of atoms and molecules. This approach enhances the accuracy of electronic structure calculations, enabling more precise predictions of molecular properties and behavior in various chemical environments. NISTO is particularly valuable in the study of complex systems where traditional integer-based orbital methods may not suffice.