What Does GNO Stand For?

GNO stands for Geminal Natural Orbital

Geminal Natural Orbital (GNO) is a theoretical framework used in quantum chemistry that represents an alternative to traditional molecular orbital approaches. GNOs are derived from the natural orbital expansion of the electron correlation wave function, focusing on pairs of electrons located in close spatial proximity, or geminal pairs. This method enhances the computational efficiency of electronic structure calculations by allowing for the accurate description of electron correlation effects in molecular systems, thereby facilitating a better understanding of molecular interactions and properties.