What Does FNO Stand For?

FNO stands for Frozen Natural Orbital

FNO, or Frozen Natural Orbital, refers to a computational technique used in quantum chemistry and molecular modeling. This approach focuses on optimizing the electronic structure of molecules by employing a fixed set of natural orbitals, which helps improve the efficiency and accuracy of calculations related to molecular interactions, properties, and reactions. By utilizing frozen natural orbitals, researchers can simplify complex calculations while maintaining a reliable representation of the electronic behavior in various chemical systems.

Added on 14th April 2008 | Last edited on 17th June 2025 | Edit Acronym