What Does FCHF Stand For?

FCHF stands for Frozen Core Hartree Fock

FCHF, or Frozen Core Hartree Fock, is a computational method in quantum chemistry used to approximate the electronic structure of many-electron systems. This technique simplifies calculations by treating certain core electrons as fixed, allowing for a more efficient and manageable solution of the Hartree-Fock equations. FCHF is particularly useful for studying larger molecular systems where computational resources are a consideration, providing reliable results while reducing the complexity of the electronic interactions being modeled.