Home › Forums › density functional theory › the Born-Oppenheimer approximation › The Born-Oppenheimer approximation This topic has 0 replies, 1 voice, and was last updated 2 years, 2 months ago by R.V.SHIVAKUMAR. Viewing 1 post (of 1 total) Author Posts September 27, 2022 at 10:24 am #6573 R.V.SHIVAKUMARParticipant In the case of small molecules or molecules with very light nuclei, this approximation gives a greater error. Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In