Home › Forums › Hyperfine course › electric quadrupole interaction › case studies / symmetry – task 1 › Answer to task 2 This topic has 0 replies, 1 voice, and was last updated 6 months, 3 weeks ago by Niels Houben. Viewing 1 post (of 1 total) Author Posts March 16, 2024 at 3:12 pm #5519 Niels HoubenParticipant Fe-I) I see 3 4-fold rotation axes for this, which results in the EFG tensor being zero and eta beign zero in all three cases. Fe-II) I see 1 4-fold rotation axis and 1 2-fold rotation axis, resulting in eta being zero in the 4-fold case. 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