Abstract
The Mössbauer spectrum of the [Fe(NH 3) 6] 2+ cation consists of a single narrow line at room temperature. This unusual effect is attributed to the existence of a dynamic Jahn-Teller distortion which inverts the t 2g orbitals very rapidly such that the time-averaged q valence is zero. The observed splitting of 1500 cm -1 in the 5E g state in the electronics spectrum of [Fe(NH 3) 6]Cl 2 is consistent with this explanation. The small ferrous quadrupole splittings in [Fe II(CH 3CN) 6][FeCl 4] 2 and [Fe(C 6H 5CN) 6][FeCl 4] 2, and the three line Mössbauer spectrum of [Fe(NH 3) 6]Cl 2 at 80°K are also discussed.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
