Arun Sridharan
@borntoarun.bsky.social
Organometallic chemist working in industry, rock climber, former runner, amateur cook. NJ native (youse) living in TX (y’all).
This work has been five years in the making - we first collected the Mössbauer spectrum of the imido cation in Oct 2020 - and I am so happy to finally share this with the community!
November 3, 2025 at 1:23 PM
This work has been five years in the making - we first collected the Mössbauer spectrum of the imido cation in Oct 2020 - and I am so happy to finally share this with the community!
These findings are interfaced to CASSCF and BS DFT calculations, in addition to sc-XRD and Mössbauer, which all point to redox events significantly delocalized onto the FeNAr unit.
November 3, 2025 at 1:23 PM
These findings are interfaced to CASSCF and BS DFT calculations, in addition to sc-XRD and Mössbauer, which all point to redox events significantly delocalized onto the FeNAr unit.
But, crucially, we can see distinct changes in the pNMR behavior as a function of redox. Turns out the N-subvalency manifests as changes in spin density at the NAr group, and you can detect this by VT NMR. We think this phenomenon should be general to paramagnetic metal imidos.
November 3, 2025 at 1:23 PM
But, crucially, we can see distinct changes in the pNMR behavior as a function of redox. Turns out the N-subvalency manifests as changes in spin density at the NAr group, and you can detect this by VT NMR. We think this phenomenon should be general to paramagnetic metal imidos.
Turns out you make a complex that has Fe-imidyl character, and you can even pull out another electron to make an Fe-triplet nitrene. Altogether not that surprising given what we know about high-spin Fe imidos.
November 3, 2025 at 1:23 PM
Turns out you make a complex that has Fe-imidyl character, and you can even pull out another electron to make an Fe-triplet nitrene. Altogether not that surprising given what we know about high-spin Fe imidos.