ISIS Neutron and Muon Source Data Journal

Excited/Ground State of Kekulé di-radical Material Bisphenalenyl

Abstract: Kekulé di-radical (KDR) with two radical centers of independent spins has a low-spin ground state (singlet S0 with antiparallel spins), and interestingly high-spin triplets (T1) can be thermally activated and populated at high temperature to advance the room-temperature spin-active properties of KDR materials. Hence, it is important to microscopically study the electronic structures of S0 and T1 of KDRs. We plan to use photo-pump muon-probe muSR to learn photo induced effect on muSR spectra at 10K, where the ground states are mostly populated before photo excitation, to demonstrate that muon can the study the differences in electronic structures of T1 and S0 in KDR materials, while other methods may not resolve signals due to broadening effects in solids. Sample was chosen due to its symmetry and simplicity. Relevant muSR spectra in ground state has been done. This is a follow-up work.

Principal Investigator: Dr Ke Wang
Local Contact: Dr Koji Yokoyama
Experimenter: Ms Jie Peng
Experimenter: Professor Alan Drew
Experimenter: Dr Junzhi Liu

DOI: 10.5286/ISIS.E.RB1920599

ISIS Experiment Number: RB1920599

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
Select the data format above to find out more about it.

Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Dr Ke Wang et al; (2019): Excited/Ground State of Kekulé di-radical Material Bisphenalenyl, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1920599

Data is released under the CC-BY-4.0 license.