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Reply to: On the observation of photo-excitation effects in molecules using muon spin spectroscopy

Nature Materials volume 21, page 1110 (2022)Cite this article

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The Original Article was published on 10 May 2021

replying to R. Scheuermann & I. McKenzie Nature Materials https://doi.org/10.1038/s41563-021-01002-6 (2021)

We reported1 changes in the muonium (Mu) addition rate at different sites in 6,13-bis(tri(isopropyl)silylethynyl)-pentacene (TIPS-Pn) in CH2Cl2 when it is photo-excited compared with the ground electronic state. Scheuermann and McKenzie report in a Matters Arising2 that their independent analysis of the transverse-field muon spin rotation (TF-μSR) and avoided level crossing (ALC)-μSR spectra in ref. 1 indicate that there is no statistically significant effect of photo-excitation on this rate.

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Data availability

Raw experimental data are available via a publicly accessible repository (http://data.isis.stfc.ac.uk). Analysed data shown in Supplementary Figs. 1–13 and DFT calculations will be made available upon request from the corresponding authors.

References

  1. Wang, K. et al. Temporal mapping of photochemical reactions and molecular excited states with carbon specificity. Nat. Mater. 16, 467–473 (2017).

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  2. Scheuermann, R. & McKenzie, I. On the observation of photo-excitation effects in molecules using muon spin spectroscopy. Nat. Mater. https://doi.org/10.1038/s41563-021-01002-6 (2021).

  3. Walker, B. J., Musser, A. J., Beljonne, D. & Friend, R. H. Singlet exciton fission in solution. Nat. Chem. 5, 1019–1024 (2013).

    Article  CAS  Google Scholar 

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Acknowledgements

A.J.D. acknowledges financial support from the European Research Council (MuSES project, proposal number 307593) and Sichuan University. We acknowledge the scientific and technical support provided by the ISIS Neutron and Muon Source. K.W. was funded by the Chinese Scholarship Council. P.M. was funded by Queen Mary University of London, under the Principal’s Studentship scheme.

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Authors and Affiliations

  1. School of Physics and Astronomy, Queen Mary University of London, London, UK

    M. Jingliang, K. Wang, P. Murahari, K. Yokoyama, A. Misquitta, D. J. Dunstan & A. J. Drew

  2. College of Physical Sciences and Technology, Sichuan University, Chengdu, People’s Republic of China

    K. Wang, J. He, L. Schulz, M. Willis, S. Zhang & A. J. Drew

  3. ISIS Muon Facility, Rutherford Appleton Laboratory, Didcot, UK

    K. Yokoyama, J. S. Lord, F. L. Pratt & A. J. Drew

  4. Department of Chemistry, University of Kentucky, Lexington, KY, USA

    J. E. Anthony

  5. Department of Materials Science and Engineering, University of Sheffield, Sheffield, UK

    N. A. Morley

  6. Department of Physics, University of Fribourg, Fribourg, Switzerland

    L. Nuccio

  7. Materials and Life Science Division, J-PARC Center, Tokai, Japan

    K. Shimomura

  8. Nishina Centre, RIKEN-RAL, Wako, Japan

    I. Watanabe

  9. School of Biological and Chemical Sciences, Queen Mary University of London, London, UK

    P. Heathcote

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  1. M. Jingliang
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Contributions

M.J. analysed data and performed experiments. K.W. analysed data, did DFT calculations, interpreted the data and performed experiments. P.M. performed experiments. K.Y. built equipment and performed experiments. J.S.L. built equipment, performed experiments, did some modelling and interpreted the data. F.L.P. performed experiments, analysed data and interpreted data. J.H. performed experiments. L.S. performed experiments and analysed data. M.W. performed experiments and analysed data. J.E.A. synthesized samples. N.A.M. performed experiments and analysed data. L.N. performed experiments and analysed data. A.M. did DFT calculations. D.J.D. built equipment and advised on data analysis. K.S. built equipment. I.W. built equipment. S.Z. interpreted data. P.H. interpreted data, wrote the manuscript and conceived the work. A.J.D. did experiments, analysed and interpreted data, built equipment, modelled, wrote the manuscript and conceived the research.

Corresponding authors

Correspondence to P. Heathcote or A. J. Drew.

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The authors declare no competing interests.

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Supplementary Information

Supplementary Figs. 1–13, Table 1 and Discussion.

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Jingliang, M., Wang, K., Murahari, P. et al. Reply to: On the observation of photo-excitation effects in molecules using muon spin spectroscopy. Nat. Mater. 21, 1110 (2022). https://doi.org/10.1038/s41563-021-01003-5

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