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Intramolecular Proton Transfer in the Radical Anion of Cytidine Monophosphate Sheds Light on the Sensitivities of Dry vs Wet DNA to Electron Attachment-Induced Damage

https://doi.org/10.1021/jacs.3c00591

Chomicz-Mańka, Lidia; Czaja, Anna; Falkiewicz, Karina; Zdrowowicz, Magdalena; Biernacki, Karol; Demkowicz, Sebastian; Izadi, Farhad; Arthur-Baidoo, Eugene; Denifl, Stephan; Zhu, Zhaoguo; et al (April 2023, Journal of the American Chemical Society)
Spontaneous Reduction by One Electron on Water Microdroplets Facilitates Direct Carboxylation with CO ₂

https://doi.org/10.1021/jacs.2c12731

Chen, Huan; Wang, Ruijing; Xu, Jinheng; Yuan, Xu; Zhang, Dongmei; Zhu, Zhaoguo; Marshall, Mary; Bowen, Kit; Zhang, Xinxing (February 2023, Journal of the American Chemical Society)

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Photoelectron Spectroscopic and Computational Study of the Deprotonated Gallic Acid and Propyl Gallate Anions

https://doi.org/10.1021/jasms.2c00017

Zhu, Zhaoguo; Marshall, Mary; Harris, Rachel; Collins, Evan; Bowen, Kit H. (March 2022, Journal of the American Society for Mass Spectrometry)

Antioxidants play important roles in eliminating reactive oxygen species (ROS), which have been associated with various degenerative diseases, such as cancer, aging, and inflammatory diseases. Gallic acid (GA) and propyl gallate (PG) are well-known antioxidants and have been widely studied in vitro and in vivo. The biological antioxidant abilities of GA and PG are related to the electronic structure of their dehydro-radicals. In this work, we report a combined photoelectron spectroscopic and computational study of the deprotonated gallic acid anion, [GA – H]−, and deprotonated propyl gallate anion, [PG – H]−. Adiabatic electron affinities of the dehydro-gallic acid radical, [GA – H]· and of the dehydro-propyl gallate radical, [PG – H]·, are measured to be 2.90 ± 0.05 eV and 2.85 ± 0.05 eV, respectively, and compared to computational results.
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Photoelectron Spectroscopic Study of Ascorbate and Deprotonated Ascorbate Anions Using an Electrospray Ion Source and a Cryogenically Cooled Ion Trap

https://doi.org/10.1021/acs.jpca.1c06540

Marshall, Mary; Zhu, Zhaoguo; Harris, Rachel; Collins, Evan; Bowen, Kit H. (September 2021, The Journal of Physical Chemistry A)

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Electrophilic Properties of 2′-Deoxyadenosine···Thymine Dimer: Photoelectron Spectroscopy and DFT Studies

https://doi.org/10.1021/acs.jpca.1c03803

Storoniak, Piotr; Rak, Janusz; Wang, Haopeng; Ko, Yeon Jae; Bowen, Kit H. (July 2021, The Journal of Physical Chemistry A)

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