The photoelectron spectra of para-benzoquinone radical cluster anions, (pBQ)n− (n = 2–4), taken at hv = 4.00 eV are presented and compared with the photoelectron spectrum of the monomer (n = 1). For all clusters, a direct detachment peak can be identified, and the incremental increase in the vertical detachment energy of ∼0.4 eV n−1 predominantly reflects the increase in cohesion energy as the cluster size increases. For all clusters, excitation also leads to low energy electrons that are produced by thermionic emission from ground electronic state anionic species, indicating that resonances are excited at this photon energy. For n = 3 and 4, photoelectron features at lower binding energy are observed which can be assigned to photodetachment from pBQ− for n = 3 and both pBQ− and (pBQ)2− for n = 4. These observations indicate that the cluster dissociates on the time scale of the laser pulse (∼5 ns). The present results are discussed in the context of related quinone cluster anions.
Skip Nav Destination
Article navigation
28 November 2019
Research Article|
November 26 2019
Photoelectron spectroscopy of para-benzoquinone cluster anions
Golda Mensa-Bonsu
;
Golda Mensa-Bonsu
Department of Chemistry, Durham University
, Durham DH1 3LE, United Kingdom
Search for other works by this author on:
Mark R. Wilson
;
Mark R. Wilson
Department of Chemistry, Durham University
, Durham DH1 3LE, United Kingdom
Search for other works by this author on:
David J. Tozer
;
David J. Tozer
Department of Chemistry, Durham University
, Durham DH1 3LE, United Kingdom
Search for other works by this author on:
Jan R. R. Verlet
Jan R. R. Verlet
a)
Department of Chemistry, Durham University
, Durham DH1 3LE, United Kingdom
Search for other works by this author on:
J. Chem. Phys. 151, 204302 (2019)
Article history
Received:
October 17 2019
Accepted:
November 11 2019
Citation
Golda Mensa-Bonsu, Mark R. Wilson, David J. Tozer, Jan R. R. Verlet; Photoelectron spectroscopy of para-benzoquinone cluster anions. J. Chem. Phys. 28 November 2019; 151 (20): 204302. https://doi.org/10.1063/1.5132391
Download citation file:
Sign in
Don't already have an account? Register
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Could not validate captcha. Please try again.
Sign in via your Institution
Sign in via your InstitutionPay-Per-View Access
$40.00
Citing articles via
Related Content
An experimental and theoretical investigation into the electronically excited states of para-benzoquinone
J. Chem. Phys. (May 2017)
Negative ion properties of p‐benzoquinone: Electron affinity and compound states
J. Chem. Phys. (September 2008)
An ab initio investigation for elastic and electronically inelastic electron scattering from para-benzoquinone
J. Chem. Phys. (November 2018)
p-benzoquinone-benzene clusters as potential nanomechanical devices: A theoretical study
J. Chem. Phys. (June 2004)
A CNDO/S assessment of the electronic structure of p‐benzoquinone and tetrafluoro‐p‐benzoquinone
J. Chem. Phys. (August 2008)