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   https://doi.org/10.1039/D3CP02915H  

   Harold, Shannon E; Warf, Skyler L; Shields, George C (October 2023, Physical Chemistry Chemical Physics)

   Insight into the origin of prebiotic molecules is key to our understanding of how living systems evolved into the complex network of biological processes on Earth. 

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2. Infrared spectroscopy of the protonated HCl dimer and trimer

   https://doi.org/10.1063/5.0065477  

   Wagner, J. Philipp; McDonald, David C.; Colley, Jason E.; Franke, Peter R.; Duncan, Michael A. (October 2021, The Journal of Chemical Physics)
3. Modeling the laser-pulse-induced helium trimer dynamics

   https://doi.org/10.1103/PhysRevA.111.023108  

   Guan, Q.; Kruse, J.; Kunitski, M.; Dörner, R.; Blume, D. (February 2025, Physical Review A)
4. Photoelectron Velocity Map Imaging Spectroscopy of the Beryllium Trimer and Tetramer

   Jaffe, Noah B; Stanton, John F; Heaven, Michael C (September 2023, The journal of physical chemistry letters)

   Computational studies of small beryllium clusters (BeN) predict dramatic, nonmonotonic changes in the bonding mechanisms and per-atom cohesion energies with increasing N. To date, experimental tests of these quantum chemistry models are lacking for all but the Be2 molecule. In the present study, we report spectroscopic data for Be3 and Be4 obtained via anion photodetachment spectroscopy. The trimer is predicted to have D3h symmetric equilibrium structures for both the neutral molecule and the anion. Photodetachment spectra reveal transitions that originate from the X2A2″ ground state and the (1)2A1′ electronically excited state. The state symmetries were assigned on the basis of anisotropic photoelectron angular distributions. The neutral and anionic forms of Be4 are predicted to be tetrahedral. Franck−Condon diagonal photodetachment was observed with a photoelectron angular distribution consistent with the expected Be4−X2A1 → Be4X1A1 transition. The electron affinities of Be3 and Be4 were determined to be 11363 ± 60 and 13052 ± 50 cm−1, respectively 

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5. Photoelectron Velocity Map Imaging Spectroscopy of the Beryllium Trimer and Tetramer

   https://doi.org/10.1021/acs.jpclett.3c02169  

   Jaffe, Noah B.; Stanton, John F.; Heaven, Michael C. (September 2023, The Journal of Physical Chemistry Letters)