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   https://doi.org/10.1111/1462-2920.13836  

   Sexton, D. Joseph ; Glover, Rochelle C. ; Loper, Joyce E. ; Schuster, Martin ( September 2017 , Environmental Microbiology)
2. Competition between Solvent–Solvent and Solvent–Solute Interactions in the Microhydration of the Hexafluorophosphate Anion, PF 6 – (H 2 O) n=1,2

   https://doi.org/10.1021/acs.jpca.0c06466  

   Abdo, Yasmeen A. ; Tschumper, Gregory S. ( October 2020 , The Journal of Physical Chemistry A)

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3. A VSEPR-inspired force field for determining molecular properties of PF 5

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   McCaslin, Laura M. ; Stanton, John F. ( November 2018 , Molecular Physics)
4. Efficient Operations of Micro-Grids with Meshed Topology and Under Uncertainty through Exact Satisfaction of AC-PF, Droop Control and Tap-Changer Constraints

   https://doi.org/10.3390/en15103662  

   Bragin, Mikhail A. ; Yan, Bing ; Kumar, Akash ; Yu, Nanpeng ; Zhang, Peng ( May 2022 , Energies)

   Micro-grids’ operations offer local reliability; in the event of faults or low voltage/frequency events on the utility side, micro-grids can disconnect from the main grid and operate autonomously while providing a continued supply of power to local customers. With the ever-increasing penetration of renewable generation, however, operations of micro-grids become increasingly complicated because of the associated fluctuations of voltages. As a result, transformer taps are adjusted frequently, thereby leading to fast degradation of expensive tap-changer transformers. In the islanding mode, the difficulties also come from the drop in voltage and frequency upon disconnecting from the main grid. To appropriately model the above, non-linear AC power flow constraints are necessary. Computationally, the discrete nature of tap-changer operations and the stochasticity caused by renewables add two layers of difficulty on top of a complicated AC-OPF problem. To resolve the above computational difficulties, the main principles of the recently developed “l1-proximal” Surrogate Lagrangian Relaxation are extended. Testing results based on the nine-bus system demonstrate the efficiency of the method to obtain the exact feasible solutions for micro-grid operations, thereby avoiding approximations inherent to existing methods; in particular, fast convergence of the method to feasible solutions is demonstrated. It is also demonstrated that through the optimization, the number of tap changes is drastically reduced, and the method is capable of efficiently handling networks with meshed topologies. 

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5. A non-luminescent polymorph of [(cyclohexyl isocyanide) 2 Au]PF 6 that becomes luminescent upon grinding or exposure to dichloromethane vapor

   https://doi.org/10.1039/D0CC06161A  

   Luong, Lucy M. ; Olmstead, Marilyn M. ; Balch, Alan L. ( January 2021 , Chemical Communications)

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   The discovery of a third, non-luminescent crystalline polymorph of [(C 6 H 11 NC) 2 Au]PF 6 is reported. Remarkably, crystals of this polymorph are sensitive to mechanical pressure or to exposure to dichloromethane vapor. In both cases, the conversion produces the yellow, green luminescent polymorph of [(C 6 H 11 NC) 2 Au]PF 6 and not the colorless, blue luminescent polymorph. 

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