Oxoammonium salts exert antiviral effects against coronavirus via denaturation of their spike proteins.

Severe acute respiratory syndrome-coronavirus-2 (SARS-CoV2) infection has forced social changes worldwide. Development of potent antiviral agents is necessary to prevent future pandemics. Titanium oxide, a photocatalyst, is a long-acting antiviral agent; however, its effects are weakened in the dark.

Hydrothermal Synthesis and Crystal Structure of a Mixed-Valence Bismuthate, NaBiO.

Four types of bismuth oxides, NaBiO, NaBiO, α-BiO, and ε-BiO, were obtained by hydrothermal reactions using NaBiO·HO in NaOH solution. The crystal structure of a new phase (Na Bi)BiO ((NaBi)BiO) was determined by using single crystal X-ray diffraction data, and this compound was found to show a NaMnCl-related structure with a monoclinic system (space group, ) with the following lattice parameters: = 5.990 (2) Å, = 3.