Correction: Superprotonic conductivity in RbH(PO): a phosphate deficient analog to cubic CsHPO in the (1 - )RbHPO - RbHPO system.

Correction for 'Superprotonic conductivity in RbH(PO): a phosphate deficient analog to cubic CsHPO in the (1 - )RbHPO - RbHPO system' by Grace Xiong , , 2023, , 5555-5563, https://doi.org/10.1039/D3MH00852E.

Superprotonic conductivity in RbH(PO): a phosphate deficient analog to cubic CsHPO in the (1 - )RbHPO - RbHPO system.

In contrast to CsHPO (cesium dihydrogen phosphate, CDP), a material with a well-established superprotonic transition to a high conductivity state at 228 °C, RbHPO (rubidium dihydrogen phosphate, RDP) decomposes upon heating under ambient pressure conditions. Here we find, from study of the (1 - )RbHPO - RbHPO system, the remarkable occurrence of cubic, off-stoichiometric RbH(PO), or α-RDP, with a variable Rb : PO ratio. Materials were characterized by simultaneous thermal analysis and X-ray powder diffraction performed under high steam partial pressure, from which the phase diagram between RbHPO ( = 0) and RbH(PO) ( = 1/4) was established.

Structure and Properties of Cs(HPO)(HPO): A New Superprotonic Solid Acid Featuring the Unusual Polycation (HPO).

We report the discovery of a new superprotonic compound, Cs(HPO)(HPO), or CPP, which forms at elevated temperatures from the reaction of CsHPO and CsH(PO). The structure, solved using high-temperature single-crystal X-ray diffraction and confirmed by high-temperature P NMR spectroscopy, crystallizes in space group 3̅ and has a lattice constant of 20.1994(9) Å at 130 °C.

Quantitative identification of metastable magnesium carbonate minerals by solid-state 13C NMR spectroscopy.

In the conversion of CO2 to mineral carbonates for the permanent geosequestration of CO2, there are multiple magnesium carbonate phases that are potential reaction products. Solid-state (13)C NMR is demonstrated as an effective tool for distinguishing magnesium carbonate phases and quantitatively characterizing magnesium carbonate mixtures. Several of these mineral phases include magnesite, hydromagnesite, dypingite, and nesquehonite, which differ in composition by the number of waters of hydration or the number of crystallographic hydroxyl groups.