Speciation atlas of polyoxometalates in aqueous solution (Part II): Molybdenum browns.

ABSTRACT: We present a validated, openly accessible workflow and spectral database charting the solution speciation of molybdenum browns. These redox-active polyoxometalates are central to catalysis and increasingly explored for bioinspired transformations and nanomedicine, making their solution behavior critical for both mechanistic understanding and practical use. Two archetypal Keplerate-type polyoxometalates, {Mo₇₂V₃₀} and {W₇₂V₃₀}, were investigated under 69 systematically varied aqueous conditions. Complementary ⁵¹V/³¹P nuclear magnetic resonance, resonance Raman, electrospray ionization mass spectrometry, and ultraviolet-visible spectroscopy interrogate the effects of pH, buffer identity, temperature, and incubation time on Kep

SUBMITTER: Gregorovic I 

PROVIDER: S-EPMC12577712 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature