Speaker
Description
Dihydrogen bonds (DHBs) are non-covalent interactions characterized by the X–Hᵟ⁺⋯ᵟ⁻H–Y motif, where X is an electronegative atom and Y an electropositive center (e.g. transition metals). In this work, we investigate DHB formation in clusters of multifluoromethanes (acting as proton donors) with trimethylsilane (TMS) and triethylsilane (TES) as hydrogen bond acceptors. Using chirped-pulse Fourier transform microwave (CP-FTMW) spectroscopy, we unambiguously identified DHBs via rotational transitions. Notably, spectral splittings reveal quantum tunneling dynamics in these complexes, indicating coherent interconversion between degenerate configurations.
Keywords | dihydrogen bonds · cluster chemistry · rotational spectra · quantum tunneling · silane |
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This abstract is submitted for.... | HBond 2025 conference |