Intermolecular proton transfer in anionic complexes of uracil with alcohols

Article Abstract:

A series of 18 alcohols (ROH) is designed with an enthalpy of deprotonation in the gas phase in the range 13.8-16.3 eV. For ROHs with deprotonation enthalpies smaller than 14.3 eV, the excess electron attachment to the ROH...U- complex always induces a barrier-free proton transfer from the hydroxyl group of ROH to the O8 atom of U, with the product being RO-...HU.

Science & research, Research, Charge transfer, Enthalpy, Alcohols, Chemical properties

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Excess electron attachment induces barrier-free proton transfer in atomic complexes of thymine and uracil with formic acid

Article Abstract:

The anionic complexes of formic acid with uracil and thymine reveal broad photoelectron spectroscopy features centered at 1.7 and 1.11 eV, respectively. The difference in experimental spectra of UF- and TF- provides an indication that the methyl group of thymine could make a difference in the intermolecular proton transfer.

All Other Basic Organic Chemical Manufacturing, Biological Product (except Diagnostic) Manufacturing, Drugs, Industrial organic chemicals, not elsewhere classified, Formic Acid, Thymine, Chemistry, Physical and theoretical, Physical chemistry

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Excess electron attachment induces barrier-free proton transfer in binary complexes of uracil with H2Se and H2S but not with H2O

Article Abstract:

The photoelectron spectrum of the anionic uracil-H2S anionic complex (UH2S)(super -) is recorded with 2.540 eV photons. The (UH2S)(super -) spectrum reveals a broad feature with its maximum between 1.7 and 2.1 eV.

Usage, Uracil mustard, Proton synchrotrons

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