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000398109 0247_ $$2ISSN$$a1092-0145
000398109 0247_ $$2arXiv$$aarXiv:1712.05655
000398109 0247_ $$2datacite_doi$$a10.3204/PUBDB-2017-13720
000398109 037__ $$aPUBDB-2017-13720
000398109 041__ $$aEnglish
000398109 0881_ $$aarXiv:1712.05655
000398109 088__ $$2arXiv$$aarXiv:1712.05655
000398109 082__ $$a550
000398109 1001_ $$0P:(DE-H253)PIP1018933$$aHorke, Daniel$$b0
000398109 245__ $$aHydrogen Bonds in Excited State Proton Transfer
000398109 260__ $$aCollege Park, Md.$$bAPS$$c2016
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000398109 520__ $$aHydrogen bonding interactions between biological chromophores and their surrounding protein and solvent environment significantly affect the photochemical pathways of the chromophore and its biological function. A common first step in the dynamics of these systems is excited state proton transfer between the non-covalently bound molecules, which stabilises the system against dissociation and principally alters relaxation pathways. Despite such fundamental importance, studying excited state proton transfer across a hydrogen bond has proven difficult, leaving uncertainties about the mechanism. Through time-resolved photoelectron imaging measurements we demonstrate how the addition of a single hydrogen bond and the opening of an excited state proton transfer channel dramatically changes the outcome of a photochemical reaction, from rapid dissociation in the isolated chromophore, to efficient stabilisation and ground state recovery in the hydrogen bonded case, and uncover the mechanism of excited state proton transfer at a hydrogen bond, which follows sequential hydrogen and charge transfer processes.
000398109 536__ $$0G:(DE-HGF)POF3-6211$$a6211 - Extreme States of Matter: From Cold Ions to Hot Plasmas (POF3-621)$$cPOF3-621$$fPOF III$$x0
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000398109 7001_ $$0P:(DE-HGF)0$$aWatts, H. M.$$b1
000398109 7001_ $$0P:(DE-HGF)0$$aSmith, A. D.$$b2
000398109 7001_ $$0P:(DE-HGF)0$$aJager, E.$$b3
000398109 7001_ $$0P:(DE-HGF)0$$aSpringate, E.$$b4
000398109 7001_ $$0P:(DE-HGF)0$$aAlexander, O.$$b5
000398109 7001_ $$0P:(DE-HGF)0$$aCacho, C.$$b6
000398109 7001_ $$0P:(DE-HGF)0$$aChapman, R. T.$$b7
000398109 7001_ $$0P:(DE-HGF)0$$aMinns, R. S.$$b8$$eCorresponding author
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