Evidence map›Paper›PMID 42649180›Full record

ArticleNature communications2026

Electronic and solvent reorganization in proton-coupled electron transfer captured by ultrafast X-rays.

Abdullah Kahraman, Michael Sachs, Soumen Ghosh, Benjamin I Poulter, Estefanía Sucre-Rosales, Elizabeth S Ryland, Douglas Garratt, Sumana L Raj, Natalia Powers-Riggs, Subhradip Kundu and 17 more

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Nature communications, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

27 authors.

Abdullah KahramanPhysical Sciences Division, Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA, 99354, USA.ORCID http://orcid.org/0000-0003-1611-3061
Michael SachsStanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA.ORCID http://orcid.org/0000-0001-9775-9336
Soumen GhoshPhysical Sciences Division, Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA, 99354, USA.ORCID http://orcid.org/0000-0003-0850-4855
Benjamin I PoulterDepartment of Chemistry, University of Washington, Seattle, WA, 98195, USA.ORCID http://orcid.org/0000-0002-2007-0319
Estefanía Sucre-RosalesDepartment of Physical Chemistry, University of Geneva, CH-1211, Geneva, Switzerland.
Elizabeth S RylandStanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA.ORCID http://orcid.org/0000-0002-9200-1769
Douglas GarrattStanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA.ORCID http://orcid.org/0000-0002-8637-9984
Sumana L RajStanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA.
Natalia Powers-RiggsStanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA.
Subhradip KunduDepartment of Physical Chemistry, University of Geneva, CH-1211, Geneva, Switzerland.ORCID http://orcid.org/0000-0002-3610-7008
Christina Y HamptonLinac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA.
David J HoffmanLinac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA.ORCID http://orcid.org/0000-0001-8518-7676
Giacomo CoslovichLinac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA.ORCID http://orcid.org/0000-0002-1601-1287
Georgi L DakovskiLinac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA.
Patrick L KramerLinac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA.
Matthieu CholletLinac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA.ORCID http://orcid.org/0000-0002-9629-890X
Roberto Alonso-MoriLinac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA.ORCID http://orcid.org/0000-0002-5357-0934
Tim B van DrielLinac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA.
Sang-Jun LeeStanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA.ORCID http://orcid.org/0000-0002-8199-3993
Kristjan KunnusLinac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA.
Amy A CordonesStanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA.ORCID http://orcid.org/0000-0001-9897-5380
Robert W SchoenleinStanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA.ORCID http://orcid.org/0000-0002-6066-7566
Eric VautheyDepartment of Physical Chemistry, University of Geneva, CH-1211, Geneva, Switzerland.ORCID http://orcid.org/0000-0002-9580-9683
Amity AndersenEnvironmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA, 99354, USA.
Niranjan GovindPhysical Sciences Division, Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA, 99354, USA.ORCID http://orcid.org/0000-0003-3625-366X
Christopher B LarsenSchool of Chemical Sciences, University of Auckland, Auckland, 1010, New Zealand. christopher.larsen@auckland.ac.nz.ORCID http://orcid.org/0000-0003-3006-2408
Elisa BiasinPhysical Sciences Division, Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA, 99354, USA. elisa.biasin@pnnl.gov.ORCID http://orcid.org/0000-0002-7276-4224

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Proton-coupled electron transfer (PCET) is foundational to catalysis, bioenergetics, and energy conversion, yet directly observing the interplay between electronic redistribution, protonation, and solvent reorganization remains challenging. We combine femtosecond optical spectroscopy, ultrafast N K-edge X-ray absorption spectroscopy, and time-resolved X-ray solution scattering to capture the steps of a sequential PCET reaction in water with atomic-site specificity. Using a ruthenium polypyridyl model complex, we resolve the electron redistribution upon photoinduced metal-to-ligand charge transfer and subsequent ( ~ 460 ps) protonation at a ligand nitrogen, as well as the concomitant rearrangement of the first-solvation-shell. Combined with advanced electronic structure and molecular dynamics simulations, our measurements reveal a marked localization of the excited-state electron density at the protonated N site, together with a switch from N···HO to NH···O hydrogen-bonds. These results establish a multimodal X-ray framework for mechanistic insight into PCET and its control in catalysis, artificial photosynthesis, and biological energy flow.

Identifiers

PMID42649180
PMCPMC13518934

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.