Douglas Garratt
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Explore the profile of Douglas Garratt including associated specialties, affiliations and a list of published articles.
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Articles
11
Citations
39
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Recent Articles
1.
Nelson K, Kazmierczak N, Cagan D, Follmer A, Scott T, Raj S, et al.
J Phys Chem Lett
. 2024 Dec;
16(1):87-94.
PMID: 39700059
Ni 2,2'-bipyridine complexes are commonly invoked intermediates in metallaphotoredox cross-coupling reactions. Despite their ubiquity, design principles targeting improved catalytic performance remain underdetermined. A series of Ni(bpy)(Ar)Cl (R = MeOOC, -Bu,...
2.
Alexander O, Egun F, Rego L, Gutierrez A, Garratt D, Cardenas G, et al.
Sci Adv
. 2024 Sep;
10(39):eadp0841.
PMID: 39321305
We report the measurement of impulsive stimulated x-ray Raman scattering in neutral liquid water. An attosecond pulse drives the excitations of an electronic wavepacket in water molecules. The process comprises...
3.
Driver T, Mountney M, Wang J, Ortmann L, Al-Haddad A, Berrah N, et al.
Nature
. 2024 Aug;
632(8026):762-767.
PMID: 39169246
The photoelectric effect is not truly instantaneous but exhibits attosecond delays that can reveal complex molecular dynamics. Sub-femtosecond-duration light pulses provide the requisite tools to resolve the dynamics of photoionization....
4.
Garratt D, Matthews M, Marangos J
Struct Dyn
. 2024 Jan;
11(1):010901.
PMID: 38250136
Novel ultrafast x-ray sources based on high harmonic generation and at x-ray free electron lasers are opening up new opportunities to resolve complex ultrafast processes in condensed phase systems with...
5.
Hutchison C, Baxter J, Fitzpatrick A, Dorlhiac G, Fadini A, Perrett S, et al.
Nat Chem
. 2023 Aug;
15(11):1607-1615.
PMID: 37563326
The photoisomerization reaction of a fluorescent protein chromophore occurs on the ultrafast timescale. The structural dynamics that result from femtosecond optical excitation have contributions from vibrational and electronic processes and...
6.
Barnard J, Lee J, Alexander O, Jarosch S, Garratt D, Picciuto R, et al.
Front Mol Biosci
. 2022 Dec;
9:1044610.
PMID: 36452452
The development of ultra-thin flat liquid sheets capable of running in vacuum has provided an exciting new target for X-ray absorption spectroscopy in the liquid and solution phases. Several methods...
7.
Li S, Driver T, Rosenberger P, Champenois E, Duris J, Al-Haddad A, et al.
Science
. 2022 Jan;
375(6578):285-290.
PMID: 34990213
In quantum systems, coherent superpositions of electronic states evolve on ultrafast time scales (few femtoseconds to attoseconds; 1 attosecond = 0.001 femtoseconds = 10 seconds), leading to a time-dependent charge...
8.
Li S, Driver T, Alexander O, Cooper B, Garratt D, Marinelli A, et al.
Faraday Discuss
. 2021 Feb;
228(0):488-501.
PMID: 33625412
An atomic-level picture of molecular and bulk processes, such as chemical bonding and charge transfer, necessitates an understanding of the dynamical evolution of these systems. On the ultrafast timescales associated...
9.
ONeal J, Champenois E, Oberli S, Obaid R, Al-Haddad A, Barnard J, et al.
Phys Rev Lett
. 2020 Aug;
125(7):073203.
PMID: 32857563
Free-electron lasers provide a source of x-ray pulses short enough and intense enough to drive nonlinearities in molecular systems. Impulsive interactions driven by these x-ray pulses provide a way to...
10.
Driver T, Li S, Champenois E, Duris J, Ratner D, Lane T, et al.
Phys Chem Chem Phys
. 2019 Dec;
22(5):2704-2712.
PMID: 31793561
The recent demonstration of isolated attosecond pulses from an X-ray free-electron laser (XFEL) opens the possibility for probing ultrafast electron dynamics at X-ray wavelengths. An established experimental method for probing...