X-ray diffractive imaging of controlled gas-phase molecules: Toward imaging of dynamics in the molecular frame

Media type: E-Article

Title: X-ray diffractive imaging of controlled gas-phase molecules: Toward imaging of dynamics in the molecular frame

Contributor: Kierspel, Thomas; Morgan, Andrew; Wiese, Joss; Mullins, Terry; Aquila, Andy; Barty, Anton; Bean, Richard; Boll, Rebecca; Boutet, Sébastien; Bucksbaum, Philip; Chapman, Henry N.; Christensen, Lauge; Fry, Alan; Hunter, Mark; Koglin, Jason E.; Liang, Mengning; Mariani, Valerio; Natan, Adi; Robinson, Joseph; Rolles, Daniel; Rudenko, Artem; Schnorr, Kirsten; Stapelfeldt, Henrik; Stern, Stephan; [...]

imprint: AIP Publishing, 2020

Language: English

DOI: 10.1063/1.5133963

ISSN: 0021-9606; 1089-7690

Keywords: Physical and Theoretical Chemistry ; General Physics and Astronomy

Origination:

Footnote:

Description: We report experimental results on the diffractive imaging of three-dimensionally aligned 2,5-diiodothiophene molecules. The molecules were aligned by chirped near-infrared laser pulses, and their structure was probed at a photon energy of 9.5 keV (λ ≈ 130 pm) provided by the Linac Coherent Light Source. Diffracted photons were recorded on the Cornell–SLAC pixel array detector, and a two-dimensional diffraction pattern of the equilibrium structure of 2,5-diiodothiophene was recorded. The retrieved distance between the two iodine atoms agrees with the quantum-chemically calculated molecular structure to be within 5%. The experimental approach allows for the imaging of intrinsic molecular dynamics in the molecular frame, albeit this requires more experimental data, which should be readily available at upcoming high-repetition-rate facilities.

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