Wybren Jan Buma

Interstellar Aromatic Infrared Bands: IR absorption spectroscopy of the lowest triplet state of naphthalene

Priyanka Arvind Paunikar, Hugo Maurer, Lars Reems, Alessandra Candian et autres

The aromatic infrared bands (AIBs), emission features observed ubiquitously across a wide variety of interstellar objects, are commonly attributed to radiative cooling of highly-excited ground-state vibrational levels of polycyclic aromatic hydrocarbons (PAHs) that are populated after UV absorption and internal conversion. However, …

Jet-Cooled Spectroscopy of Amino-Substituted Cinnamates

Hugo Maurer, Wybren Jan Buma

The photochemical and photophysical relaxation pathways of UV filters play a critical role in determining their stability and safety. Here, we present comprehensive gas-phase spectroscopic studies of cinnamate derivatives substituted on the phenyl group with an amino group in the para (M4AC), …

nl (code pays fourni par la source)

Tuning Iminothioindoxyl Photoswitches Toward Photopharmacological Applications

Melody E. Boëtius, Alexandre G. Meyers, Martin Ošťadnický, Sasha Božić et autres

Photopharmacology offers precise control over the activity of biological systems using light, with photoswitches being increasingly used as reversible modulators of drug activity. In this context, the recently developed iminothioindoxyl photoswitches (ITIs) form a highly attractive class of scaffolds. In previous studies, …

nl, sk, cz (code pays fourni par la source)

SPADcam Velocity Map Imaging of single electrons and ions

H. Maurer, W.G. Roeterdink, Wybren Jan Buma, Ivan Powis et autres

Abstract We report on the novel application of a highly sensitive photon imaging sensor — a Single Photon Avalanche Diode (SPAD) camera imager — for Velocity Map Imaging (VMI) detection of single electrons or ions, coined SPADcamVMI. The exposure of the SPAD …

nl, gb, ch (code pays fourni par la source)

Vibrational Circular Dichroism enhancement in conformationally flexible transition metal complexes

Mariia Sapova, Menno de Boer, Wybren Jan Buma, Lucas Visscher

We extend our previously developed approach for calculating enhanced vibrational circular dichroism (VCD) spectra of transition-metal complexes to systems for which conformational flexibility is key to reproduce and elucidate experimental spectra. Treating both the Gibbs free energies and electronic excitation energies as …

nl (code pays fourni par la source)

CCDC 2387089: Experimental Crystal Structure Determination

Rajesh Deka, Jorn D. Steen, Michiel Hilbers, Wim G. Roeterdink et autres

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, …

Optimizing photon conversion routes in cinnamate derivatives

Michael Hymas, Jack Dalton, I. A. Romanov, Hans J. Sanders et autres

E-Z photoisomerisation is a key relaxation process in biological chromophores, supporting processes such as vision and photoprotection. Here we use such pathways to optimise photon-to-heat conversion processes. To this purpose, we synthesise methyl cinnamate derivatives in which steric and electronic substitutions modulate …

gb, nl, fr (code pays fourni par la source)

CCDC 2479875: Experimental Crystal Structure Determination

Jacob Jan van der Wal, Jorn D. Steen, Ann‐Kathrin Rückert, Roman Yu. Peshkov et autres

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, …

CCDC 2471168: Experimental Crystal Structure Determination

Youxin Fu, Jingwen Zhou, Anna M. Doze, Xing Zhang et autres

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, …

CCDC 2478830: Experimental Crystal Structure Determination

Youxin Fu, Jingwen Zhou, Anna M. Doze, Xing Zhang et autres

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, …

Steric Engineering of Phenanthrenequinone for Ultrafast and Tunable Visible Light-Induced Photoclick Reaction

Youxin Fu, Jingwen Zhou, Anna M. Doze, Xi Zhang et autres

Light-induced 9,10-phenanthrenequinone-electron-rich alkene ( PQ-ERA ) photocycloadditions are an attractive new type of photoclick reaction featuring fast conversions. However, the tunability of the reaction has hardly been investigated up to now. To this end, we explored steric engineering at the PQ ortho …

cn, nl, se (code pays fourni par la source)

Faster is better: optimizing photon conversion routes in cinnamate derivatives

Michael Hymas, Jack Dalton, Ivan Romanov, Hans Sanders et autres

Data set for paper "Faster is better: optimizing photon conversion routes in cinnamate derivatives".

fr (code pays fourni par la source)