Comprehensive investigation of the electronic excitation of W(CO)₆ by photoabsorption and theoretical analysis in the energy region from 3.9 to 10.8 eV

• Mónica Mendes,
• Khrystyna Regeta,
• Filipe Ferreira da Silva,
• Nykola C. Jones,
• Søren Vrønning Hoffmann,
• Gustavo García,
• Chantal Daniel and
• Paulo Limão-Vieira

Beilstein J. Nanotechnol. 2017, 8, 2208–2218, doi:10.3762/bjnano.8.220

• pertains to the similarity observed in the qualitative behaviour of neutral photodissociation and UV photoabsorption below the first ionisation energy, where CO ligand ejection occurs. Moreover, Venkataraman and co-workers [33] explored the photodissociation of W(CO)6 at 248 nm (ca. 5 eV) assigning the

• photodissociation mechanisms of W(CO)6 have been investigated in a crossed laser–molecular beam study at 248 nm (ca. 5 eV), exploring the velocity distributions of the nascent photofragment yields [33]. A detailed analysis of the TOF photofragment distributions has provided a reliable description of the

• photodissociation mechanism for all six CO elimination steps required to produce the bare metal atom [33]. The single-photon and multiphoton processes yield sequential metal-to-ligand bond breaking with CO translational energy distributions assigned to direct and statistical dissociation, where the repulsive energy

Selective photodissociation of tailored molecular tags as a tool for quantum optics

• Ugur Sezer,
• Philipp Geyer,
• Moritz Kriegleder,
• Maxime Debiossac,
• Armin Shayeghi,
• Markus Arndt,
• Lukas Felix and
• Marcel Mayor

Beilstein J. Nanotechnol. 2017, 8, 325–333, doi:10.3762/bjnano.8.35

• ; photodissociation; synthetic photo-tags; Introduction Chemistry builds on the fact that the electronic structure, dynamics and properties of molecules are determined or influenced by quantum effects. However, it has only recently been experimentally verified that also the translational motion of an entire complex

• has been demonstrated with the trimeric model compound 1 while the here presented preliminary gas-phase photocleavage experiments have been performed with the monomeric building block 4, which displayed favourable photodissociation features compared to 1. Interestingly we find that photoactivated

Challenges in realizing ultraflat materials surfaces

• Takashi Yatsui,
• Wataru Nomura,
• Fabrice Stehlin,
• Olivier Soppera,
• Makoto Naruse and
• Motoichi Ohtsu

Beilstein J. Nanotechnol. 2013, 4, 875–885, doi:10.3762/bjnano.4.99

• DPPs induce the photodissociation of molecules at protrusions on the substrate (Figure 1b) even when the incident photon energy is smaller than the photodissociation energy, Ed. The dissociated molecules in turn induce the etching of the protrusion and the flattening the substrate (Figure 1c). This

• than Ed of O2 (5.12 eV). This light source induced adiabatic photodissociation of the O2 molecules. For this comparison, instead of using the usual value of Ra, which is the average value of the absolute surface height deviations from the best-fitting plane (dashed blue line in Figure 2c), we developed

Femtosecond time-resolved photodissociation dynamics of methyl halide molecules on ultrathin gold films

• Mihai E. Vaida,
• Robert Tchitnga and
• Thorsten M. Bernhardt

Beilstein J. Nanotechnol. 2011, 2, 618–627, doi:10.3762/bjnano.2.65

• Mihai E. Vaida Robert Tchitnga Thorsten M. Bernhardt Institute of Surface Chemistry and Catalysis, University of Ulm, Albert-Einstein-Allee 47, 89069 Ulm, Germany 10.3762/bjnano.2.65 Abstract The photodissociation of small organic molecules, namely methyl iodide, methyl bromide, and methyl

• at all. Keywords: femtosecond laser spectroscopy; gold; methyl halide photodissociation; surface chemistry; time-of-flight mass spectrometry; Introduction The understanding of the mechanisms involved in the light-induced excitation and fragmentation of organic molecules on metal substrates is of

• has been reported so far about the adsorption of methyl bromide or methyl chloride on gold. Also, no ultrafast time-resolved laser investigations of methyl halide molecules on metal substrates have been performed so far. Only recently, the femtosecond (fs)-laser time-resolved photodissociation of