The ground-state deprotection of a simple alkynylsilane is studied under vibrational strong coupling to the zero-point fluctuations, or vacuum electromagnetic field, of a resonant IR microfluidic cavity. The reaction rate decreased by a factor of up to 5.5 when the Si-C vibrational stretching modes of the reactant were strongly coupled. The relative change in the reaction rate under strong coup...

Femtosecond mid-infrared spectroscopy was applied to study the vibrational spectra and dynamics in the electronic excited states of semiconducting single-walled carbon nanotubes (SWNTs). The experiments were performed by exciting SWNTs dispersed individually in polymethylmethacrylate and polyvinyl alcohol polymer films with 40 fs laser pulses at 800 nm, and the resulting responses were monitore...

ZEKE-PFI (zero kinetic energy pulsed field ionization) photoelectron spectra of the Na(H 20), Na(D20), Na(NH 3), and Na(ND3) complexes are reported. Spectra of all four complexes were obtained by single-photon ionization, and, for the Na(NH 3) and Na(ND3) complexes, by two-color (I+ I') photoionization as well, with the A E state serving as the intermediate resonance. Improved values for the io...

Previous spectroscopically determined potentials for both H216O and NO2 are discussed. It is shown that a recent H216O potential energy surface due to D. Xie and G. Yan (1996. Chem. Phys. Lett. 248, 409), which was determined by fits to vibrational term values alone and was claimed to be more accurate than other published spectroscopically determined potentials for this system, actually gives u...

Abstract Dissociation of carbon monoxide in shock heated flows is studied with emphasis to the phenomenon dissociation induction. Different kinetic schemes are implemented, both neglecting and including electronic excitation; various vibrational state-resolved models rate coefficients assessed. Vibrational-electronic relaxation coupled behind front simulated frame state-to-state approach for se...

Raman scattering is widely used to study the vibrational and rotational properties of molecules. Normally infrared spectroscopy is needed to probe these levels but because of the Raman effect it is possible to excite these levels using visible light. In some cases Raman scattering is the only way to study these transitions. An example of this is the molecule H2. Since this molecule has no elect...

Chirped-Pulse millimetre-Wave (CPmmW) rotational spectroscopy provides a new class of information about photolysis transition state(s). Measured intensities in rotational spectra determine species-isomer-vibrational populations, provided that the rotational populations can be thermalized. The formation and detection of S(0) vinylidene is discussed in the limits of low and high initial rotationa...

We present a study of the particle transfer reaction between Oand D2 at three collision energies between 0.25 and 0.37 eV. Over this range, the product flux distributions extend over the full range of scattering angles, indicative of collisions in which the atoms remain in close proximity for a significant fraction of a rotational period. The vibrational state populations show the onset of a po...

The ground state potential energy surface of the GeC2 molecule has been investigated at highly correlated coupled cluster levels of theory. Large basis sets including diffuse functions and functions to describe core correlation effects were employed in order to predict the true equilibrium geometry for GeC2. Like the much-studied valence isoelectronic SiC2, the linear ( (), L-shaped (A8), and T...