Specimen antiquario-literarium : de eranis veterum graecorum ; inprimis ex jure attico ... pro gradu doctoratus, summisque in philosophia theoretica et literis humanioribus honoribus ac privilegiis, in academia Lugduno-Batava ... defendet Joannes Jacobus van Holst ... ad diem XXX Juni 1832...

Thesis - Leiden.

Gedenkschriften van Gijsbert Jan van Hardenbroek ... (1747-1787)

Vols. 3-4 edited by A.J. van der Meulen.

Records of a voyage to the western coast of Africa in His Majesty's ship Dryad, during the years 1830, 1831, and 1832 / by Peter Leonard.

"List of vessels engaged in the slave trade captured by the British Squadron employed on the western coast of Africa, in the year 1829": p. [268-271]

Herinneringen aan het Kasteel van Antwerpen in de maanden Novermber en December 1832.

Mode of access: Internet.

Nederlandsche jaerboeken, inhoudende een verhael van de merkwaerdigste geschiedenissen, die voorgevallen zyn binnen den omtrek der Vereenigde provintien, sedert het begin des jaers MDCCXLVII. 1.-23. deel; 1747-65.

Vol. 20-22 are composed of supplements for the years 1747-65. v. 23 is a general index for the same years.

Hon. Jonathan Russell's letter to John P. Van Ness, Esq.

James P. Van Ness was chairman of the Jackson Corresponding Committee of the District of Columbia.

Observation of the C2H2-N2O van der Waals complex in the overtone range using CW-CRDS

A slit nozzle supersonic expansion containing C2H2 (246 sccm) and N2O (355 sccm) seeded into Ar (1260 sccm) is investigated using CW cavity ring-down spectroscopy, in the 1.5 μm range. The C2H2-N2O van der Waals complex is observed around the 2CH acetylenic band. Despite strong perturbations, 117 b-type lines are assigned. Their combined fit with published microwave data leads to new upper state and improved lower state rotational constants. The Lorentzian width of the assigned line profiles sets the mean lifetime to 1.6 ns. The rotational temperature is estimated to be 15 K from the comparison between observed and simulated spectra. © 2008 Elsevier B.V. All rights reserved.

The Fantasio set-up: High resolution overtone spectroscopy of acetylene containing van der Waals dimers

info:eu-repo/semantics/nonPublished

The C2H2-Ar van der Waals complex

info:eu-repo/semantics/nonPublished

Investigation of acetylene-containing van der Waals complexes by cavity ring-down spectroscopy and ab initio calculations

info:eu-repo/semantics/nonPublished

12C2H2-Ar van der Waals complex

New theoretical and experimental results on the acetylene-Ar van der Waals complex are presented and the literature is reviewed. New ab initio calculations at the MP2 level were performed using large basis sets with diffuse functions and taking into account the basis set superposition error. It was found that the structure of acetylene is not significantly altered by the complexation and that its vibrational frequencies are only slightly lowered. Finally, it was observed that the calculated properties of the complex (structure, vibrational spectrum, bond dissociation energy) are not sensitive to the structure imposed on acetylene. Experimentally, acetylene-Ar was produced in a supersonic expansion under experimental conditions corresponding to 9 K rotational temperature. Thanks to the performances of CW-CRDS detection, the Ka = 0 ← 1, 1 ← 0, and 2 ← 1 sub- bands of the v1 + v3 band could be recorded and resolved and most of their lines assigned. Upper-state rotational constants were fitted, however not including the upper Ka = 2 state, which shows K-doubling the opposite of the expected. The Lorentzian width of most line profiles sets the mean lifetime to some 7.5 ns. Local perturbations affecting line positions and/or line widths are demonstrated. Additional series of lines tentatively attributed to acetylene-Ar are discussed.© 2009 American Chemical Society.

Adsorption of organic molecules at the TiO2(110) surface: the effect of van der Waals interactions

Understanding the interaction of organic molecules with TiO2 surfaces is important for a wide range of technological applications. While density functional theory (DFT) calculations can provide valuable insight about these interactions, traditional DFT approaches with local exchange-correlation functionals suffer from a poor description of non-bonding van der Waals (vdW) interactions. We examine here the contribution of vdW forces to the interaction of small organic molecules (methane, methanol, formic acid and glycine) with the TiO2 (110) surface, based on DFT calculations with the optB88-vdW functional. The adsorption geometries and energies at different configurations were also obtained in the standard generalized gradient approximation (GGA-PBE) for comparison. We find that the optB88-vdW consistently gives shorter surface adsorbate-to-surface distances and slightly stronger interactions than PBE for the weak (physisorbed) modes of adsorption. In the case of strongly adsorbed (chemisorbed) molecules both functionals give similar results for the adsorption geometries, and also similar values of the relative energies between different chemisorption modes for each molecule. In particular both functionals predict that dissociative adsorption is more favourable than molecular adsorption for methanol, formic acid and glycine, in general agreement with experiment. The dissociation energies obtained from both functionals are also very similar, indicating that vdW interactions do not affect the thermodynamics of surface deprotonation. However, the optB88-vdW always predicts stronger adsorption than PBE. The comparison of the methanol adsorption energies with values obtained from a Redhead analysis of temperature programmed desorption data suggests that optB88-vdW significantly overestimates the adsorption strength, although we warn about the uncertainties involved in such comparisons.