Visible and Near-Infrared Photothermal Catalyzed Hydrogenation of Gaseous CO over Nanostructured Pd@NbO.

The reverse water gas shift (RWGS) reaction driven by NbO nanorod-supported Pd nanocrystals without external heating using visible and near infrared (NIR) light is demonstrated. By measuring the dependence of the RWGS reaction rates on the intensity and spectral power distribution of filtered light incident onto the nanostructured Pd@NbO catalyst, it is determined that the RWGS reaction is activated photothermally. That is the RWGS reaction is initiated by heat generated from thermalization of charge carriers in the Pd nanocrystals that are excited by interband and intraband absorption of visible and NIR light.

Return of the lysergamides. Part II: Analytical and behavioural characterization of N -allyl-6-norlysergic acid diethylamide (AL-LAD) and (2'S,4'S)-lysergic acid 2,4-dimethylazetidide (LSZ).

Lysergic acid N,N-diethylamide (LSD) is perhaps one of the most intriguing psychoactive substances known and numerous analogs have been explored to varying extents in previous decades. In 2013, N -allyl-6-norlysergic acid diethylamide (AL-LAD) and (2'S,4'S)-lysergic acid 2,4-dimethylazetidide (LSZ) appeared on the 'research chemicals'/new psychoactive substances (NPS) market in both powdered and blotter form. This study reports the analytical characterization of powdered AL-LAD and LSZ tartrate samples and their semi-quantitative determination on blotter paper.

Formation of environmentally persistent free radicals from the heterogeneous reaction of ozone and polycyclic aromatic compounds.

In the 1980s long-lived radical species were identified in cigarette tar. Since then, environmentally persistent free radicals (EPFRs) have been observed in ambient particulate matter, and have been generated in particulate matter generated from internal combustion engines. For the first time, we measure in situ the formation and decay of EPFRs through the heterogeneous reaction of ozone and several polycyclic aromatic compounds (PAC).

CRAPT: an improved version of APT with compensation for variations in JCH.

A modified version of the attached proton test (APT) sequence for (13)C spectral editing, which we call CRisis-APT (CRAPT), is developed and tested on representative organic compounds. CRAPT incorporates (13)C compensation for refocusing inefficiency with synchronized inversion sweeps (CRISIS) pulses in combination with (1)H broadband inversion pulses to give improved compensation for variations in (1)JCH along with improved refocusing efficiency. It is shown that CRAPT gives edited (13)C spectra with only small losses in sensitivity (between 8% and 15% for strychnine, 1, menthol, 2, cholecalciferol, 3, and isotachysterol, 4), compared with basic (13)C spectra obtained on the same compounds.

The signal/noise of an HMBC spectrum can depend dramatically upon the choice of acquisition and processing parameters.

The effect of various acquisition and processing parameters on the sensitivity of HMBC spectra for typical organic molecules has been systematically investigated. For molecules in the 200-600 molecular weight range, an acquisition time of 0.2 to 0.

Synthesis of feralex a novel aluminum/iron chelating compound.

There is a need for in vivo applicable Fe(3+) and Al(3+) chelation compounds for use as medicines to treat toxic overload conditions of these ions. A novel compound, 2-deoxy-2-(N-carbamoylmethyl-[N'-2'-methyl-3'-hydroxypyrid-4'-one])-D-glucopyranose, designed to chelate Fe(3+) or Al(3+), has been synthesised utilising three naturally occurring products: maltol, glycine and glucosamine. The synthesis is a simple two step process.