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3 results for “visible light photocatalysis”
Visible light photocatalysis of 6pi-heterocyclization
<p>Photo‐mediated 6π cyclization is a valuable method for the formation of fused heterocyclic systems. Here we demonstrate that irradiation of cyclic 2‐aryloxyketones with blue LED light in the presence of an Ir<sup>III</sup> complex leads to efficient and high yielding arylation across a panoply of substrates by energy transfer. 2-Arylthioketones and 2‐arylaminoketones also cyclize effectively under these conditions. Quantum calculation demonstrates that the reaction proceeds via conrotatory ring closure in the triplet excited state. Subsequent suprafacial 1,4‐hydrogen shift and epimerization leads to the observed cis‐fused products.</p> <p>This data-set contains the output files from DFT calculations performed for this work, along with <a href="https://doi.org/10.5281/zenodo.595246">GoodVibes</a> thermochemistry outputs</p>
Thiosulfonylation of Unactivated Alkenes with Visible-Light Organic Photocatalysis
<p><strong>Origin of the data: </strong>Experimental spectroscopic measurements<br> <strong>Data Type: </strong>experimental measurements, open access supporting information</p> <p>The data are in CSV, DSW and FBSW format. Supporting information are supplied in PDF format.</p> <p>Data <strong>generated </strong>by instruments: </p> <p>Varian Cary 5E-UV-Vis-NIR spectrophotometer for UV-Vis measurements,<br> Varian Cary Eclipse fluorescence spectrophotomer for fluorescence quenching measurements.</p> <p><strong>Analytical and procedural information: </strong>Stern-Volmer fluorescence quenching experiments, UV-Vis measurements and Fluorescent Quantum Yield determination via ferrioxalate actinometry.</p> <p><strong>Definition of variables: </strong>Wavelength, Absorbance, Concentration<br> <strong>Units of measurement: </strong>nanometers (nm), moles-per-litre (mol/l)</p> <p><strong>Abbreviations: </strong><br> File names and data headers use the following abbreviations:</p> <ul> <li><strong>FQY </strong>refers to Fluorescence Quantum Yield determination experiments</li> <li><strong>Light </strong>refers to irradiated samples in the actinometry experiment, as detailed in the procedure in the supporting information.</li> <li><strong>Dark </strong>refers to non-irradiated samples in the actinometry experiment, as detailed in the procedure in the supporting information.</li> <li><strong>SVQuench </strong>refers to Stern-Volmer quenching experiments</li> <li><strong>RAxx </strong>refer to measurements related to allylbenzene. <strong>Xx </strong>is the amount of quencher in mol/l (05 should be intended as 0.5 mol/l and so on).</li> <li><strong>RTxx </strong>refer to measurements related to <em>S</em>-(4-methylphenyl) 4-methylbenzenethiosulfonate. <strong>Xx </strong>is the amount of quencher in mol/l as above.</li> <li><strong>RExx </strong>refer to measurements related to 1,2-dimethoxy-4-(prop-2-en-1-yl)benzene. <strong>Xx </strong>is the amount of quencher in mol/l as above.</li> <li><strong>RSxx </strong>refer to measurements related to styrene. <strong>Xx </strong>is the amount of quencher in mol/l.</li> <li><strong>RTFxx </strong>refer to measurements related to <em>S</em>-(4-fluorophenyl) 4-fluorobenzenethiosulfonate. <strong>Xx </strong>is the amount of quencher in mol/l as above.</li> <li><strong>MesAcrMe Xx </strong>refers to data related to catalyst 9-mesityl-10-methylacridinium. <strong>Xx </strong>is the amount of catalyst in mol/l as above.</li> <li><strong>DMC </strong>for measurements employing dimethylcarbonate as solvent.</li> <li><strong>ACN </strong>for measurements employing acetonitrile as solvent.</li> </ul>
Benzaldehyde-Promoted (Auto)Photocatalysis under Visible Light: Pitfalls and Opportunities in Photocatalytic H2O2 Production
<p>Data to our study "Benzaldehyde-Promoted (Auto)Photocatalysis under Visible Light: Pitfalls and Opportunities in Photocatalytic H<sub>2</sub>O<sub>2</sub> Production"</p>
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