A5011706487- Photochromic and Fluorescence Chemistry
- Radical Photochemical Reactions
- Muon and positron interactions and applications
- Electrochemical Analysis and Applications
- Photopolymerization techniques and applications
- Solid-state spectroscopy and crystallography
- Semiconductor materials and devices
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Molecular Junctions and Nanostructures
- Photochemistry and Electron Transfer Studies
- Dyeing and Modifying Textile Fibers
- Luminescence and Fluorescent Materials
- Advanced NMR Techniques and Applications
Iowa State University
2019-2022
A new class of push–pull dyes based on the reactive isobenzofuran core have been synthesized. The a smaller HOMO–LUMO gap than related benzofurazan and allow for isolation structural factors that contribute to environmental sensitivity. Experimental theoretical evidence implicate different photophysical processes are responsible reversal emissive behavior is observed between analogues.
Self-assembled monolayers are predicated on thermodynamic equilibrium; hence, their properties project accessible relaxation pathways. Herein, we demonstrate that charge tunneling correlates with conformational degrees of freedom(s). Results from open chain and cyclic head groups show that, as expected, distribution in data the orientation group, akin to odd–even effect more importantly degree freedom, but fluctuates applied bias. Trends nature distributions current density illuminate need...
An unexpected nucleophilic aromatic substitution lead to a novel benzothiadiazole scaffold that bore the functional group pattern associated with benzyl-type photocleavable protecting groups. The new molecules display efficient photochemical release of leaving groups blue light. performance both ortho- and meta-substituted derivatives was probed through structural manipulation computational metrics improve performance.
Differentiation of heterocyclic isomers by solution 1H, 13C, and 15N NMR spectroscopy is often challenging due to similarities in their spectroscopic signatures. Here, 13C{14N} solid-state experiments are shown operate as an "attached nitrogen test", where easy distinguish based on one-dimensional nitrogen-filtered 13C NMR. We anticipate that these will facilitate the assignment during synthesis natural product discovery.
Abstract A new design strategy to control the efficiency of a photocleavage reaction based on changing nature excited state is presented. novel class photoactive compounds has been synthesized by combining classical o ‐nitrobenzyl scaffold with an environmentally sensitive dye, 4‐amino‐nitrobenzothiazole. Irradiation in polar solvent led that was inoperative for photochemistry whereas excitation nonpolar photochemically active. While our hypothesis tests true on/off photochemical process,...