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Diels–Alder reaction on perylenediimides: synthesis and theoretical study of core-expanded diimides

(Un)substituted perylenediimides react with (un)functionalized benzynes yielding core-expanded diimides.
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Near-Infrared Photoelectrochemical Conversion via Photoinduced Charge Separation in Supramolecular Complexes of Anionic Phthalocyanines with Li(+)@C60.

The IPCE (incident photon-to-photocurrent efficiency) values of OTE/SnO2/(ZnPc·4(4-)/Li(+)@C60)n were much higher than the sum of the two IPCE values of the individual systems OTE/, and the small electronic coupling term results from the spin-forbidden back electron transfer due to the triplet CS state.
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The 4,4'-(1,2-ethanediyl)bisbenzyl biradical: its generation, detection, and (photo)chemical behavior in solution.

Two-laser two-color flash photolysis shows that biradical 2 is photostable in solution at room temperature, and formation of p-xylylene (1) from 2 occurs neither thermally nor photochemically.
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Bond dissociation energies for radical dimers derived from highly stabilized carbon-centered radicals.

The temperature dependence of the dissociation of dimers formed from highly stabilized carbon-centered radicals has been examined and the bond dissociation energy (BDE) for the central head-to-head C-C bond in these compounds is found.
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Temperature-dependent photochemistry of 1,3-diphenylpropenes. The di-pi-methane reaction revisited.

Kinetic modeling of temperature-dependent singlet decay times and quantum yields of fluorescence, isomerization, di-pi-methane rearrangement, and nonradiative decay provides rate constants and activation parameters for each of the primary and secondary processes.
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Alkoxy-styryl DCDHF fluorophores.

A photostable dicyanomethylenedihydrofuran fluorophore which contains electron-donating alkoxy groups is described, which is highly environmentally-sensitive and enables the formation of dark states whose radical or triplet nature is ruled out.
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One- vs. Two-Photon Processes in the Photochemistry of 1,n-Dihaloalkanes

1,n-Dihaloalkanes can be photochemical precursors of n-haloalkyl and -allyl radicals and cations, which are generated via one-photon processes. Time-resolved techniques have provided considerable…
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Generation and Reactivity Toward Oxygen of Carbon‐Centered Radicals Containing Indane, Indene, and Fluorenyl Moieties.

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Laser ultrasonic receivers based on organic photorefractive polymer composites

We present two laser ultrasonic receivers based on organic photorefractive polymer composites with 2-[4-bis(2-methoxyethyl)aminobenzylidene]malononitrile (AODCST) or…
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Solvent-Free Off-On Detection of the Improvised Explosive Triacetone Triperoxide (TATP) with Fluorogenic Materials.

A fluorogenic perylenediimide-functionalized polyacrylate capable of generating color and fluorescence changes in the presence of triacetone triperoxide TATP), an improvised explosive used in…
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