Journal ArticleDOI
Excited-state intermolecular proton transfer of the firefly's chromophore D-luciferin.
Yuval Erez,Dan Huppert +1 more
TLDR
Steady-state absorption and emission as well as time-resolved emission spectroscopies were employed to study the photophysics and photochemistry of D-luciferin, the firefly active bioluminescent compound.Abstract:
Steady-state absorption and emission as well as time-resolved emission spectroscopies were employed to study the photophysics and photochemistry of d-luciferin, the firefly active bioluminescent coread more
Citations
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Journal ArticleDOI
Chemi- and Bioluminescence of Cyclic Peroxides.
Morgane Vacher,Ignacio Fernández Galván,Bo-Wen Ding,Stefan Schramm,Romain Berraud-Pache,Panče Naumov,Nicolas Ferré,Ya-Jun Liu,Isabelle Navizet,Daniel Roca-Sanjuán,Wilhelm J. Baader,Roland Lindh +11 more
TL;DR: A molecular-orbital perspective is adopted to explain the chemistry behind chemiexcitation in both chemi- and bioluminescence and should be an inspiration to human design of new molecular systems expressing unique light-emitting properties.
Journal ArticleDOI
Superior Photoprotective Motifs and Mechanisms in Eumelanins Uncovered
Alice Corani,Annemarie Huijser,Thomas Gustavsson,Dimitra Markovitsi,Per-Åke Malmqvist,Alessandro Pezzella,Marco d'Ischia,Villy Sundström +7 more
TL;DR: The discovery that DHICA-based scaffolds specifically confer uniquely robust photoprotective properties to natural eumelanins settles a fundamental gap in the biology of human pigmentation and opens the doorway to attractive advances and applications.
Journal ArticleDOI
Advances in the knowledge of light emission by firefly luciferin and oxyluciferin
TL;DR: The objective of this manuscript is to review the experimental studies of firefly luciferin and oxyluciferin, and related analogues, fluorescence and bioluminescence.
Journal ArticleDOI
Ultrafast excited-state proton transfer to the solvent occurs on a hundred-femtosecond time-scale.
TL;DR: It is found that the excited-state proton transfer (ESPT) to water occurs at the remarkably short time of about 100 fs, k(PT) ≈ 1 × 10(13) s(-1), the fastest rate reported up to now.
Journal ArticleDOI
Understanding and Controlling Organic–Inorganic Interfaces in Mesostructured Hybrid Photovoltaic Materials
Shany Neyshtadt,Justin P. Jahnke,Robert J. Messinger,Aditya Rawal,T. Segal Peretz,Dan Huppert,B. F. Chmelka,Gitti L. Frey +7 more
TL;DR: Molecular understanding of the compositions and chemical interactions at organic-inorganic interfaces are shown to enable the design, synthesis, and control of the photovoltaic properties of hybrid functional materials.
References
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Journal ArticleDOI
Excited-state proton transfer: from constrained systems to "super" photoacids to superfast proton transfer.
TL;DR: This work has used knowledge of the electronic structure of excited states of acids to design molecules that exhibit enhanced excited-state acidity and are the strongest reversible photoacids known.
Book ChapterDOI
Acid-Base Properties of Electronically Excited States of Organic Molecules
J.F. Ireland,P. A. H. Wyatt +1 more
TL;DR: In this paper, the acid-base properties of electronically excited states of organic molecules are discussed and the effects of solvation on 0-0 energies are discussed. And the changes in molecular fluorescence with acidity give information about the protolytic behavior of the excited singlet state of a compound.
Journal ArticleDOI
Elementary steps in excited-state proton transfer.
TL;DR: The theory for these diffusion-influenced geminate reactions has been developed, showing nice agreement with experiment, and the effect of inert salts, bases, and acids on these reactions is analyzed.
Journal ArticleDOI
Sequential proton transfer through water bridges in acid-base reactions.
TL;DR: Proton exchange between an acid and a base in aqueous solution is shown to proceed by a sequential, von Grotthuss–type, proton-hopping mechanism through water bridges.
Journal ArticleDOI
Femtosecond solvation dynamics in acetonitrile: Observation of the inertial contribution to the solvent response
TL;DR: In this paper, the authors characterized the solvation dynamics of acetonitrile by a time resolved fluorescence shift measurement determined via the fluorescence upconversion technique, and showed that the fast initial part of the solvent response arises from small amplitude inertial rotational motion of molecules in the first solvation shell.