The official journal of the European Photochemistry Association, the European Society for Photobiology, the Asia and Oceania Society for Photobiology and the Korean Society of Photoscience.
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Issue 5 2008 Chemical Biology now published
18 April 2008
Drawing together coverage from all RSC publications, providing an overview of the latest developments in chemical biology.
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15 April 2008
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Contents list for Photochemical & Photobiological Sciences, issue 5, 2008
Front cover
Photochem. Photobiol. Sci., 2008, 7, 505
DOI: 10.1039/B806479M
Contents and Chemical Biology
Photochem. Photobiol. Sci., 2008, 7, 507
DOI: 10.1039/B806480F
Editorial
Introduction to the themed issue in honour of Jakob Wirz
Photochem. Photobiol. Sci., 2008, 7, 519
DOI: 10.1039/b803876g
A short biography of Jakob Wirz.
Perspective
Challenges and opportunities for photochemists on the verge of solar energy conversion
Cheng-Che Chu and Dario M. Bassani,
Photochem. Photobiol. Sci., 2008, 7, 521
DOI: 10.1039/b800113h
Turning water into fuel? Photochemists light the way!
Communication
Vibrational deactivation of singlet oxygen: does it play a role in stereoselectivity during photooxygenation?
Marissa Solomon, J. Sivaguru, Steffen Jockusch, Waldemar Adam and Nicholas J. Turro,
Photochem. Photobiol. Sci., 2008, 7, 531
DOI: 10.1039/b719387d
Oxazolidinone-substituted enecarbamates offer a system to explore vibrational quenching and the strategic placement of CH bonds as a method for manipulating the stereoselectivity of photoreactions.
Papers
Getting to guanine: mechanism and dynamics of charge separation and charge recombination in DNA revisited
Frederick D. Lewis, Huihe Zhu, Pierre Daublain, Karsten Sigmund, Torsten Fiebig, Milen Raytchev, Qiang Wang and Vladimir Shafirovich,
Photochem. Photobiol. Sci., 2008, 7, 534
DOI: 10.1039/b719715b
The mechanism for photo-oxidation of guanine (G) by stilbene (Sa) in a DNA hairpin is revised from single-step superexchange (dashed arrow) to multi-step hole transport (solid arrows).
Biradicals by triplet recombination of radical ion pairs
Heinz D. Roth,
Photochem. Photobiol. Sci., 2008, 7, 540
DOI: 10.1039/b800524a
Radical ion pairs undergo return electron transfer in pairs of singlet or triplet multiplicity with cleavage or formation of C–C bonds.
Inhibitory effect of dissolved organic matter on triplet-induced oxidation of aquatic contaminants
Silvio Canonica and Hans-Ulrich Laubscher,
Photochem. Photobiol. Sci., 2008, 7, 547
DOI: 10.1039/b719982a
Photosensitized oxidation of aquatic organic contaminants is inhibited by dissolved natural organic matter (DOM), which probably reduces the oxidation intermediates of the contaminants back to their parent compounds.
Ultrafast studies of some diarylcarbenes
Jin Wang, Yunlong Zhang, Jacek Kubicki and Matthew S. Platz,
Photochem. Photobiol. Sci., 2008, 7, 552
DOI: 10.1039/b800041g
Ultrafast studies of two diarylcarbenes.
Theoretical and experimental study of the Norrish I photodissociation of aromatic ketones
Céline Dietlin, Xavier Allonas, Albert Defoin and Jean-Pierre Fouassier,
Photochem. Photobiol. Sci., 2008, 7, 558
DOI: 10.1039/b800546j
A set of selected acetophenone derivatives has been investigated using absorption and emission spectroscopy, laser flash photolysis and DFT calculations.
Triplet and ground state potential energy surfaces of 1,4-diphenyl-1,3-butadiene: theory and experiment
J. Saltiel, O. Dmitrenko, Z. S. Pillai, R. Klima, S. Wang, T. Wharton, Z.-N. Huang, L. J. van de Burgt and J. Arranz,
Photochem. Photobiol. Sci., 2008, 7, 566
DOI: 10.1039/b801075g
Idealized potential energy diagrams for twisting about the C1C2 and C3C4 bonds of 1,4-diphenyl-1,3-butadiene in S0 and T1; values given are experimental energies.
The photochemistry of some main chain liquid crystalline 4,4
-stilbene dicarboxylate polyesters
Alline P. Somlai, Richard A. Cozad, Kirt A. Page, Holly R. Williams, David Creed and Charles E. Hoyle,
Photochem. Photobiol. Sci., 2008, 7, 578
DOI: 10.1039/b719409a
Fluorescent ground state aggregates are most probably intermediates in the 2 + 2 photocycloaddition and crosslinking reactions of several liquid crystalline polymers with stilbene chromophores as mesogenic groups.
Formal intramolecular photoredox chemistry of anthraquinones in aqueous solution: photodeprotection for alcohols, aldehydes and ketones
Yunyan Hou and Peter Wan,
Photochem. Photobiol. Sci., 2008, 7, 588
DOI: 10.1039/b718970b
The water-mediated intramolecular photoredox chemistry of 2-substituted anthraquinones is explored further and shown to be useful for photodeprotection of alcohols, aldehydes and ketones.
Photoinduced electron-transfer in perylenediimide triphenylamine-based dendrimers: single photon timing and femtosecond transient absorption spectroscopy
Eduard Fron, Roberto Pilot, Gerd Schweitzer, Jianqiang Qu, Andreas Herrmann, Klaus Müllen, Johan Hofkens, Mark Van der Auweraer and Frans C. De Schryver,
Photochem. Photobiol. Sci., 2008, 7, 597
DOI: 10.1039/b718479d
A reversible charge transfer occurring from the peripheral triphenylamine to the electron acceptor perylenedimide core is investigated using femtosecond pump–probe and pump–dump–probe transient absorption techniques.
One- and two-photon induced QD-based energy transfer and the influence of multiple QD excitations
Smita Dayal and Clemens Burda,
Photochem. Photobiol. Sci., 2008, 7, 605
DOI: 10.1039/b800040a
Enhanced HTML article available
The effect of multiple excitations on the energy transfer from QDs to phthalocyanine acceptors was studied upon excitation with 500 and 1100 nm wavelength, respectively.
Fluorinated photoremovable protecting groups: the influence of fluoro substituents on the photo-Favorskii rearrangement
Kenneth F. Stensrud, Dominik Heger, Peter 
ebej, Jakob Wirz and Richard S. Givens,
Photochem. Photobiol. Sci., 2008, 7, 614
DOI: 10.1039/b719367j
The photolysis of a series of fluoro-p-hydroxyphenacyl GABA efficiently and rapidly are transformed into free GABA and twisted triplet biradicals that decay into Favorskii rearrangement products.
Photochemical synthesis of substituted indan-1-ones related to donepezil
Tomá
Pospíil, Aneesh Tazhe Veetil, Lovely Angel Panamparambil Antony and Petr Klán,
Photochem. Photobiol. Sci., 2008, 7, 625
DOI: 10.1039/b719760h
A photoenolization reaction is shown to be the key reaction step in the preparation of substituted indan-1-ones as convenient precursors for the synthesis of acetylcholinesterase inhibitor donepezil.
Intramolecular exciplexes based on benzoxazole: photophysics and applications as fluorescent cation sensors
Marek Mac, Tomasz Uchacz, Andrzej Danel, Miguel A. Miranda, Cecilia Paris and Uwe Pischel,
Photochem. Photobiol. Sci., 2008, 7, 633
DOI: 10.1039/b719141c
Novel electron-donor–acceptor systems have been synthesised and investigated by means of fluorescence and transient absorption techniques as well by simple electron transfer calculations.
Back matter
Photochem. Photobiol. Sci., 2008, 7, 642
DOI: 10.1039/B806481B
Back cover
Photochem. Photobiol. Sci., 2008, 7, 643
DOI: 10.1039/B806482M
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