ChemPhysChem

Cover image for Vol. 10 Issue 1

January 12, 2009

Volume 10, Issue 1

Pages 1–302

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Editorials
    4. Graphical Abstract
    5. News
    6. Editorial
    7. Review
    8. Minireviews
    9. Communications
    10. Articles
    11. Preview
    1. Cover Picture: (ChemPhysChem 1/2009) (page 1)

      Version of Record online: 7 JAN 2009 | DOI: 10.1002/cphc.200990000

      Thumbnail image of graphical abstract

      In this special issue, the cover picture represents various physical chemistry disciplines covered by our board members. Their research is highlighted in this special issue and covers, amongst others, molecular machines, spectroscopy, molecular photophysics, reaction mechanisms, and electrochemistry.

  2. Editorials

    1. Top of page
    2. Cover Picture
    3. Editorials
    4. Graphical Abstract
    5. News
    6. Editorial
    7. Review
    8. Minireviews
    9. Communications
    10. Articles
    11. Preview
    1. You have free access to this content
      Editorial: Commemorative Issue (page 3)

      Peter Gölitz, Melanie de Souza, Kira Welter and Greta Heydenrych

      Version of Record online: 7 JAN 2009 | DOI: 10.1002/cphc.200800825

    2. You have free access to this content
      Editorial: Pushing Through Interdisciplinary Boundaries (page 4)

      Frans C. De Schryver and James T. (Casey) Hynes

      Version of Record online: 7 JAN 2009 | DOI: 10.1002/cphc.200800824

    3. You have free access to this content
  3. Graphical Abstract

    1. Top of page
    2. Cover Picture
    3. Editorials
    4. Graphical Abstract
    5. News
    6. Editorial
    7. Review
    8. Minireviews
    9. Communications
    10. Articles
    11. Preview
  4. News

    1. Top of page
    2. Cover Picture
    3. Editorials
    4. Graphical Abstract
    5. News
    6. Editorial
    7. Review
    8. Minireviews
    9. Communications
    10. Articles
    11. Preview
  5. Editorial

    1. Top of page
    2. Cover Picture
    3. Editorials
    4. Graphical Abstract
    5. News
    6. Editorial
    7. Review
    8. Minireviews
    9. Communications
    10. Articles
    11. Preview
    1. You have free access to this content
  6. Review

    1. Top of page
    2. Cover Picture
    3. Editorials
    4. Graphical Abstract
    5. News
    6. Editorial
    7. Review
    8. Minireviews
    9. Communications
    10. Articles
    11. Preview
    1. Electron and X-Ray Methods of Ultrafast Structural Dynamics: Advances and Applications (pages 28–43)

      Majed Chergui and Ahmed H. Zewail

      Version of Record online: 7 JAN 2009 | DOI: 10.1002/cphc.200800667

      Thumbnail image of graphical abstract

      State of the art techniques: Ultrafast electron microscopy and X-ray diffraction methods (see figure) unravel structural dynamics with atomic-scale resolution in systems ranging from small molecules to crystals and from materials to biological assemblies. The applications span structures in the gas phase and at interfaces as well as in the condensed phase.

  7. Minireviews

    1. Top of page
    2. Cover Picture
    3. Editorials
    4. Graphical Abstract
    5. News
    6. Editorial
    7. Review
    8. Minireviews
    9. Communications
    10. Articles
    11. Preview
    1. Diffusion in Confined Geometries (pages 45–54)

      P. Sekhar Burada, Peter Hänggi, Fabio Marchesoni, Gerhard Schmid and Peter Talkner

      Version of Record online: 21 NOV 2008 | DOI: 10.1002/cphc.200800526

      Thumbnail image of graphical abstract

      A tight squeeze: The mathematical formalism for modelling the diffusion of a Brownian particle immersed in a confined suspension fluid (picture) is outlined. Particle transport along a channel subject to stationary pumping is described. A review of results for the diffusion of a single file along a periodically corrugated channel (picture, bottom) is presented.

    2. DCDHF Fluorophores for Single-Molecule Imaging in Cells (pages 55–65)

      Samuel J. Lord, Nicholas R. Conley, Hsiao-lu D. Lee, Stefanie Y. Nishimura, Andrea K. Pomerantz, Katherine A. Willets, Zhikuan Lu, Hui Wang, Na Liu, Reichel Samuel, Ryan Weber, Alexander Semyonov, Meng He, Robert J. Twieg and W. E. Moerner

      Version of Record online: 21 NOV 2008 | DOI: 10.1002/cphc.200800581

      Thumbnail image of graphical abstract

      Push–pull fluorophores: The photophysics of DCDHF fluorophores (see figure) are tuned and measured for optimization for imaging in living cells. The fluorophores are comparatively photostable, exhibit sensitivity to their local environment, and can be re-engineered to introduce more sophisticated photophysics (e.g. photoactivation).

    3. Progress in Mimetic Studies of Cell Adhesion and the Mechanosensing (pages 66–78)

      Ana-Sunčana Smith and Erich Sackmann

      Version of Record online: 29 DEC 2008 | DOI: 10.1002/cphc.200800683

      Thumbnail image of graphical abstract

      Cell-adhesion process: Recent experimental and theoretical advances in understanding the cell-adhesion process and its control mechanisms (see figure) are discussed. Manipulating the physical environment of the ligand–receptor bonds, by introducing forces or varying the mobility of binders, has a strong effect on the organization and response of the bonds.

    4. Laser Microbeams and Optical Tweezers in Ageing Research (pages 79–85)

      Paulius Grigaravičius, Karl Otto Greulich and Shamci Monajembashi

      Version of Record online: 17 DEC 2008 | DOI: 10.1002/cphc.200800725

      Thumbnail image of graphical abstract

      Optical microtools are used to study the interplay between Ca2+ and NO in blood-pressure regulation as well as the early kinetics of DNA repair, particularly, the switch between a precise and an error-prone repair pathway. The figure shows changes in the fluorescence intensity during the recruitment of the DNA repair proteins OGG1 (green) and NBS1 (red) after laser irradiation.

    5. Nonequilibrium Microstructures in Reactive Monolayers as Soft Matter Systems (pages 86–100)

      Alexander S. Mikhailov and Gerhard Ertl

      Version of Record online: 28 NOV 2008 | DOI: 10.1002/cphc.200800277

      Thumbnail image of graphical abstract

      Structures far from equilibrium: Interplay between reactions, diffusion and phase transitions at metal–air and liquid–air interfaces leads to a wealth of nonequilibrium structures, such as the growing microstructure in a simulation of a catalytic reaction coupled to a surface phase transition shown here. Similar phenomena can provide the basis for a new generation of microtechnology employing nonequilibrium soft matter.

    6. Excited-State Dynamics of Isolated DNA Bases: A Case Study of Adenine (pages 101–110)

      Christer Z. Bisgaard, Helmut Satzger, Susanne Ullrich and Albert Stolow

      Version of Record online: 13 NOV 2008 | DOI: 10.1002/cphc.200800516

      Thumbnail image of graphical abstract

      Ultrafast dynamics: An overview of the UV photophysics of the isolated DNA base adenine is presented. The authors use their recent femtosecond time-resolved photoelectron spectroscopy experiments (see spectra) to shed light on the mechanisms behind the ultra-fast electronic relaxation from the initially excited state.

  8. Communications

    1. Top of page
    2. Cover Picture
    3. Editorials
    4. Graphical Abstract
    5. News
    6. Editorial
    7. Review
    8. Minireviews
    9. Communications
    10. Articles
    11. Preview
    1. Acoustic and Optical Modes of Single Dumbbells of Gold Nanoparticles (pages 111–114)

      Anna L. Tchebotareva, Meindert A. van Dijk, Paul V. Ruijgrok, Vincent Fokkema, Marcel H. S. Hesselberth, Markus Lippitz and Michel Orrit

      Version of Record online: 7 AUG 2008 | DOI: 10.1002/cphc.200800289

      Thumbnail image of graphical abstract

      Gold vibrations: A new elastic (stretching) mode, appearing in individual dumbbells of gold nanospheres at 5–7 GHz (see figure), is a function of the contact area. This can be used to estimate the contact area between the particles, which plays an important role in the local enhancement of electromagnetic fields in such nanoantenna structures.

    2. Modeling the Mechanical Response of Proteins to Anisotropic Deformation (pages 115–118)

      Sophie Sacquin-Mora and Richard Lavery

      Version of Record online: 12 NOV 2008 | DOI: 10.1002/cphc.200800480

      Thumbnail image of graphical abstract

      Protein anisotropic mechanical behaviour: An elastic network model of the green fluorescent protein, in line with earlier single molecule experiments, shows considerable structure-dependent anisotropy in its mechanical response to forces applied to different pairs of residues. The arrows in the figure are proportional to the calculated force constants.

    3. Origins of Material Failure in Siloxane Elastomers from First Principles (pages 119–123)

      Elizabeth M. Lupton, Frank Achenbach, Johann Weis, Christoph Bräuchle and Irmgard Frank

      Version of Record online: 17 NOV 2008 | DOI: 10.1002/cphc.200800094

      Thumbnail image of graphical abstract

      Material failure under tensile stress limits the range of technical applications of siloxane materials. By using first-principles simulations, the authors show that a single siloxane chain can tolerate high mechanical load, but once it is broken, the resulting ions easily attack neighboring chains, thus destabilizing the network (see figure; Si: grey, O: red, C: black, H: gold).

  9. Articles

    1. Top of page
    2. Cover Picture
    3. Editorials
    4. Graphical Abstract
    5. News
    6. Editorial
    7. Review
    8. Minireviews
    9. Communications
    10. Articles
    11. Preview
    1. Towards in Silico Liquid Crystals. Realistic Transition Temperatures and Physical Properties for n-Cyanobiphenyls via Molecular Dynamics Simulations (pages 125–136)

      Giustiniano Tiberio, Luca Muccioli, Roberto Berardi and Claudio Zannoni

      Version of Record online: 25 AUG 2008 | DOI: 10.1002/cphc.200800231

      Thumbnail image of graphical abstract

      Virtual nematics: The nematic–isotropic transition temperatures of one of the one most popular liquid crystal families are reproduced here by molecular dynamics simulations with great accuracy (picture). The odd–even effect registered when increasing the number n of alkyl chain atoms is interpreted in terms of the average distribution of molecular shapes.

    2. Ordered Polyelectrolyte Multilayers: Unidirectional FRET Cascade in Nanocompartmentalized Polyelectrolyte Multilayers (pages 137–143)

      Sébastien Peralta, Jean-Louis Habib-Jiwan and Alain M. Jonas

      Version of Record online: 8 OCT 2008 | DOI: 10.1002/cphc.200800443

      Thumbnail image of graphical abstract

      Light-harvesting anntenna: A cascade of two FRET processes occurs in a system of nanocompartments containing different small-molecule dyes. Light energy is collected in the first compartment, sent nonradiatively to a second compartment, and finally transferred to a third compartment located at the external surface of the film (see picture; the colored lines represent chains of the different polymers used to construct the device).

    3. Protochlorophyllide a: A Comprehensive Photophysical Picture (pages 144–150)

      Benjamin Dietzek, Stefanie Tschierlei, Gudrun Hermann, Arkady Yartsev, Torbjörn Pascher, Villy Sundström, Michael Schmitt and Jürgen Popp

      Version of Record online: 15 OCT 2008 | DOI: 10.1002/cphc.200800536

      Thumbnail image of graphical abstract

      The light-induced excited-state of protochlorophyllide a is efficiently quenched by population of a triplet state (see figure). It is proposed, that this de-excitation channel in free protochlorophyllide is hindered by interactions with the protein moiety in the enzyme-substrate complex of the protochlorophyllide reductase.

    4. Linking Phospholipase Mobility to Activity by Single-Molecule Wide-Field Microscopy (pages 151–161)

      Susana Rocha, James A. Hutchison, Kalina Peneva, Andreas Herrmann, Klaus Müllen, Michael Skjøt, Christian I. Jørgensen, Allan Svendsen, Frans C. De Schryver, Johan Hofkens and Hiroshi Uji-i

      Version of Record online: 4 DEC 2008 | DOI: 10.1002/cphc.200800537

      Thumbnail image of graphical abstract

      Single Enzymes at Work: Single-particle tracking is used to follow the diffusion of individual phospholipase enzymes acting on phospholipid bilayers, while simultaneously visualising local structural changes to those layers (see image). By comparison with related enzymes with different behaviour, the diffusive motions of the enzyme can be linked to different stages in its catalytic cycle.

    5. Reconfigurable Logic Devices on a Single Dopant Atom—Operation up to a Full Adder by Using Electrical Spectroscopy (pages 162–173)

      Michael Klein, Gabriel P. Lansbergen, Jan A. Mol, Sven Rogge, Raphael D. Levine and Francoise Remacle

      Version of Record online: 29 DEC 2008 | DOI: 10.1002/cphc.200800568

      Thumbnail image of graphical abstract

      A full adder is implemented on a single dopant in a silicon FinFET. The logic design is based on the concatenation of two half adders, as shown on the conductance map. The design takes advantage of the excited states of the dopant atom.

    6. Imaging Local Proton Fluxes through a Polycarbonate Membrane by Using Scanning Electrochemical Microscopy and Functionalized Alkanethiols (pages 174–179)

      Norman Baltes and Jürgen Heinze

      Version of Record online: 12 DEC 2008 | DOI: 10.1002/cphc.200800598

      Thumbnail image of graphical abstract

      Imaging transport phenomena: A new technique—based on scanning electrochemical microscopy—is developed for imaging proton fluxes across porous membranes. The high pH sensitivity of a carboxylic acid-modified ultramicroelectrode (UME) to the current response during the oxidation of a hexacyanoferrate mediator can be used to monitor local proton fluxes (see picture).

    7. Photophysics of New Water-Soluble Terrylenediimide Derivatives and Applications in Biology (pages 180–190)

      Christophe Jung, Nadia Ruthardt, Robert Lewis, Jens Michaelis, Beate Sodeik, Fabian Nolde, Kalina Peneva, Klaus Müllen and Christoph Bräuchle

      Version of Record online: 15 DEC 2008 | DOI: 10.1002/cphc.200800628

      Thumbnail image of graphical abstract

      New ultra-photostable dyes: Three new water-soluble terrylenediimide derivatives emit a bright fluorescence signal in the red part of the visible spectrum and exhibit an outstanding resistance against photobleaching compared to other dyes. These fluorophores can be used in biological experiments for cell-membrane staining as well as virus- or DNA-labeling.

    8. Concerted and Stepwise Proton-Coupled Electron Transfers in Aquo/Hydroxo Complex Couples in Water: Oxidative Electrochemistry of [OsII(bpy)2(py)(OH2)]2+ (pages 191–198)

      Cyrille Costentin, Marc Robert, Jean-Michel Savéant and Anne-Lucie Teillout

      Version of Record online: 24 SEP 2008 | DOI: 10.1002/cphc.200800361

      Thumbnail image of graphical abstract

      To be or not to be concerted. That is the question. Successive oxidation of transition metal(II) aqua complexes (MIIOH2 to MIIIOH) is a domain in which proton-coupled electron-transfer reactions are extremely common (see figure). The concerted (CPET) or stepwise (EPT, PET) character of the mechanism is an important fundamental issue for understanding and designing natural or artificial catalytic systems.

    9. How Fast is a Fast Equilibrium? A New View of Reversible Reactions (pages 199–205)

      Carlos Baleizão and Mário N. Berberan-Santos

      Version of Record online: 2 SEP 2008 | DOI: 10.1002/cphc.200800350

      Thumbnail image of graphical abstract

      Kinetic cycles are used for the description of reversible reactions, and allow answering the question “How fast is a fast equilibrium?” in both absolute and relative terms. The approach is applied to processes drawn from several areas, such as acid–base equilibria, enzyme kinetics, thermally activated delayed fluorescence (see graph for application to C70), monomer–excimer kinetics, and homo-FRET.

    10. Binding of DNA Nucleobases and Nucleosides with Graphene (pages 206–210)

      Neenu Varghese, Umesha Mogera, Achutharao Govindaraj, Anindya Das, Prabal K. Maiti, Ajay K. Sood and C. N. R. Rao

      Version of Record online: 22 SEP 2008 | DOI: 10.1002/cphc.200800459

      Thumbnail image of graphical abstract

      DNA interactions: Isothermal titration calorimetric experiments and calculations including van der Waals interaction and solvation energies give the relative interaction energies of DNA nucleobases and nucleosides with graphene. The figure shows the integrated heat of reaction for each injection of nucleobase. The order of relative binding energies of nucleobases with graphene is found to be G>A>C>T.

    11. Theory of Ion Transport in Electrochemically Switchable Nanoporous Metallized Membranes (pages 211–221)

      Christian Amatore, Alexander I. Oleinick and Irina Svir

      Version of Record online: 19 NOV 2008 | DOI: 10.1002/cphc.200800481

      Thumbnail image of graphical abstract

      Electrostatic interplay: A theory of electrochemically driven selective ion transport for 1:1 electrolytes in switchable metal-coated nanoporous membranes quantifies the crucial role of overlapping diffuse layers. The transference numbers predicted with the model agree well with available experimental data (see figure).

    12. Surface Viscoelasticity of Concentrated Salt Solutions: Specific Ion Effects (pages 222–225)

      Mahassine Safouane and Dominique Langevin

      Version of Record online: 12 DEC 2008 | DOI: 10.1002/cphc.200800527

      Thumbnail image of graphical abstract

      Ions, behave! Electrically excited capillary waves are used to investigate the possible influence of ions on the rheological properties of the air–water interface (see picture). Interesting effects are observed at very high ion concentrations (>2 M). These effects are ion-specific and remain to be explained.

    13. The Effect of Platinum on Diffusion Kinetics in β-NiAl: Implications for Thermal Barrier Coating Lifetimes (pages 226–235)

      Kristen A. Marino and Emily A. Carter

      Version of Record online: 7 JAN 2009 | DOI: 10.1002/cphc.200800528

      Thumbnail image of graphical abstract

      Diffusion enhancement: It is predicted that Pt enhances Ni and Al diffusion in NiAl, thereby lengthening thermal barrier coating lifetimes. Density functional calculations reveal that Pt dopants draw electrons away from host atoms and stabilize the formation of defects that are key participants in Ni and Al transport in NiAl (see figure).

      Corrected by:

      Corrigendum: The Effect of Platinum on Diffusion Kinetics in β-NiAl: Implications for Thermal Barrier Coating Lifetimes

      Vol. 10, Issue 14, 2367, Version of Record online: 28 SEP 2009

    14. Influence of Ions on Aqueous Acid–Base Reactions (pages 236–244)

      M. Jocelyn Cox, Bradley J. Siwick and Huib J. Bakker

      Version of Record online: 7 JAN 2009 | DOI: 10.1002/cphc.200800406

      Thumbnail image of graphical abstract

      Hoppity-hop: The effects of bromide salts on the rate and mechanism of the aqueous proton/deuteron-transfer reaction between the photoacid 8-hydroxy-1,3,6-pyrenetrisulfonic acid (HPTS) and the base acetate are investigated (see picture) and two reaction channels are identified.

    15. Effect of Confinement on Proton-Transfer Reactions in Water Nanopools (pages 245–251)

      Klaas Jan Tielrooij, M. Jocelyn Cox and Huib J. Bakker

      Version of Record online: 7 JAN 2009 | DOI: 10.1002/cphc.200800541

      Thumbnail image of graphical abstract

      Using sub-picosecond resolution pump-probe spectroscopy, optically triggered proton-transfer from a photoacid to the water solvent in nanometer-sized reverse micelles is investigated (see figure). Due to confinement, the proton transfer is slowed down. Additionally, for some photoacid molecules proton transfer is prevented by a specific interaction with the surfactant molecules of the reverse micelle.

    16. Photovoltaic activity of Ti/MCM-41 (pages 252–256)

      Pedro Atienzar, Maite Navarro, Avelino Corma and Hermenegildo Garcia

      Version of Record online: 22 OCT 2008 | DOI: 10.1002/cphc.200800548

      Thumbnail image of graphical abstract

      More than just a catalyst: The unprecedented photovoltaic activity of Ti/MCM-41 (see graphic), reaching overall and specific efficiency values in the same range as those achieved using current state-of-the-art cells, is described. This observation opens the way to develop other systems in which photovoltaic activity arises from isolated sites in a solid rather than in the bulk material.

    17. Electron Transport through Conjugated Molecules: When the π System Only Tells Part of the Story (pages 257–264)

      Gemma C. Solomon, David Q. Andrews, Richard P. Van Duyne and Mark A. Ratner

      Version of Record online: 29 DEC 2008 | DOI: 10.1002/cphc.200800591

      Thumbnail image of graphical abstract

      Model calculations of electron transport through conjugated molecules performed considering only the π system are incapable of capturing the complexities of charge transport in situations where the σ system no longer plays an inconsequential role. The figure shows the angle dependence of the transmission through a cross-conjugated molecule with a nitro substituent.

    18. Dendrimers with a Pentaphenylene Core: A Photophysical Study (pages 265–269)

      Giacomo Bergamini, Paola Ceroni, Vincenzo Balzani, Ramchandra Kandre and Oleg Lukin

      Version of Record online: 26 NOV 2008 | DOI: 10.1002/cphc.200800597

      Thumbnail image of graphical abstract

      A plodding dendrimer: Intense violet luminescence both in solution and in the solid state is shown by a family of dendrimers with a p-pentaphenylene core and sulfonimide branches. The fourth-generation dendrimer (see image) has an extremely high steady-state fluorescence anisotropy in dichloromethane solution at 293 K.

    19. Identification of Hydroxyl on Ni(111) (pages 270–275)

      Junjun Shan, Aart W. Kleyn and Ludo B. F. Juurlink

      Version of Record online: 9 DEC 2008 | DOI: 10.1002/cphc.200800610

      Thumbnail image of graphical abstract

      Hydroxyl formation is studied on Ni(111) by high-resolution electron energy loss spectroscopy (see graph). Both the annealing of water with co-adsorbed atomic oxygen and the exposure of pure water to electrons generate OH on the Ni(111) surface. The results indicate that OH does not take part in any hydrogen-bonding networks.

    20. Femtosecond to Subnanosecond Multistep Calcium Photoejection from a Crown Ether-Linked Merocyanine (pages 276–281)

      Christian Ley, Fabien Lacombat, Pascal Plaza, Monique M. Martin, Isabelle Leray and Bernard Valeur

      Version of Record online: 19 NOV 2008 | DOI: 10.1002/cphc.200800612

      Thumbnail image of graphical abstract

      Controlled release of metal cations: After photodisruption of the interaction between a calcium ion and the nitrogen atom of an azacrown ether linked to a merocyanine, a 670 ps time-resolved red shift of the stimulated emission spectrum of the charge-transfer state is observed, which provides evidence for the motion of the cation away from the crown to the bulk (see figure).

    21. Scaled MP3 Non-Covalent Interaction Energies Agree Closely with Accurate CCSD(T) Benchmark Data (pages 282–289)

      Michal Pitoňák, Pavel Neogrády, Jiří Černý, Stefan Grimme and Pavel Hobza

      Version of Record online: 29 DEC 2008 | DOI: 10.1002/cphc.200800718

      Thumbnail image of graphical abstract

      Good agreement: Scaled MP3 interaction energies calculated as a sum of MP2/CBS (complete basis set limit) interaction energies and the scaled third-order energy contributions obtained in small- or medium-size basis sets, agree very closely with the estimated CCSD(T)/CBS interaction energies of various H-bonded and dispersion controlled (stacked) complexes (see figure).

    22. The Influence of Charge Transport and Recombination on the Performance of Dye-Sensitized Solar Cells (pages 290–299)

      Mingkui Wang, Peter Chen, Robin Humphry-Baker, Shaik M. Zakeeruddin and Michael Grätzel

      Version of Record online: 29 DEC 2008 | DOI: 10.1002/cphc.200800708

      Thumbnail image of graphical abstract

      Dye-sensitized solar cells: The photoelectrochemical and transient electron behaviour of dye-sensitized solar cells with different hole-transporting materials, including liquid electrolytes, ionic liquids and organic solid-state hole conductors, are investigated by impedance (see figure showing phase angle from impedance measurements) and photovoltage transient decay measurements.

  10. Preview

    1. Top of page
    2. Cover Picture
    3. Editorials
    4. Graphical Abstract
    5. News
    6. Editorial
    7. Review
    8. Minireviews
    9. Communications
    10. Articles
    11. Preview
    1. Preview: ChemPhysChem 2/2009 (page 302)

      Version of Record online: 7 JAN 2009 | DOI: 10.1002/cphc.200990002

SEARCH

SEARCH BY CITATION