Electron transfer

Definition

Electron transfer is a process by which an electron moves from one atom or molecule to another. It is a key concept in redox chemistry – the chemistry of reactions where one reaction partner loses electrons (oxidation) while the other gains electrons (reduction).

Latest Research and Reviews

  • Research |

    Mononuclear gold(II) complexes are very labile (and thus very rare) species. Now, a gold(II) porphyrin complex has been isolated and characterized, and its reactivity towards dioxygen, nitrosobenzene and acids investigated. Owing to a second-order Jahn–Teller distortion, the gold atoms were found to adopt a 2+2 coordination mode in a planar N4 environment.

    • Sebastian Preiß
    • , Christoph Förster
    • , Sven Otto
    • , Matthias Bauer
    • , Patrick Müller
    • , Dariush Hinderberger
    • , Haleh Hashemi Haeri
    • , Luca Carella
    •  & Katja Heinze
  • Research |

    With recent and improved understanding of how nuclear and electronic degrees of freedom can interact with each other comes the opportunity to directly control electronic processes. Now it has been shown that ultrafast vibrational excitation can direct light-induced intramolecular electron transfer along a specific path.

    • Milan Delor
    • , Stuart A. Archer
    • , Theo Keane
    • , Anthony J. H. M. Meijer
    • , Igor V. Sazanovich
    • , Gregory M. Greetham
    • , Michael Towrie
    •  & Julia A. Weinstein
  • Research |

    The conversion efficiency of organic solar cells suffers from their low open-circuit voltages. Here, the authors expose a link between electron-vibrations coupling and non-radiative recombinations, derive a new limit for the efficiency of organic solar cells, and redefine their optimal optical gap.

    • Johannes Benduhn
    • , Kristofer Tvingstedt
    • , Fortunato Piersimoni
    • , Sascha Ullbrich
    • , Yeli Fan
    • , Manuel Tropiano
    • , Kathryn A. McGarry
    • , Olaf Zeika
    • , Moritz K. Riede
    • , Christopher J. Douglas
    • , Stephen Barlow
    • , Seth R. Marder
    • , Dieter Neher
    • , Donato Spoltore
    •  & Koen Vandewal
    Nature Energy 2, 17053
  • Research | | open

    The next level of miniaturization of electronic circuits calls for a connection between current single-molecule and traditional semiconductor processing technologies. Here, the authors show a method to prepare metal/molecule/silicon diodes that present high current rectification ratios exceeding 4,000.

    • Albert C. Aragonès
    • , Nadim Darwish
    • , Simone Ciampi
    • , Fausto Sanz
    • , J. Justin Gooding
    •  & Ismael Díez-Pérez

News and Comment

  • News and Views |

    Helium, the 'most noble' of the noble gases, had only been coaxed into forming molecular ions or van der Waals compounds. It has now been seen in a stable solid compound, Na2He, under high pressure.

    • Maosheng Miao
    Nature Chemistry 9, 409–410
  • News and Views |

    Charge transfer through DNA has been well studied over recent decades from both a biological and electronics perspective. It has now been shown that charge transfer can be accelerated one hundredfold by using highly energetic 'hot holes', revealing a new mechanism that could help to create useful electronic biomaterials.

    • D. N. Beratan
    •  & D. H. Waldeck
    Nature Chemistry 8, 992–993
  • News and Views |

    Electron transfer is ubiquitous across both life and modern technologies, and thus being able to control it is an attractive goal. Now, targeted infrared excitation has been used to modulate the efficiency of electron transfer in a series of donor–bridge–acceptor molecules.

    • Igor V. Rubtsov
    Nature Chemistry 7, 683–684
  • News and Views |

    Molecules can transfer charge between electron donors and acceptors, and can also transport charge when connected between metallic electrodes. These processes are assumed to show generally similar trends, however, a significant departure from this has now been observed in a series of biphenyl bridges.

    • Gemma C. Solomon
    Nature Chemistry 7, 621–622
  • News and Views |

    A better understanding of electron transfer through molecules could provide the basis for many technological breakthroughs. Now, the rate of electron transfer has been enhanced in a family of molecules by making them more rigid, and this phenomenon may be explained by the loss of electronic energy to vibrations.

    • John R. Miller
    Nature Chemistry 6, 854–855