My watch list
my.chemeurope.com  
Login  

Making hydrogen a metal mimic

28-Nov-2013

Scientists have tricked hydrogen into structurally behaving like a metal for the first time, and proven elemental equivalence.

With a single ‘s’ electron, hydrogen is chemically analogous to the group 1 alkali metals in the periodic table, but it typically exhibits pronounced structural differences under ambient conditions. Some similarities have been demonstrated with lithium, the smallest and lightest group 1 metal that has more covalent character, but comparable participation in the solid state has remained elusive.

Now, scientists at the University of Bath in the UK have developed an elegant synthetic strategy to form a pseudocubane motif of ammonium tris(phenol) ligands and lithium or sodium atoms, where one of the latter metals has been replaced by a hydrogen atom. The hydrogen forms the rarely-reported trifurcated 4-centre hydrogen bond. This sort of arrangement is not uncommon for the larger alkali metals, which can accommodate higher coordination numbers, but is not preferred by hydrogen.

Co-author Matthew Davidson, head of the Department of Chemistry and director of the Centre for Sustainable Chemical Technologies (CSCT) at the University of Bath, says their interest lies in gaining a better understanding of how ligands like the amine tris(phenolate) can be used to control reactive metal centres for catalysis. A thorough comprehension of the coordination chemistry and ability to draw conceptual similarities between the reactivity of hydrogen and metals as Lewis acids could help advance areas such as organocatalysis.  

 

Facts, background information, dossiers
More about Universidad de Oviedo
  • News

    Making hydrogen a metal mimic

    Scientists have tricked hydrogen into structurally behaving like a metal for the first time, and proven elemental equivalence. With a single ‘s’ electron, hydrogen is chemically analogous to the group 1 alkali metals in the periodic table, but it typically exhibits pronounced structural dif ... more

    Electrochemical sensor for coeliac disease promises easy diagnosis of gluten allergy

    Researchers have developed the first example of an electrochemical immunosensor for the diagnosis of coeliac disease – a genetically determined specific immune response to the antigens present in gluten. Electrochemical immunosensors (EIs) are interesting alternatives to conventional immun ... more

More about University of Bath
  • News

    EU project helps boost 'organic' electronics

    Light-up clothing, medical sensors and electronic wallpaper are just a few of the possible future applications that may be enabled by flexible and printable electronics using carbon-based materials. EXTMOS (EXTended Model of Organic Semiconductors), a €5 million pan-European collaborative r ... more

    Bath semiconductor research boosted by new nano-scale patterning equipment

    The University of Bath is the only university in the UK to have installed a unique Nano-Lithography printing system, enabling Bath to lead the way in the development of advanced manufacturing techniques for nano-engineered semiconductors. Based in the University's Department of Electronic & ... more

    New laser achieves wavelength long sought by laser developers

    Researchers at the University of Bath, United Kingdom have created a new kind of laser capable of pulsed and continuous mid-infrared (IR) emission between 3.1 and 3.2 microns, a spectral range that has long presented a major challenge for laser developers. The achievement could aid in the d ... more

  • Videos

    EU Project helps boost “Organic” electronics

    Light-up clothing, medical sensors and electronic wallpaper are just a few of the possible future applications that may be enabled by flexible and printable electronics using carbon-based materials. EXTMOS (EXTended Model of Organic Semiconductors), a €5 million pan-European collaborative r ... more

More about Royal Society of Chemistry
  • News

    New coating is self-defence for seeds

    Scientists in Switzerland have developed a protective coating for seeds that poisons pests with cyanide when they bite into it. The coating is a system of two layers and only becomes toxic when the layers are mixed, eliminating the problem of environmental contamination that is associated w ... more

    Using bacteria to make electrodes

    Scientists in France have produced hematite using a bacterial pathway for use as an electrode material in Li-ion technologies. Currently, most commercial electrode materials for Li-ion technologies are prepared using the ceramic method, which requires long heating periods at high temperatur ... more

    Marine plant replacement for platinum in solar cells

    An international research team has shown that that the power conversion efficiency of sea tangle extract is comparable to platinum in solar cell electrodes. Dye-sensitized solar cells (DSCs) are quickly becoming a widespread and affordable alternative to photovoltaic solar cells. The electr ... more

  • Videos

    Royal Society of Chemistry – About us

    With more than 51,000 members and an international publishing and knowledge business we are the UK’s professional body for chemical scientists, supporting and representing our members and bringing together chemical scientists from all over the world. more

    A career in toxicology

    Hear from RSC member Vicki Stone talk about her role as a Nanotoxicologist. more

    When Food met Pharma: Delivery Strategies for Nutraceuticals

    With growing prevalence of lifestyle-associated diseases, including obesity, Type II diabetes and cardiovascular disease, there is an urgent need and demand to try to prevent the onset of these diseases within our growing population. Nutraceuticals, along with appropriate diet and exercise, ... more

  • Events
    Conference
    11-09 – 13-09
    2017
    Cambridge, GB

    Ionic liquids: from fundamental properties to practical applications - Faraday Discussion

    Over the last three years, there has been an increase in the range of ionic liquids (ILs) utilised and significant advances in our understanding of the fundamental aspects of these materials. Therefore, the time is apt for Faraday Discussions to provide a foundation for future fundamental c ... more

    Conference
    30-08 – 01-09
    2017
    Glasgow, GB

    Surface Enhanced Raman Scattering - SERS: Faraday Discussions

    This meeting aims to set the agenda for the surface-enhanced Raman scattering (SERS) field for the next 10 years, by bringing the community together to welcome in new emerging priority areas and embracing the diversity of approaches and disciplines which are contributing to the growth and u ... more

    Conference
    24-07 – 26-07
    2017
    Sheffield, GB

    Complex Molecular Surfaces and Interfaces: Faraday Discussion

    The unique behavior of compounds confined at interfaces can be very different from those in bulk situations. Advances in methods and their understanding for determination of the structure and chemical bonding at surfaces is central to continued progress in the field. Among the questions tha ... more

  • Companies

    Royal Society of Chemistry (RSC)

    The RSC is a leading international publisher of highly regarded journals and books in the chemical sciences. The RSC is also the professional body for chemists with a global membership of over 46,000. more

Your browser is not current. Microsoft Internet Explorer 6.0 does not support some functions on Chemie.DE