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Chemistry World June 23, 2009 James Urquhart |
Smallest acid droplet formed Scientists in Germany have observed a single molecule of HCl dissociating into its component ions in water - and have discovered that just four water molecules are needed for complete dissociation of the acid. |
Chemistry World October 3, 2013 Laura Howes |
Twisting molecules for faster reactions Physical chemists in Germany and Switzerland have combined two different techniques to investigate the reactivities of different conformers -- and found one reaction that went 50% faster for one conformer over the other. |
Chemistry World January 22, 2007 Richard Van Noorden |
First Synchrotron for Neutral Molecules Scientists have built and demonstrated the first synchrotron to work on neutral molecules. It could be used to study collisions of cold, slow-moving molecules, allowing chemists to probe their behavior with a resolution impossible to achieve at higher temperatures. |
Chemistry World June 13, 2012 Simon Hadlington |
Exploding molecule provides 3D bond images Researchers from the US and Germany have demonstrated a new way to obtain accurate three-dimensional images of molecules, with precise measurements of the geometry of the molecule's chemical bonds. |
Chemistry World May 24, 2013 David Bradley |
Microwaves show their hand The chirality of a gas phase molecule held in an electric field can be revealed using microwave spectroscopy. Hooking the technique to a separation step might even be exploited to isolate a specific enantiomer from a racemic mixture of both forms. |
Chemistry World September 24, 2014 Hayley Simon |
Water provides new angle on single molecule imaging Small variations in a molecule's conformation can have a large effect on chemical reactivity. Being able to identify these differences is one of the aims of high resolution spectroscopy. |
Chemistry World January 20, 2011 Jon Cartwright |
Chemists separate water isomers Chemists in Israel claim to have separated water into its two spin isomers and suggest the outcome could deliver highly sensitive nuclear magnetic resonance experiments. |
Chemistry World September 12, 2010 Simon Hadlington |
Isotope effect seen on single molecule The isotope effect - where the rate of a reaction is altered depending on the presence of a given isotopic atom in the reactant - is a key tool for elucidating reaction mechanisms |
Chemistry World August 13, 2010 James Urquhart |
Zooming in on intermolecular bonds German researchers have captured clear images of intermolecular bonds for the first time using a modified form of scanning tunnelling microscopy. |
Chemistry World April 12, 2013 Melissae Fellet |
Elusive atmospheric intermediates reveal some secrets Scientists have found further evidence for the existence of an elusive intermediate implicated in chemical reactions that degrade atmospheric pollutants. |
Chemistry World May 12, 2011 Jon Cartwright |
'Chemical soldering' heralds single molecule electronics Scientists in Japan and Switzerland have demonstrated how to wire up single molecules with conductive nanowires. |
Chemistry World November 13, 2008 Hayley Birch |
Reactions Studied by Stop Motion Japanese and Israeli scientists have developed a technique that can track whole-molecule changes that occur during extremely rapid reactions. |
Chemistry World September 28, 2010 Lewis Brindley |
Helium nanodroplets host ion analysis Chemists have developed a sensitive new infrared spectroscopy method that analyses molecular ions by capturing them in nanosized bubbles of freezing helium. |
Chemistry World December 23, 2009 Phillip Broadwith |
Opening the gate for molecular electronics Chemists in Korea and the US have shown that the current running through a transistor made of a single molecule can be regulated by tweaking its molecular orbital energies. |
Chemistry World March 21, 2007 Richard Van Noorden |
Forcing a Reaction US chemists have forced molecules to react by ripping their bonds apart with ultrasound. The scientists carefully stretched one targeted bond until it snapped, guiding the molecule's subsequent reaction into pathways forbidden by conventional chemistry. |
Chemistry World November 24, 2011 Phillip Broadwith |
Rewriting the rules for polar molecules A molecule containing two atoms of the same element can have a permanent electric dipole, say US and German scientists, contradicting the traditional view of molecular polarity. |
Chemistry World August 1, 2010 Mike Brown |
Snapshots of mystery molecular structures Researchers have used atomic force microscopy to produce clear molecular images that can help determine the correct atomic structure of unknown organic molecules. |
Chemistry World February 28, 2010 Jon Cartwright |
Reactions on DNA origami watched with AFM Chemists in Denmark have for the first time imaged chemical reactions on a DNA origami scaffold so that they can precisely attach single molecules, involving atomic force microscopy. |
Chemistry World October 12, 2006 Richard Van Noorden |
Lasers on the Energy Ski Slope Researchers have shown that intense laser-light pulses can act as catalysts, controlling the end products of a chemical reaction without themselves being absorbed. |
Chemistry World September 6, 2013 Melissae Fellet |
Unravelling stereochemistry via mass spectrometry Researchers have used mass spectrometry to determine the stereochemistry of a prototypical chiral molecule, CHBrClF. |
Chemistry World November 11, 2009 James Urquhart |
Structural snapshots of complex molecules US researchers have pioneered a new spectroscopy technique to uncover the precise sequence of atomic movements and structural changes that occur during complex chemical transformations. |
Chemistry World January 21, 2014 Rachel Wood |
Centrifuge spectroscopy probes extreme rotational states A new spectroscopic technique for studying electronically excited molecules at very high angular momentum has been developed and tested by scientists in Canada. |
Chemistry World November 23, 2006 Simon Hadlington |
Unfolding Peptide Watched in Real Time Researchers have observed a peptide molecule changing shape in real time. The ultrafast process was monitored using a technique called transient two-dimensional infrared spectroscopy. |
Chemistry World January 25, 2007 Richard Van Noorden |
Water Surprise for Atmospheric Scientists Lone water molecules can catalyze reactions between atmospheric gases, scientists have confirmed, throwing a wrench in the works of supposedly simple atmospheric chemistry. |
Chemistry World October 13, 2011 Phillip Broadwith |
Following Electrons' Chemical Reaction Quickstep The oscillating electronic states of molecules nearby and passing through a conical intersection can now be probed directly. |
Technology Research News October 20, 2004 |
Molecules positioned on silicon Dubbed multi-step feedback control lithography, this new fabrication process could eventually be used to construct prototype molecular electronic devices for future technologies in areas like consumer electronics and biomedical diagnostics. |
Chemistry World February 28, 2012 Nina Notman |
Observing Charge Distribution in Molecules The distribution of charge across a single molecule has been imaged for the first time by Swiss scientists. It is hoped that this work may eventually lead to electronic devices consisting of organic molecules. |
Chemistry World May 18, 2011 James Urquhart |
Throwing light on molecular logic gates The multifunctional molecule, which can be reconfigured by light, could be used in data storage devices and biomedicine, including nanoparticle tracking and drug delivery. |
Chemistry World December 14, 2011 Kate McAlpine |
Artificial intelligence for quantum chemistry Quantum chemical approximations don't always need to start from scratch, says an international team of researchers. Algorithms can now be used to predict the atomisation energy of huge numbers of molecules |
Chemistry World July 29, 2010 Carol Stanier |
Methane all lined up Swiss researchers have found that the way methane molecules vibrate when they hit a nickel surface can have a huge effect on their reactivity. |
Chemistry World March 9, 2006 Katharine Sanderson |
Covalent Bonds Crack Under the Strain Chemists must consider engineering principles when designing molecules following news that tough carbon-to-carbon bonds break easily under mechanical strain. |
Technology Research News December 3, 2003 |
Molecule does two-step Duke University researchers have found a way to make a molecule react only when it has been hit by two photons of ultraviolet light, making the molecule a controllable switch. The molecule could eventually be used in optical storage devices and in biochips. |
Technology Research News June 29, 2005 |
Self-assembly: the natural way to make things In biology, there are a few different ways DNA molecules can be replicated and combined. |
Chemistry World November 5, 2007 Ned Stafford |
Joining up Nanocircuits A team of scientists have covalently bonded strings of porphyrin molecules on a gold surface -- a step forward in the quest to develop nano-electronics. |
Chemistry World July 28, 2010 Andy Extance |
Molecular interference reveals reactions Scientists can now see atoms reacting on the femtosecond timescale in unprecedented detail, thanks to a laser technique developed at the University of Ottawa. |
Technology Research News June 30, 2004 |
Method tests molecular devices Components made from molecules are likely to be smaller than those that can be made using today's chip fabrication methods, and they can potentially self-assemble, which would make for inexpensive manufacturing processes. |
Chemistry World August 30, 2007 Simon Hadlington |
Rigid Framework for Molecular Switches Researchers in Europe have found that a molecule can be flipped between two conductance states without changing its shape. |
Scientific American April 18, 2005 Kauffmann & van den Bosch |
CT Scan for Molecules Producing 3-d images of electron orbitals. |
Chemistry World June 5, 2013 Simon Hadlington |
Raman scattering reaches sub-nm resolution Researchers have achieved the highest resolution yet with Raman spectroscopy, allowing the chemical mapping of molecules to a resolution of less than 1nm. The technique could allow unprecedented chemical identification of single molecules. |
Technology Research News September 22, 2004 |
Photo Molecules Flip Current Researchers have constructed a photodiode that consists of a mix of slightly different peptide molecules anchored to a gold surface. |
CIO December 1, 2002 Sarah D. Scalet |
When Every Molecule Counts A group of electrical engineers at Purdue University hope that their research could lead to ultrasensitive sensors capable of detecting a single molecule of a biological agent or chemical pollutant. |
Chemistry World August 27, 2009 Nina Notman |
Molecules in close-up A tuning-fork-like device than measures atomic forces is able to image every single atom in a molecule, according to its Swiss inventors. |
Chemistry World August 23, 2006 Simon Hadlington |
Laser Light Cast on Quantum Evolution Researchers have demonstrated for the first time why a technique called coherent control is able to break molecular bonds selectively using finely-tuned pulses of laser light. |
Chemistry World March 31, 2009 Lewis Brindley |
Giving molecules a stretch A simple way to stretch small molecules and measure the forces at play has been developed by researchers in the US. |
Chemistry World October 15, 2009 Simon Hadlington |
Optical conveyor belt gathers up molecules Researchers in Germany have developed a novel way to 'round up' biological molecules that are freely suspended in solution and trap them in a confined space using nothing more than light. |
Chemistry World August 8, 2006 |
Single Molecule Makes Electronic Switch A single molecule, trapped between two electrodes, acts as a switch and has a `memory' of the type used in data storage, researchers have found. |
Chemistry World July 31, 2008 |
Nanostructures Made Easy Scotland-based chemists have invented a new way to build nanoscale arrays of molecules over a large surface area: a technique that may be key to making nanostructures in sophisticated sensors, catalysts, and tiny computer parts. |
Chemistry World December 15, 2015 Philippa Matthews |
Getting the measure of transition states For the first time researchers have access to previously unmeasurable rotation constants and frequencies of the transition state. |
Chemistry World March 31, 2009 Jon Cartwright |
Blood clotting light work for new molecule The molecule, which works with the help of an enzyme, could one day be used in medicine to shut off blood supply to localized areas of the human body such as tumors. |
Chemistry World January 19, 2010 Simon Hadlington |
New 'click' reaction to modify proteins Chemists in the US have discovered a new way to attach small molecules to proteins and peptides under mild, aqueous reaction conditions. |