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Chemistry World May 2, 2013 Jennifer Newton |
Updating the textbook on intermolecular interactions A researcher in Spain has analyzed over five million intermolecular distances to propose a consistent set of van der Waals radii for the most naturally occurring elements. |
Chemistry World February 18, 2011 Carol Stanier |
Speed dating for pharmaceuticals A simple analysis of hydrogen bond strengths finds the best crystallisation partners for drugs, say UK scientists. |
Chemistry World October 3, 2014 Jennifer Newton |
Assessing covalency in the hydrogen bond zoo Worried that the concept of hydrogen bonding has been getting fuzzier over time, scientists in Germany have sought a fresh look at the very nature of these bonds, and how much covalency they involve. |
Chemistry World December 10, 2014 Jason Woolford |
I meets I for a hole lot of bonding Researchers in India have provided experimental verification that a co-operative I -hole and I -hole are responsible for holding the molecules of an isothiocyanate based peptide together in its crystal lattice. |
Chemistry World October 6, 2015 Colin Groom |
A story of structure For chemists, the Cambridge Structural Database is part of the furniture. It contains data for every small molecule crystal structure ever determined -- over 750,000 of them |
Chemistry World October 20, 2013 David Bradley |
Will the sky fall as Dr says no to strong 'bond' Just how strong are non-covalent interactions that control supramolecular complexes and protein structure? Perhaps not as strong as chemists previously thought, according to UK chemists. |
Chemistry World May 29, 2015 Andy Extance |
Noble gas joins I -hole interaction crowd Despite noble gases' characteristic unreactivity, Spanish chemists have calculated that molecules containing xenon can interact non-covalently through what they've called 'aerogen bonding'. |
Chemistry World April 26, 2011 Manisha Lalloo |
Pnicogens link up as new bond is discovered German researchers have discovered a chemical oddity - a new type of intramolecular interaction between group 15 atoms, which is as strong as a hydrogen bond. These interactions could be used to build supramolecular structures. |
Chemistry World March 27, 2013 Akshat Rathi |
Molecular cages to end crystallization nightmare X-ray crystallography has shaped modern chemistry. It is a powerful tool for molecular structural analysis. But it suffers from one big drawback: it can only analyze materials that form well-defined crystals. This may now be about to change. |
Chemistry World October 11, 2013 Andy Extance |
'Tetrel bonding' emerges from I -hole Researchers have coined the term 'tetrel bonding' to highlight little-studied but powerful non-covalent bonding between electron donors and the group 14 elements, silicon, germanium and tin. |
Chemistry World August 15, 2013 Caryl Richards |
First agostic isomers uncovered from two-tone crystals The discovery that two different colored crystals can form from the same molybdenum cation has signalled the first experimental evidence for agostic isomers -- or agostomers -- in organometallic complexes. |
Chemistry World November 18, 2012 Simon Hadlington |
C-O bond stretched to record length Chemists in the US have stretched the C-O bond to a record length, an 'extraordinary' 1.622 angstroms, compared with a typical length of around 1.43 angstroms in ethers. |
Chemistry World February 3, 2011 Ben Merison |
The mystery of the disappearing crystals UK chemists have analysed a fifty year old sample to find out why and say that it's down to impurities. This takes researchers a step closer to understanding why certain pharmaceutical drugs lose their therapeutic effect. |
Reactive Reports Issue 72 David Bradley |
Ice Age the Movie The ordered structure of ice dissolves little by little into disorder when a tiny burst of light hits an ice crystal. |
Chemistry World July 24, 2009 Nina Notman |
Chiral isotropic liquids from achiral molecules Boomerang-shaped liquid crystal phase molecules that don't exhibit 'handedness' (chirality) have been found to form unusual chiral structures that spontaneously separate into left- and right-handed domains. |
Chemistry World December 9, 2013 Jessica Cocker |
Hydrogen breaks strong bonds with brute force A method developed by Leo Lau of Western University in Canada and colleagues can break C -- H bonds without damaging the rest of the molecule. |
Chemistry World June 5, 2006 Simon Hadlington |
The Attraction of Gold for Gold Researchers are unravelling some of the fundamental chemistry surrounding a key but poorly understood aspect of the coordination chemistry of gold -- the weak `aurophilic' interactions between adjacent atoms of Au(I) in organic complexes. |
Chemistry World November 3, 2010 Andy Extance |
Hydrogen bond set to be redefined The world authority on chemical nomenclature is preparing to scrap the familiar hydrogen bond definition, in light of recent evidence about its true nature. |
Chemistry World September 1, 2009 Tom Bond |
Complex shines a light on its own creation A complex that spontaneously forms at a surface and then signals its own assembly has been created by scientists from the Netherlands. |
Chemistry World June 25, 2013 Phillip Broadwith |
Porous materials break out of covalent cage Porous materials made from small molecular cages, rather than rigidly bonded frameworks, could be easier to process and have more tunable performance, say UK researchers. |
Chemistry World January 29, 2015 Santiago Alvarez |
What we mean when we talk about bonds The chemical bond is still a matter of lively debate among chemists, even a century after Gilbert Lewis introduced his electron pair bonding concept. |
Chemistry World July 8, 2011 Mike Brown |
Pi-stacking better without the aromatics? Scientists in the US have discovered that electrons confined to their double bonds can sometimes deliver stronger pi-stacking interactions than those roaming free in aromatic systems. |
Chemistry World May 28, 2008 Lewis Brindley |
Changing the face of a water splitting catalyst Australian chemists have grown crystals of the water-splitting catalyst titanium dioxide that are many times more reactive than usual. |
Chemistry World July 11, 2014 Jennifer Newton |
Crystal-to-crystal transformation Scientists in Canada have generated a new crystalline material that undergoes irreversible light-induced bending. |
Chemistry World November 30, 2007 Lewis Brindley |
Crystal Clear Structure Prediction One team of researchers has hit the jackpot by correctly predicting the crystal structures of four organic molecules in a competition organized by the University of Cambridge. |
Chemistry World February 9, 2015 Hugh Cowley |
Unexpected success with luminescent liquid crystals A simple and effective procedure to incorporate strongly-emitting inorganic clusters into nematic liquid crystals has been reported by a team from France. |
Chemistry World September 18, 2012 Phillip Broadwith |
Caffeine crystals with an elastic bent Indian chemists have discovered a highly elastic but crystalline material made from caffeine. The crystals maintain their elasticity down to -100 C. |
Chemistry World August 25, 2011 Fiona McKenzie |
Poking Aspirin with a Sharp Stick Scientists have found a way to go one better than x-ray crystallography to examine pharmaceutical crystals at an even deeper level. |
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. |
Technology Research News April 9, 2003 |
Liquid crystals go 3D Researchers from Sheffield University in England and the University of Pennsylvania have unlocked some of the secrets of liquid crystals, materials that self-assemble into lattices of geometric shapes that are neither solid nor liquid, but somewhere between. |
Chemistry World February 7, 2008 Simon Hadlington |
Crystal Shows Colossal Expansion A super-stretchy crystal could help to develop improved coatings for satellites facing the extreme temperature variations of space, according to UK scientists. |
Chemistry World December 10, 2014 Emma Stoye |
Cutting edge chemistry in 2014 Highlights from last year's ground breaking chemical sciences research. |
Chemistry World January 30, 2008 Jonathan Edwards |
DNA Helps Nanoparticles Crystallize Two papers in Nature have each shown a simple way to build designer crystals from nanoparticles, using DNA as 'glue'. Both methods show promise as a cheap way of mass-producing complex materials like photonic crystals. |
Chemistry World July 27, 2014 Simon Hadlington |
Propeller-shaped molecules give 2D polymers lift-off Crystal engineers have finally succeeded in achieving a goal that has eluded chemists for decades by unambiguously synthesizing two-dimensional polymer crystals, confirmed by single-crystal x-ray diffraction. |
Chemistry World October 28, 2013 Jennifer Newton |
Crystal within a crystal Colleagues at the University of Strasbourg used a molecular tectonics strategy to prepare the crystals. |
Chemistry World September 11, 2009 Tom Bond |
Just heat and heal A polymer system based on weak, reversible bonds that can heal itself when heated has been created by UK and US chemists. The new polymers could be further developed and used in the aerospace and other industries, say the researchers. |
Chemistry World November 28, 2012 Philip Ball |
Make or break: the laws of motion The machine metaphors of nanochemistry and molecular biology now make it plain that dynamic function arises from the use of weak, temporary interactions. The question biology has to face is: what is the optimal bond strength for a given mechanical function? |
Chemistry World December 20, 2013 Emma Stoye |
Year-long celebration to raise crystallography's profile The International Union of Crystallographers has announced details of the activities planned to mark the International Year of Crystallography in 2014. |
Chemistry World March 2011 |
Column: The crucible Chemistry cannot all be reduced to physics, argues Philip Ball |
Chemistry World October 27, 2014 Tim Wogan |
Folding rules used to build unnatural proteins Scientists in the UK and US have designed and synthesized unnatural protein structures, using theoretical calculations to explore the factors affecting protein folding and stability. |
Chemistry World December 16, 2013 Tim Wogan |
Calculations predict stable eight nitrogen molecule Nitrogen could form an N 8 molecular crystal at low temperatures, according to density functional theory calculations done by Israeli and US researchers. |
Chemistry World November 14, 2010 Laura Howes |
Using Host-Guest Chemistry as Molecular Velcro Molecular recognition, a microscopic process, has been used by Japanese researchers to assemble gels into macroscopic structures. The result is like molecular velcro, the molecules catch each other and hold the gel cubes together. |
Chemistry World August 9, 2013 Daniel Johnson |
Mystery of jumping crystals solved The riddle of why a certain type of crystal leaps more than 10,000 times its length when exposed to light may have been solved. The crystals' rapid movement is a result of stresses generated in the crystal when light induces a structural change within it. |
Reactive Reports Issue 33 David Bradley |
Two-faced Liquid Crystals A new class of programmable liquid crystals could be used to make variable optical filters for laboratory instrumentation and digital cameras; they might even be used to treat dyslexia. |
Chemistry World October 1, 2013 Philip Ball |
Crystallography 101 What is perhaps most striking about x-ray crystallography is that in 100 years of existence its significance has only increased. |
Technology Research News October 6, 2004 |
Crystal structure tunes nanowires A new process that controls the crystal structure of nanowires made from specific semiconductors may enable electronic components, such as light-emitting diodes and laser diodes, with tunable properties. |
Chemistry World November 4, 2010 Mike Brown |
World's smallest chromatography column Single metal-organic framework crystals can be used to separate mixtures of dyes just like a miniature chromatography column, say scientists in the US. |
Chemistry World June 2010 |
Column: The crucible Philip Ball welcomes the age of automated chemical crystallography |
Chemistry World May 15, 2006 Jon Evans |
Selective DNA Crystals A molecular biologist has developed a molecular sieve using a DNA crystal with nanoscale channels. |
Technology Research News April 7, 2004 Eric Smalley |
Angle speeds plastic transistor Going with the flow is a good way to pick up speed, particularly for plastic transistors. Rotating the crystal 180 degrees can change the transistor's performance by as much as 3.5 times. |