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Chemistry World June 24, 2015 Victoria Richards |
Confronting the crystalline sponge A research group in the US has successfully simplified a crystallographic technique that scientists had struggled to get to grips with. |
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 May 20, 2014 Andy Extance |
Mechanism study seeks to clear 'crystalline flask' cloud The Japanese chemists behind a controversial x-ray crystallography method have used it to study a poorly-understood reaction mechanism for the first time. |
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 March 23, 2009 Hayley Birch |
Speeding up screening for chiral catalysts U.S. researchers say their method represents a 'standard workhorse' for discovery and optimisation of chiral catalysts, such as those widely used by the pharmaceutical and pesticide industries. |
Chemistry World September 30, 2009 Simon Haddlington |
Porous networks trap reactive intermediates Chemists in Japan have shown how it is possible to take sequential x-ray snapshots of chemical reactions taking place within molecular-sized 'reaction chambers', capturing the crystal structures of short-lived reactive intermediates. |
Chemistry World June 18, 2014 Michael Parkin |
Separation by levitation A team in the US has shown that enantiopure and racemic crystals can be separated by magnetic levitation. |
Chemistry World September 20, 2007 Lewis Brindley |
New Catalyst Rings the Changes Organic chemists in the US have developed a method to control the stereochemistry of a useful intramolecular Diels-Alder reaction. |
Chemistry World June 5, 2012 Simon Perks |
Chiral separation with micro-flows How do you separate enantiomers without any kind of chiral recognition between molecules? The answer it seems is to use asymmetric flow in a micro-fluidic channel. |
Chemistry World August 17, 2010 Simon Hadlington |
A MOF you can scoff Chemists have accidentally discovered a new type of metal organic framework, or MOF, which is made from edible components. |
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 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 February 21, 2007 Tom Westgate |
Complex Organic Molecules Teamed with Iodine Chemists have developed a method for constructing complex halogen-containing organic molecules from simple compounds in a single step. The discovery could pave the way for the synthesis of many potentially useful naturally occurring molecules. |
Chemistry World March 2, 2015 Victoria Richards |
Spicing up MOFs Curcumin is top of the ingredients list for a highly porous metal -- organic framework being developed by scientists in China that demonstrates a unique co-release drug delivery system. |
Chemistry World April 29, 2009 James Urquhart |
Huge pores in zeolite molecular sieve Researchers in Spain and Sweden have synthesized and structurally determined a new kind of crystalline molecular sieve with extra large holes and chiral properties. |
Chemistry World August 13, 2009 Lewis Brindley |
Picky MOF crystals show promise For the first time, researchers have modified metal-organic frameworks to selectively capture large organic molecules. |
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 June 9, 2009 Simon Hadlington |
Super sponges soak up gas Researchers in the US have shown that a recently discovered class of compound based on light elements can store gas at least as efficiently as the most promising metal organic framework candidates. |
Chemistry World August 31, 2015 Matthew Gunther |
MOFs with a heart of glass Metal -- organic frameworks have long been the preserve of the solid state domain, but a group of scientists have now produced a molten MOF and cooled it to form a unique glass. |
Chemistry World January 27, 2014 Michael Parkin |
One minute synthesis for microporous materials Researchers in Japan have developed the fastest known synthetic route for preparing crystalline microporous solids. |
Chemistry World October 14, 2009 James Urquhart |
New route to amino acids US scientists have found a new way of making a class of non-natural amino acids that are widely used as components of pharmaceuticals and chiral catalysts. |
Chemistry World November 14, 2014 Laura Fisher |
Will it crystallize? Scientists have developed a machine learning approach to predict whether a small organic molecule will be able to crystallize. |
Chemistry World March 28, 2007 Victoria Gill |
New Limits Set on Chirality Researchers have set a new standard in stereochemistry. Measuring Raman optical activity, they have confirmed the spatial arrangement of a molecule with almost impossibly subtle chirality: (R)-[ 2H 1, 2H 2, 2H 3]-neopentane. |
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 July 26, 2007 Tom Westgate |
Counterion Does the Twist US chemists have achieved a breakthrough in the design of catalysts that selectively produce chiral compounds. |
Chemistry World September 13, 2006 Simon Hadlington |
Red Oxygen Structure Revealed An international team of researchers has cracked a conundrum that has baffled scientists for years: they have elucidated the crystalline structure of an enigmatic phase of solid oxygen that arises when the molecule is subjected to high pressure. |
Chemistry World May 15, 2012 Harriet Brewerton |
Chiral Confusion Scientists in Israel have shown that non-biological chiral crystals are much more abundant than previously thought and their findings could clear up a possible confusion over the term 'chiral'. |
Chemistry World February 24, 2014 Derek Lowe |
Tools of the trade Organic synthesis has always depended on instrumental analysis, even when the instruments were a thermometer for distillations and a melting point stage for crystals. |
Chemistry World May 4, 2010 Lewis Brindley |
Nanomachinery gets a spring in its step Molecular springs that always twist the same way are the latest addition to the nanomachinery toolbox. |
Chemistry World September 6, 2006 Michael Gross |
Selective Shortcut Chemists have developed a simple catalyst that speeds up the synthesis of a chiral protected building block used in many complex syntheses. |
Chemistry World November 6, 2009 Phillip Broadwith |
Enzyme binds both sides of the mirror European chemists have discovered that both mirror-image forms of a particular compound can bind at the same time in the same site of an enzyme, a phenomenon that has never been seen before. |
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 November 3, 2011 Erica Wise |
A Model for the Single Chirality of Life The boiling solutions in prebiotic hot springs could shed light on the emergence of a single chiral form of biomolecules in nature, say Spanish scientists. |
Chemistry World April 30, 2015 Simon Hadlington |
Floppy polymer defies convention to form rigid framework Chemists in the US have turned received wisdom on its head by using floppy, linear polymers to construct a rigid, crystalline, three-dimensional metal -- organic framework. |
Chemistry World June 2010 |
Column: The crucible Philip Ball welcomes the age of automated chemical crystallography |
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 May 3, 2013 Alison Rodger |
VCD spectroscopy for organic chemists I highly recommend VCD Spectroscopy, by Philip Stephens and others, for organic chemists as the textbook of choice on this useful topic. |
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 March 5, 2014 Andy Extance |
Rotaxanes make symmetry history A UK team has stumbled upon an efficient way to separately produce each member of an unusual mirror image pair of chemical systems that has eluded scientists for over four decades. |
Chemistry World July 16, 2013 Harriet Brewerton |
Accelerating stereochemical analysis A chemosensor has been developed by scientists in the US to speed up the quantitative stereochemical analysis of chiral amino alcohols and diamines. |
Chemistry World July 6, 2015 Tim Wogan |
Novel compounds make light work of trapping carbon dioxide A new set of compounds that can be reversibly switched between crystalline and amorphous isomers by light has been developed by researchers in Italy. |
Chemistry World June 13, 2008 Richard Van Noorden |
Asymmetric ketone catalysis gets pharma-scale makeover An asymmetric catalysis reaction limited to laboratory syntheses has received a makeover that could see it used on a large scale by drug-makers. |
Chemistry World September 7, 2009 |
Bolt-on MOF catalysts Chemists in the US have shown that a class of hugely porous materials called metal-organic frameworks (MOFs) can have catalytic functions bolted onto the structure after it has been constructed to produce efficient catalysts that can be easily recovered and cycled many times. |
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 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 2008 Derek Lowe |
Column: In the pipeline The author seeks a cure for 'compound bloat' |
IEEE Spectrum July 2007 Saswato R. Das |
Power Tool for Making Nanoscale Objects A physics team uses a special electron microscope to carve tiny gold, silver, and aluminum structures a few nanometers across. |
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. |
Chemistry World April 19, 2009 Hayley Birch |
Chiral metals shape up for catalysis Dutch and Israeli scientists have found a way to induce the chirality usually only found in organic materials in palladium. |
Chemistry World July 15, 2014 Richard Cooper |
Phasing in crystallography: a modern perspective Phasing in crystallography has its origins in Carmelo Giacovazzo's monograph Direct phasing in crystallography, but with a broader coverage of the range of modern phasing methods. |