Chemistry World
@ChemistryWorld
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Chemistry magazine bringing you the latest chemistry news and research every day. Published by the Royal Society of Chemistry.
Cambridge
Joined March 2009
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From titanium dioxide to sustainable fabrics, ionic liquids to biomass, our March editions have covered a lot of ground Here is a look back at some of our highlights of the past 20 years with our comment and careers editor
@Emma_Pewsey
!
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We’re all familiar with a 2D periodic table, but could a 3D version tell us more about the relationship between elements?
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‘If he wasn’t there, I would have to ask someone to do those things for me, which would take away my independence’ – Joey Ramp explains how
@sampson_dog
helped her get back into the lab after she suffered a brain injury and extensive nerve damage
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‘She was told people with service animals can’t work in labs’ – Researcher Joey Ramp and service dog Sampson are fighting to make lab work more accessible to disabled scientists
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Frances Arnold is the fifth woman to win the chemistry
#NobelPrize
– she spoke to us a few months ago about her love of walking, travel, and learning from nature
#ChemNobel
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2019 marks the International Year of the Periodic Table,
#IYPT2019
! We'll be celebrating by periodically publishing periodic table posts.
First, Mike Sutton looks back at the man who organised the elements into the table we know today.
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150 years ago today, Dmitri Mendeleev first presented his periodic table to the Russian Chemical Society. We look back on
#Mendeleev
’s life and how he came to make his famous discovery
#IYPT2019
#OTD
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The end is nigh for the kilogram as we know it
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You've probably heard of C–H⋯O bonds...but have you heard of June Sutor? She did some pioneering work on these crucial interactions, but has been almost forgotten.
Until now.
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And the 2019
#chemnobel
#Nobelprize
goes to...
John B. Goodenough, M. Stanley Whittingham and Akira Yoshino “for the development of lithium-ion batteries.”
Follow our live blog:
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A Spanish university has decorated its chemistry department building with a giant periodic table
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Any advice for Ginny, who found these ~100 year old vials that belonged to her chemistry teacher grandfather? There's chloroform, aniline, acetonitrile, nitrobenzene, chlorobenzene & more...
(
@SellaTheChemist
- this may be up your street!)
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Researchers have created the first stable compound featuring a planar – rather than tetrahedral – tetracoordinated silicon atom
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It's been a long wait for the result of the US election but it's finally in.
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The 'average' chemistry Nobel laureate is a US man, called Richard, John or Paul. He is 57 years old and at an institution in California. His prize-winning work was published 16 yrs ago in Nature or JACS, and has been cited 529 times to date.
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Researchers in Germany have obtained the highest ever resolution measurements of kinesin movement by getting the motor protein to carry a germanium nanosphere
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In other shocks to the chemical system, November also saw some unexpected predictions about carbon and how it may be able to form a quadruple bond with an iron centre
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The stirrer bar can record a reaction’s temperature, conductivity, colour, stirring rate, and viscosity in real time
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Today marks the 187th birthday of Dmitri Mendeleev! 🥳🎂 You can find out more about the life and works of the father of the periodic table in this feature from Mike Sutton:
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Researchers have demonstrated how iron(III) phthalocyanine chloride can be used as a ‘molecular drone’ to remove single atoms from a surface
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The United Nations has designated 2019 as the international year of the periodic table of chemical elements
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There are hundreds of websites designed to support chemists at every level, with everything from interpreting a complicated NMR spectrum to searching for safety information, editing a paper, and much more.
In this thread, we share some of the available resources!
[1/11]
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If you’re interested in learning a new skill over the holidays – or perhaps brushing up on one you already have – make sure you check out Andryj Borys’ Schlenk line guide
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The helium hydride ion - after years of searching space, scientists have finally found it in the planetary nebula NGC 7027
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The researchers were able to trace excited-state orbitals with femtosecond resolution by depositing organic dye molecules onto an oxidised copper surface and using powerful laser pulses to excite electrons in the dye
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This may be the world’s largest (permanent) periodic table ever
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Synapses – they've got some cool chemistry going on
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‘He realised that using it well required very specific skills that, like dark magic and traditional family recipes, seemed extremely secret’ –
@AndryjBorys
is hoping to spare future chemists the trials and tribulations of Schlenk lines
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Silicon has four valence orbitals available for bonding, but usually fails to form quadruple bonds with transition metals as a result of unfavourable orbital configurations
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Researchers have demonstrated it is possible to break specific bonds in a complex molecule by shooting it against a solid surface
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The largest Hückel aromatic molecule made purely from metal atoms now exists – thanks to a 12-membered bismuth ring...
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‘A diagram of the silicon-based molecule gives the impression of a benzene ring that has been in a traffic accident’ – Brian Clegg investigates the curious chemistry of hexasilabenzene
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Researchers have developed a photosensitive hydrogel system that mimics sunflowers by bending towards light
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We kicked off the year with a controversial question from 1919: can hydrogen bond to two atoms at the same time?
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‘In that future world we are dreaming of, we could make ammonia from just air, water and renewable electricity’ – With ammonia production responsible for substantial CO₂ emissions, researchers are searching for greener alternatives
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Some well deserved celebration from 2022 chemistry Nobel laureate Morten Meldal
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The textbook was first printed in 1984, under an agreement that allowed McMurry to request the copyright be returned to him after 30 years
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One of the most exciting pieces of news in April for chemists everywhere was the development of a program capable of automatically assigning peaks of ¹H and ¹³C NMR data
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Sodium chloride is the most common salt on Earth – so common we just call it salt – and yet very little is known about how surface treatments affect its crystallisation dynamics
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Chemists have made a molecular dodecahedron out of silicon for the first time, with a chloride ion at its heart
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The one millionth structure has just been deposited at
@ccdc_cambridge
! We've worked with the CSD team to pull out some highlights...
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‘There’s an old adage that a day in the lab can save an hour in the library’ –
@awhspeed
discusses his hunt for the best way of protecting his samples from air and water
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Check out what our reviewer
@KGempf
thought about 'Radioactive' - streaming soon on Prime Video.
You and this movie are about to have some serious chemistry. Radioactive streams July 24.
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Researchers have broken the record for the longest nanoribbon with a molecule containing 53 fused rings that together are almost 13nm long
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‘If you look at biology as a chemist, you can’t escape the conclusion that almost every complicated thing that biology does at the molecular level is carried out by a sequence-specific folded heteropolymer’
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Previously it has only been possible to either map the spatial distribution of electrons in molecules or follow electron transfers over time during chemical reactions
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The material is made up of monomers that connect via hydrogen bonds to form six-membered ‘rosettes’
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‘The problem with aromaticity is that, despite 200 years of research, there’s no clear definition, rules or experiments that can identify it among all compounds’ – Katrina Krämer investigates the chemistry of aromaticity
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Ahead of
#BlackinChem
week, we asked its US organisers
@Devin_Eleven
@onlyayanna_
and
@That_Astro_Chic
to share their stories
Being #BlackinChem
The US organisers of #BlackinChem week share their stories
www.chemistryworld.com
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New heatmap software can quantify total and local strain within a molecule in minutes
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In 1995, researchers laid out 8 topics that they believed represented the most ground-breaking challenges in chemistry – 25 years on, we’ve been taking a look at how far these Holy Grails of Chemistry have come:
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The flanking gadolinium ions are paramagnetic and can engage in magnetic exchange coupling, allowing them to stabilise the diradical’s triplet state
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New microscopy techniques mean scientists can watch some reactions almost as they happen
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Our final piece for today is this incredible research from the Jülich Research Centre and the University of Marburg, which let us observe excited molecular orbitals with femtosecond resolution 🤯
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Can chemists make molecules that fold up as well as proteins?
@RachelBBrazil
talks to the people trying to create foldamers
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It’s official! Representatives of 60 countries have unanimously agreed to overhaul the definitions of the kilogram, kelvin, ampere and mole
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The program automatically analyses ¹H and ¹³C NMR data, assigns the peaks, and suggests the most likely structure from a set of candidates
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This is the first time a halogen gas has been detected in the atmosphere of Mars
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The molecules consist of 12 porphyrin groups and 24 organic linker molecules, creating cages with an inner cavity 4.3nm in diameter
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The supramolecules can absorb much longer wavelengths of light than other photosynthetic systems or solar cells
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The iconic quantum double-slit experiment has been demonstrated with individual deuterium molecules as the slits for the first time
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The atomic masses of elements 113 and 115 – nihonium and moscovium – have been measured directly for the first time
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In exciting news for organic chemists, researchers discovered a catalyst that selectively targets C-H bonds over more reactive targets in a molecule
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A theoretical and experimental study in 2019 identified a quadrupole bond between boron and iron in an anionic complex, leading researchers to think the same may be possible with carbon
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The inexpensive catalyst can simultaneously perform two critical stages of a hydrogenation process that converts carbon dioxide into the long-chain hydrocarbon fuels used in jet engines
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Chemists have synthesised the first example of a central tetracoordinated fluorine bridging to neither metal nor hydrogen atoms.
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The 2023 chemistry
#NobelPrize
has been awarded to nanotechnology pioneers Moungi Bawendi, Louis Brus, and Alexei Ekimov for the discovery and synthesis of quantum dots. However, news of their win leaked about two hours before the official announcement.
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The findings lend weight to the theory that after an atom gains an electron, it will act like its neighbour with the same number of electrons
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This endless molecular knot has seven crossings and more than 250 atoms 🪢
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AlphaFold not only predicts protein structures – it's also learnt about the energy landscapes that direct protein folding
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Carbon nanotubes come in a variety of forms, and the first scaffolding approach to making conjugated nanotube architectures has yielded a new family of highly strained carbon-based nanotubes with intriguing optoelectronic and electrochemical properties
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Old stirrer bars were seen to catalyse Suzuki-Miyaura reactions without the need for any additional palladium
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The material, which marine molluscs use to build their shells, could be used in oil spill remediation or biomedicine
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‘He realised that using it well required very specific skills that seemed extremely secret – passed along by chemists for generations’ – The Schlenk Line Survival Guide is helping students to get to grips with air-sensitive chemistry
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The decreasing bond length has previously been attributed to the increasing s-character present in the hybrid orbital, but that may not be the case
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Happy
#WomenInScienceDay2021
! Today marks an opportunity to celebrate the diversity of science and to remember the many
#WomenInScience
who have been overlooked through the years – To get you started, we’ve put together some articles highlighting brilliant female chemists:
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Today is the 185th anniversary of the birth of Dmitri
#Mendeleev
, the father of the periodic table. Our feature examines Mendeleev's life, and how he came to make his famous discovery
#IYPT2019
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‘We’ve built and maintained an ableist system’ – Science continues to throw up barriers for disabled researchers
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‘Although the hydrogen bond celebrated its centenary last year, the debate still hasn’t ceased’ – 100 years after their discovery, the true nature of hydrogen bonds is still hard to pin down
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Showing that a superelectrophilic anion can bind the noble gas crosses hurdle on path to making a stable neon compound
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African American chemist Alice Ball was born
#OTD
in 1892. She led the chemistry department at the University of Hawaii and developed a treatment for leprosy but was denied the credit
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Researchers have uncovered the crystal structure of bleach using x-ray crystallography for the first time since its original synthesis in the 18th century
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It had previously been assumed that people first started using zeolites to purify water in Europe or Asia in the early 1900s
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By only releasing the drug in the presence of elevated levels of acrolein at tumour sites, the drug avoids healthy cells, thereby minimising side effects
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Seeing is believing. Advances in microscopy mean chemists can now watch some of their reactions in minute detail
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Today's
#NationalTellAJokeDay
so WHO'S READY FOR SOME BAD CHEMISTRY PUNS?
Brace yourselves
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When a molecule absorbs energy from light, the first step is rearranging its electrons, but this has never been directly observed before
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The first group to synthesise ferrocene described it as ‘yellow sludge’ and discarded it as a waste product
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The UK’s first NMR machine capable of generating ¹H frequencies in the 1GHz range is being installed at the University of Warwick
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The official radius of a proton is 0.88 femtometres, which was established using spectroscopic measurements of hydrogen
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What are quantum dots, besides the subject of the latest
#NobelPrize
in chemistry?
This explainer covers what they are, who invented them, how they're made, why they're found in TVs and many more questions!
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The stirrer bar is made up of microelectronics encased within a 3D-printed shell and can record information such as reaction temperature and mixture viscosity
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An international team has broken the record for the longest nanoribbon, with a molecule featuring 53 linearly fused rings and over 320 conjugated atoms that is almost 13nm long
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‘Work smarter, not harder. Do the best with what you have and take each day as it comes’ – Time lost during the pandemic shouldn’t be made up by overworking
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Japanese researchers have just created the longest carbon-carbon bond:
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A molecular anion that contains neon is now a reality – thanks to the work of researchers in Germany
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Linus Pauling originally quantified electronegativity with his famous equation in 1932 – 89 years later, that equation got an upgrade
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A team of researchers in Japan have used carbon nanobelts to form the largest iptycene to date
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In the 150 years since helium was discovered, scientists have only just forced it into a compound (at 113 gigapascals)
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Researchers have tried starving cancer cells of copper before, but this is the first time the approach has appeared to leave healthy cells undamaged
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