NNNS chemistry blog http://chem.vander-lingen.nl Chemistry blog : news - comments - basics in chemistry en-us 1440 Yttrium ferricyanide http://chem.vander-lingen.nl/articles/Yttrium ferricyanide/id/246/itemid/843 In the chemical zoo this week: yttrium ferricyanide YFe(CN)6. Otherwise a truly unremarkable compound but for one property: its compressibility. Duyker et al. report about it in Nature Chemistry (DOI). Measuring it is one thing: 25% at 1.5 Gpa - by neutron powder diffraction - but figuring out how e Sunday 17 Jan 2016 21:55:25 Clean that NMR tube http://chem.vander-lingen.nl/articles/Clean that NMR tube/id/246/itemid/842 Some practical advice from Thanh Binh Nguyen in the latest issue of OPR and D: a novel way to clean NMR tubes! (DOI). This being a long-outstanding challenge in laboratories all over the world you might be interested. The method requires a vacuum desiccator and a beaker and nothing else. It is adver Sunday 17 Jan 2016 17:14:25 Ecstasy in your next meal http://chem.vander-lingen.nl/articles/Ecstasy in your next meal/id/246/itemid/841 In The Netherlands the curse of the illegal drug laboratories continues (earlier episode here). Latest development: the chemical waste associated with it may end up in my next meal (NOS scoop here). How? Even though there are no signs that illegal drug production is diminishing (despite law enforcem Saturday 09 Jan 2016 21:01:28 Elsewhere on the Net http://chem.vander-lingen.nl/articles/Elsewhere on the Net/id/246/itemid/840 One year ago this blog featured the segment Elsewhere On The Internet and again this year we have a look at other blogs happening around the world. Lamentations on Chemistry discusses the hidden dangers of cleaning up magnesium. Another warning is from In The Pipeline on a recent incident with Saturday 09 Jan 2016 12:29:37 The joys of rice wine http://chem.vander-lingen.nl/articles/The joys of rice wine/id/245/itemid/839 You cannot escape rice wine when on vacation in Vietnam, it is staple tourist stuff but also cheaper than beer. It is mass-produced by local farmers despite government attempts to have it banned (link). Rice wine is a topic in serious scientific research! see here end here. Question is: how is it ma Thursday 31 Dec 2015 18:12:08 Antroquinonol A is not what it seems http://chem.vander-lingen.nl/articles/Antroquinonol A is not what it seems/id/245/itemid/838 Just as easy as total synthesis was laid to rest in the last episode of this blog - sorry pointless, time to move on - The Baran lab this week makes a clear case to continue business as usual: total synthesis is important! Case at hand: what the hell is in Taiwanofungus camphoratus that makes it the Wednesday 23 Dec 2015 19:34:25 The truth about total synthesis http://chem.vander-lingen.nl/articles/The truth about total synthesis/id/245/itemid/837 An interesting comment in the latest issue of Nature by Philip Ball titled "Chemistry: Why synthesize?". His take on total synthesis is of particular interest. The pros and cons of total synthesis are continuously debated in the blogs and on twitter with consensus definitely heading towards "utterly Thursday 17 Dec 2015 20:10:32 The Elsevier War ends here http://chem.vander-lingen.nl/articles/The Elsevier War ends here/id/245/itemid/836 As reported here earlier, the Dutch universities declared war on scientific publisher Elsevier in 2015 (link, link) demanding an affordable open access model. This war has now ended in an agreement. The good news: Dutch researchers can now publish their articles open access without any costs. In Wednesday 16 Dec 2015 19:01:02 Graphene Origami http://chem.vander-lingen.nl/articles/Graphene Origami /id/244/itemid/835 A new contestant in our continuous coverage of self-propelling, swimming or walking chemical entities, be it at the molecular level or the macroscopic. At long as it MOVES. See previous episode here. This week Jiuke Mu et al. treat us to graphene origami! (DOI). <br /><br /> Through a masking tec Saturday 07 Nov 2015 21:56:00 Lithium to air battery redesign http://chem.vander-lingen.nl/articles/Lithium to air battery redesign/id/244/itemid/834 In the news this week: a new development in battery design that allows you to drive from London to Edinburgh on a single car battery (DOI), at least according to several news outlets (BBC,FT, The Independent). Now, in The Netherlands we have a lot of electrical hybrid cars but only for tax evasion p Tuesday 03 Nov 2015 19:14:05 Science budget breakdown http://chem.vander-lingen.nl/articles/Science budget breakdown/id/243/itemid/833 The newspaper NRC has the scoop: what amount of money is spent on scientific research in The Netherlands and as a public translation service here are the numbers. The total expenses for higher education have increased from just under 2 billion Euro in 1990 to just over 3 billion in 2015 given a popu Friday 30 Oct 2015 18:50:36 Ancient chemical laboratories http://chem.vander-lingen.nl/articles/Ancient chemical laboratories/id/243/itemid/832 Last week the remains of a chemical laboratory were discovered in a University of Virginia building (link). The Rotunda as it is called was designed by Thomas Jefferson in 1822 and prominently visible in the lab is a chemical hearth. Certainly the oldest lab in existence in the USA but how about the Saturday 17 Oct 2015 21:16:46 Urea in your Diesel http://chem.vander-lingen.nl/articles/Urea in your Diesel/id/242/itemid/831 Do Volkswagens have secret urea compartments? The car company has been found cheating at NOx emission tests in the USA which makes their cars (diesels more specifically) look much more environmentally friendly than they really are. But what does the "defeat device" look like? In many reports it is j Tuesday 22 Sep 2015 18:45:29 The microscrubbers http://chem.vander-lingen.nl/articles/The microscrubbers/id/242/itemid/830 In our continuing coverage of Things-That-Move (Making-It-Move) see previous episode, we have a first contestant with an actual usability claim! Carbon dioxide sequestration no-less. In a recent Angewandte Uygun et al. (DOI) describe so-called microscrubbers that in the near-future should patrol the Saturday 12 Sep 2015 00:04:27 Increasing decreasing complexity we are not sure http://chem.vander-lingen.nl/articles/Increasing decreasing complexity we are not sure/id/242/itemid/829 Li and Eastgate in Organic and Biomolecular Chemistry introduce a complexity index for molecules and for synthetic schemes (DOI). Nothing fancy to do with computer algorithms or graph theory but simply inviting a troupe of experienced chemists in the flesh to rank molecules or reactions by complex Friday 11 Sep 2015 22:44:00 Amine basicity and ionic liquids http://chem.vander-lingen.nl/articles/Amine basicity and ionic liquids/id/242/itemid/828 Mao et al. in a recent JOC (DOI) took it on themselves to measure the basicity of 21 amines in an ionic liquid. The basicity range of amines in water or acetonitrile is well established. But what about IL's? The Mao crew think highly of themselves: '<i>The standard deviation was much superior to tha Friday 11 Sep 2015 18:58:30 Carbon dioxide plus methane http://chem.vander-lingen.nl/articles/Carbon dioxide plus methane/id/241/itemid/827 News from the field of carbon dioxide reforming, the experimental process of taking carbon dioxide and methane directly to syngas (carbon monoxide and hydrogen). Methane is already used commercially in syngas production via steam reforming so a modification would get rid of a lot of greenhouse gas c Saturday 22 Aug 2015 23:32:55 Cellulose to glucose http://chem.vander-lingen.nl/articles/Cellulose to glucose/id/241/itemid/826 Anh The To et al. of the Alexander Katz group at Berkeley report on a faster way to hydrolyze crystalline cellulose to glucose. (DOI) This process is of interest to biofuels and the synthesis of chemicals from biological sources. Synthetic catalysts have an efficiency of 20% and for carbon catalys Monday 17 Aug 2015 21:30:17 Tianjin chemistry http://chem.vander-lingen.nl/articles/Tianjin chemistry/id/241/itemid/825 The death toll of the 2015 Tianjin explosions currently stands over a hundred. As expected the media debate the cause. Everyone agrees the following chemicals were present in the explosive mix: calcium carbide, potassium nitrate and sodium cyanide (BBC News, Der Spiegel). A dozen Youtube clips demon Saturday 15 Aug 2015 22:06:51 Target aryne http://chem.vander-lingen.nl/articles/Target aryne/id/241/itemid/824 Arynes are well established reactive intermediates in organic chemistry but if you are one of those people who believe something only when they see something you had to wait until 2015 when Avlivek et al. actually took an (AFM) image of one of them as reported in Nature Chemistry (DOI). A specif Friday 14 Aug 2015 18:21:55