📷 A product crystallized in these nice needles in s small vial. We planned to obtain an X ray diffraction to know an exact structure of this special molecule, unfortunately these needles are too thin for an X ray measurement.
Labphoto photoblog’s Tweets
📷 Just a snapshot from the fume hood as it looks like during a normal day.
📷 Preparation of an oxygen saturated solution in a graduated cylinder. It is often painful to know the reason of side reactions or even get clues about how a reaction proceeds. In this case the reaction was performed in an oxygen saturated...
📷 Barbier-type allylation of aldehydes with allylic bromide and tin(II) chloride in presence of potassium iodide and ammonium chloride in water. During the reaction tin(II) iodide forms what is visible from the color change of the...
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📷 Performing a photochemical transformation using white light and the slow addition of a photocatalyst. On left there is a reaction that is stirred on a magnetic stirrer and kept under a slight over pressure of nitrogen gas to keep the...
📷 When we ran out of space and magnetic stirrers in the fume hood quite crowded oil baths are in operation. In this case, total 6 reaction is performed on quite wide variety of scales and using different techniques. From standard round...
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📷 Recrystallizing a raw product using an infra lamp as a heat source. It looks great and it also works well. Instead of a heat gun or an oil bath, we often use infra lamps as heat source during the recrystallization of various products. It...
📷 The lab ran out of balloons that we often use to keep reactions under nitrogen atmosphere and a colleague had a a desperate attempt to use a nitrile glove instead of a balloon. I think that anyone is able to decide whether or not it has...
📷 Melting some silver. It was melted in a ceramic crucible with an oxygene/methane torch, under circa 1h. The silver was liquified under a layer of borax (it prevents the oxidation of the molten silver). After all have melted we just... tmblr.co/ZPZqevY6pY7TGm
📷 Reduction using some freshly prepared sodium naphthalenide. It is also known as sodium naphthalide, is an organic salt with the chemical formula Na+C10H8−. In the research laboratory, it is used as a reductant in the synthesis of organic,...
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📷 Filtration of a reaction mixture though a pad of silica gel. It is a well working technique for the purification of different reaction mixtures. If a highly polar, non elutable side product if formed during the reaction, it will stay on...
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📷 A freshly arrived can of cyanogen bromide. Cyanogen bromide is the inorganic compound with the formula BrCN. It is a colorless solid that is widely used in organic chemistry. Some interesting data from the book “toxic industrial...
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📷 Working with tert-butyllithium. This one is a quite useful and well known chemical. It spontaneously ignites on air. tert-Butyllithium is a chemical compound with the formula (CH3)3CLi. As an organolithium compound, it has applications...
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📷 Screening different reaction conditions using a catalystin a special reaction. Each vial contains a different amount/conentration of reactant or another solvent. Often to find the perfect conditions for an organic chemical transformation... tmblr.co/ZPZqevY5DNxtmW
📷 Distilling a reaction mixture using a short path distillation apparatus. The short path distillation apparatus is used when we have to distill heat sensitive compounds that may decompose under prolonged heating. In this case if the...
📷 Just a deep red reaction mixture that slowly separates from the water phase in a separating funnel. In this case a dichloromethane solution was washed with brine and due the similar density of the saturated brine to the dichloromethane...
📷 Making some fresh, absolute tetrahydrofuran (THF) with benzophenone and sodium. The diphenylketyl-sodium has this beautiful deep blue color what only appears if no water, oxygen, CO2 or anything bad is left in the solution. This...
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📷 Pictures from an organic chemistry laboratory turned 8 today! During these years I have done more than a thousand chemical reactions, isolated several hundred compounds, and many of these were never described before. During this 8 year,...
📷 Dissolution of a Grubbs type olefin metathesis catalyst in dichloromethane. Olefin metathesis...
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📷 A freshly crystallized quinone. Quinones are a class of organic compounds that are formally “derived... tmblr.co/ZPZqev2fTZ1VG
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📷 Performing a halogen exchange, a HalEx reaction on a fluorinated compound using boron tribromide. ...
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📷 Preparation of an acid chloride using thionyl chloride and a drop of dimethylformamide from an... tmblr.co/ZPZqev2fQMp4d
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📷 Crystals formed after the evaporation of the solvent from a perfectly pure product. It is adorable...
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📷 Chromatogarphic separation of a quite complex reaction mixture. Column chromatography is a time and...
📷 Workup of a reaction mixture where we used copper as a catalyst. It gave a beautiful result since...
📷 Filtration under inert gas. The basic setup consists of a Schlenk flask, a Schlenk frit, a cap and a...
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📷 Performing a crystallization-induced asymmetric transformatio (CIAT). During the really special type...
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📷 Result of the chromatographic separation of a reaction mixture containing some elemental iodine. ...
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📷 Stirring a reaction mixture using a overhead stirrer on a bit larger scale. In case when we have a...
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📷 Evaporation of a reaction mixture ended up with this in my flask. It looks like some dried mud, or a...
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📷 Let’s start this year with something cool! A Birch reduction. Birch reduction is a really special...
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📷 rhodium-clothing: Up to 50% Off + Free Shipping on Everything with Code CMSHIP - Sale Ends Monday,...
📷 Best place for a poster session of a conference! Today was the second poster session of the 22nd... tmblr.co/ZPZqev2a93JbT
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📷 Got some nice crystals from a really special compound. I worked 3 month to find a way for the...
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📷 Quenching a reaction by pouring it on some cracked ice. The recipe clearly specified that after...
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📷 Preparation of several Grignard reagents used for a specific reaction. Grignard reagents form via... tmblr.co/ZPZqev2a4Nd8g
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📷 Some succinimide precitipated after a bromination of a toluene derivative using NBS...
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📷 A pair of highly fluorescent flask with a recently prepared organic dye in them used for...
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📷 Some triethylamine hydrochloride crystallized to the neck of the flask where probably the septa (that...
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