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According to Guggemos, Slavicek and Kresin, about 5-6!. This is one of those simple ideas, which is probably quite tough to do experimentally. It involved blasting water vapour through a pinhole, adding HCl andmeasuring the dipole-moment induced deflection...
The title of this post refers to the sitehttp://howopenisit.org/ which is in effect a license scraper for journal articles. In the past 2-3 years in the UK, we have been able to make use of grants to our university to pay publishers to convert our publications...
Steganone is an unusual natural product, known for about 40 years now. The assignment of its absolute configurations makes for an interesting, on occasion rather confusing, and perhaps not entirely atypical story. I will start with the modern accepted stereochemical...

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On 8th August this year, I posted on a fascinating article that had just appeared in Science (DOI:10.1126/science.1188002), in which the crystal structure was reported of two small molecules,1,3-dimethyl cyclobutadieneandcarbon dioxide, entrapped together inside...
It is not often that an article on the topic of illusion and deception makes it into a chemical journal. Such is addressed (DOI:10.1002/anie.201102210) in no less an eminent journal than Angew Chemie. The illusion (or deception if you will) actually goes to...
Do you fancy a story going from simplicity to complexity, if not absurdity, in three easy steps? Read on! The following problem appears in one of our (past) examination questions in introductory organic chemistry. From relatively mundane beginnings, one can...

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I was all set to write a review of an interesting study of bowtiene 1: its rearrangement to other C10H6 isomers and its dimerization. But as I was gathering my information, I wanted to prepare the images of the optimized geometries, and so I went to get the...
Contributed by Steven Bachrach.Reposted from Computational Organic Chemistry with permissionA short note here mainly to call to the readers attention a fascinating trialogue on the C2 molecule.1Shaik, Danovich, Wu, Su, Rzepa, and Hiberty2 recently...
A short note here mainly to call to the readers attention a fascinating trialogue on the C2 molecule.1 Shaik, Danovich, Wu, Su, Rzepa, and Hiberty2 recently presented a full CI study of C2 and concluded that the molecule contains a quadruple bond (see my previous...