Since I have gotten into the habit of quoting some of my posts in other contexts, I have started to also archive them using WebCite. One can quote the resulting archive as: Rzepa, Henry. Quintuple bonds.  2010-04-18. URL:http://www.ch.ic.ac.uk/rzepa/blog/?p=1722. Accessed: 2010-04-18. (Archived by WebCite ^® at http://www.webcitation.org/5p5BtuzSH) There is one issue though.

Mauksch and Tsogoeva have recently published an article illustrating how a thermal electrocyclic reaction can proceed with distoratory ring closure, whilst simultaneously also exhibiting 4n electron Möbius-aromatic character[cite]10.1002/anie.200806009[/cite]. Why is this remarkable?

There was some talk about the history of chemoinformatics toolkits by Noel and Andrew, which made me wonder on the exact history of Jmol and JChemPaint.

Some time ago I blogged about the ChildResourceCreator extension point in Bioclipse and hinted as using that for PDB files. which contain 3D molecular models, sequences and bibliographic information.

Bernard Munos at Eli Lilly & Co. wrote up a lengthy analysis on open source in drug discovery in Nature Reviews Drug Discovery: Can open-source R&D reinvigorate drug research?

The Eclipse Rich Client Platform (RCP) is very powerfull, and takes a lot of architectural things of your hand when developing a bio- and chemoinformatics GUIs. Bioclipse is based on it. One thing the RCP offers is a Help View which works with plain (X)HTML files, and one neat feature is the context help. It is help shown in the Help View when one focused on a specific GUI element.

David Strumfels posted news about the Useful Chemistry CMLRSS feed . He explains how this feed can be accessed using Jmol and Bioclipse. The latter are accompanied by two AVI movies: one about creating a new OPML file, and one about accessing the CMLRSS file from the OPML.

November last year, I reported my plans to develop a live CD with all our favorite chemo- and bioinformatics software. Bioclipse requires Java5 and sort of still depends on the Sun JVM (I will experiment with classpath-generics later), but is now distributable with operating systems.

Here are some quick download statistics for some of the chemblaics components. First Jmol. The new stable Jmol 10.2 was release just over a week ago, and this obviously boosted downloads, breaking the monthly download total of two earlier this year (source): Statistics for the CDK include download numbers for the CDK library itself, but for JChemPaint, the CDK News, and several other packages too. Totals are at about 1/3rd of Jmol.

I have not blogged for about a week now, and been too busy with other things, like finishing my PhD articles/manuscript, my new job at the CUBIC where I continued the work on proper protein support in Bioclipse using the CDK and Jmol: The latter involves getting the CdkJmolAdapter , the interface between the CDK and Jmol, updated for changes since the Jmol as 3D viewer for CDK article in CDK News , the open