dekay.org

The BBC show Periodic Tales is available on the web now. Stories about the chemical elements… all available in RealAudio format (not iPod compatible, and no podcast!!)

Many nmr solvent peak lists are very useful but not complete. Ⅰ usually just refer to the [J.Org.Chem article by Gottlieb et al.](http://dx.doi.org/10.1021/jo971176v „link to Article’s DOI“) for solvent peaks, the corresponding chemical shifts for water and other commonly used solvents) – but DMF is not on that list as a solvent. A quick googling returned this list:NMR-Lösungsmittel. The introductory text is in German, and translates as:

br = broad signal, ⅿ = fine structure of peaks
*water peaks* depending on concentration and polarity of the dissolved compounds the water peaks may be shifted a bit; temperature differences also influence the chemical shift of water. All 1H-spectra show a broad water peak as a result of atmospheric humidity – usually this peak is neglectable, but in very dilute solutions your integrals may be affected

this is the Google search, resulting in another good table, another one, and many more

Ⅰ student of mine just told me about iNMR… and since Ⅰ like looking at α software (the version is supposed to be 0.0) Ⅰ gave it a shot.

1. First impression: horrible. No toolbar, nothing mac like, as far as Ⅰ am concerned. A look into the menu bar revealed some functions, but somehow Ⅰ was missing the functionalities of Win-NMR or XWin-NMR (which, of course is a) not a nice thing to do, comparing a newcomer to the old bastards and b) which is in itself unfair again, as both apps are not on OSX and have horrible interfaces.) But then Ⅰ gave it a try…

2. Second impression: well there are many functions available, Ⅰ accidentally started hitting keys on my keyboard and suddenly Ⅰ could do all sorts of things: integration, zooming, marking…

3. Third impression: the web based documentation is superb. The graphics are nice.. (and you can also take screenshots)

Summary:

This little app is very promising. It is ba far the best NMR app Ⅰ have seen on OSX so far, and this is just a very early pre-release. Although ⅰ am not very happy with a) the interface and b) the pricing (yes, it is very early and pre-release — Ⅰ can also understand why the makers are doing it, doesnt mean Ⅰ need to be happy with it!).

Ⅰ will give it a look later on – and Ⅰ might end up buying a license for myself – just to make pretty pictures for my thesis…

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For those readers who are not familiar with the term „Schicki Micki“ – check out this definition.

update 2005–11–07 19 : 49:42 Ⅰ am getting many hits to this post from google in the last few days. Dear readers, would you mind telling me why exactly you are searching for shikimic acid? Is it because of its significance for tamiflu®?

The NMR processing software RMN is now available as an alpha version for MacOSX.