MOLECULAR PUZZLE

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https://sdbs.db.aist.go.jp/

For research work, it is always necessary to identify molecules, and one way to do this is by using spectra. There is a database of spectra where you can actually find any known molecule. 

I used this site as I need it, but I certainly use it every semester.  I used a lot for my organic chemistry 3 course, it's great to have access to this kind of stuff and if you are taking your third organic chemistry, this site will help you a lot. it's the best!!!  

The Spectral Database for Organic Compounds (SDBS) is a free online searchable database hosted by the National Institute of Advanced Industrial Science and Technology (AIST) in Japan, that contains spectral data for ca 34,000 organic molecules. The database is available in English and in Japanese and it includes six types of spectra: laser Raman spectra, electron ionization mass spectra (EI-MS), Fourier-transform infrared (FT-IR) spectra, 1H nuclear magnetic resonance (1H-NMR) spectra, 13C nuclear magnetic resonance (13C-NMR) spectra and electron paramagnetic resonance (EPR) spectra. 

The database can be searched by entering one or more of the following parameters: chemical name, molecular formula, number of different types of atoms present in the molecule, molecular weight, CAS Registry Number or SDBS number. the result of the search includes all the available spectra for the search parameters entered.

If a spectrum of an unknown chemical compound is available, a reverse search can be carried out by entering the values of the chemical shift, frequency or mass of the peaks in the NMR, FT-IR or EI-MS spectrum respectively. This type of search affords all the chemical compounds in the database that have the entered spectral characteristics.  

The acetylsalicylic acid commonly used for headaches when you take aspirin, is the molecule below with its 13C nuclear magnetic resonance. Here we can see its signals, each molecule has its own spectrum and that is amazing. 




I hope you know what I am talking about, if not, you will soon find out and I hope you remember this page.



Comentarios

  1. YaniraCeron20 de junio de 2021, 12:19 p.m.

    this is a good fact to study organized! I hope to use it in time, thank you!

    ResponderBorrar

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