Thursday, July 19, 2012

Free NMR spectra database

Spectral Database for Organic Compounds SDBS a better place to download most of standard NMR (Nuclear Magnetic Resonance) spectroscopy spectrum for your analysis purposes. It is provide by National Institute of Advanced Industrial Science and Technology (AIST), Japan. The FTIR section managed by T.Yamaji, T.Saito, K.Hayamizu, M.Yanagisawa and O.Yamamoto

Measuring conditions of 1H NMR
1H NMR was measured with a JEOL FX-90Q (89.56 MHz), a JEOL GX-400 (399.65 MHz), or a JEOL AL-400 (399.65 MHz). The measuring conditions for the most of the spectra were as follows: flip angle of 22.5-30.0 degrees, pulse repetition time of 30s. (More information can be obtain from their website)

Measuring conditions of 13C NMR
 13C NMR was measured with a NEVA NV-14 (15.087 MHz), a JEOL FX-90Q (22.530 MHz), a Varian XL-100 (25.160 MHz), a Bruker AC-200 (50.323 MHz), a JEOL FX-200 (50.183 MHz), a JEOL GX-400 (100.535 MHz) or a JEOL AL-400 (100.40 MHz). The measuring conditions for the most of the spectra were as follows: a pulse flip angle of 22.5 - 45 degrees, a pulse repetition time of 4-7 seconds, and a resolution of 0.025-0.045 ppm. (More information can be obtain from their website)

Visit their website for download your standard NMR spectras 

Sunday, July 15, 2012

Free FTIR spectra database





Spectral Database for Organic Compounds SDBS an ideal place to obtain most of standard Fourier transform infrared spectroscopy spectrum for your analysis purposes. It is provide by National Institute of Advanced Industrial Science and Technology (AIST), Japan. The FTIR section managed by S.Kinugasa, K.Tanabe and T.Tamura

 All the IR spectra were measured and indexed in the website was obtained using a Nicolet 170SX or a JASCO FT/IR-410. The spectral resolution for the Nicolet 170SX was 0.25 cm-1, and the spectral data were stored in the database at intervals of 0.5 cm-1 at 4000-2000 cm-1, and of 0.25 cm-1 at 2000-400 cm-1. On the other hand, the spectral resolution and the interval were 0.5 cm-1 for the JASCO FT/IR-410. Liquid samples were measured with liquid film method, and solid samples were measured by using KBr disc and Nujol paste methods.

You can access the database through this link: Database

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