400 MHz Bruker Avance lll
Bruker ultra-shielded standard-bore magnet equipped with a 5-mm BBFO probe. The BBFO probe head allows detection of a range of different nuclei in automation - from 31P, 15N, and 13C to 1H and 19F. This instrument is also equipped with a Bruker SampleCase autosampler with 24 positions, and operated by Bruker IconNMR. Data are automatically sent to the user by e-mail and uploaded to an internal file server.
This instrument was funded by the Lundbeck Foundation, and publications based on experiments from this instrument should contain the following sentence in Acknowledgement: 'NMR equipment used in this work was purchased via grant from The Lundbeck Foundation (R77-A6742)'.
Please, send a mail to Emeritus Professor Søren B. Christensen when you are about to acknowledge the use of this instrument
NMR-spectra were acquired using a 400 MHz Bruker Avance II equipped with a 5 mm broad band probe (BBFO). Samples were dissolved in methanol-d4 (Sigma-Aldrich, 99.8 atom % D) and analyzed at 300 K. Proton spectra, at 400.09 MHz, were acquired using 30°-pulses, a spectral width of 8 kHz, collecting 16 scans with a length of 65536 data points with a relaxation delay of 1.0 sec. FID's were zero-filled to twice the size and exponentially multiplied with a line broadening factor of 0.3 Hz before Fourier transform. Carbon spectra were acquired at 100.60 MHz with 30°-pulses, a spectral width of 24 kHz, collecting 256 scans with a length of 65536 data points and with a relaxation delay of 2.0 sec. The 13C nuclei were 1H-decoupled using the Waltz-16 composite pulse decoupling scheme. FID's were exponentially multiplied with a line broadening factor of 1.0 Hz before Fourier transform.
" Acknowledgements: NMR equipment used in this work was purchased via grant from The Lundbeck Foundation (R77-A6742).
400 MHz magnet during filling of liquid nitrogen.