Spin echo pulse sequenceRefocus chemical-shift evolution and field inhomogeneity with a 180° pulse.Checked against E. L. Hahn, Phys. Rev. 80, 580–594 (1950), doi:10.1103/PhysRev.80.580; H. Y. Carr, E. M. Purcell, Phys. Rev. 94, 630–638 (1954), doi:10.1103/PhysRev.94.630.

d_1 p=0

1H:90x mark=a

τ p=+1 mark=b

1H:180x mark=c

τ p=-1 mark=d

1H:fid p=-1

Process NMR spectra in NMRium and draw pulse sequences, from a library of standard experiments or column by column, and save both as figures that open again. The site needs JavaScript, because every spectrum and figure is handled in your browser.

NMRium — Bruker, Varian, JEOL and JCAMP-DX, 1D and 2D, kept as figures

Pulse sequences — INEPT, DEPT, COSY, HSQC and more, drawn as figures

Talks — how a ¹H NMR spectrum arises, and how to read a pulse sequence

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