¹H–¹³C HSQC pulse sequenceCorrelate each proton with the carbon it is bonded to, by two INEPT transfers.Checked against G. Bodenhausen, D. J. Ruben, Chem. Phys. Lett. 69, 185–189 (1980), doi:10.1016/0009-2614(80)80041-8.

d_1

1H:90x

"1/(4J)"

1H:180x 13C:180x

"1/(4J)"

1H:90y 13C:90x mark=a

t_1/2

1H:180x

t_1/2 mark=b

1H:90x 13C:90x mark=c

"1/(4J)"

1H:180x 13C:180x

"1/(4J)" mark=d

1H:fid 13C:dec(GARP)

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

About — who provides it, the terms of use, how to cite it