Chemistry and spectroscopy

Separations, spectra, correlation maps and electrochemistry. Spectroscopy has strong plotting conventions that are worth honouring even though they look backwards – infrared runs right to left in wavenumber, NMR runs backwards in ppm, transmittance is read downward – and the examples show how to get them with axis inversion rather than by pre-flipping the data.

Fluorescence excitation-emission matrix

Fluorescence excitation-emission matrix

2-D NMR COSY spectrum

2-D NMR COSY spectrum

Cyclic voltammetry against scan rate

Cyclic voltammetry against scan rate

Chromatogram with integrated peaks

Chromatogram with integrated peaks

Electron-ionisation mass spectrum

Electron-ionisation mass spectrum

Infrared spectrum with the conventional reversed axes

Infrared spectrum with the conventional reversed axes

Arrhenius plot and a change of mechanism

Arrhenius plot and a change of mechanism

UV-vis spectrum through a first-order reaction, animated

UV-vis spectrum through a first-order reaction, animated