rendering options: unsigned Jmol applet signed Jmol applet JSmol (HTML5 only) JSmol (WebGL) image only
The spectra are "hot-linked" to the molecular graphic display
such that selecting a peak in the IR spectrum will cause a
vibrational mode animation to be loaded, or selecting a peak in
the NMR spectra will cause the appropriate H or C atoms to be
highlighted.
You can use the Jmol menu or alternatively select an IR mode from here.
Reference:
Google Docs