We recommend you to assign your atoms to your multiplet boxes in order to transfer assignments through datasets. In the example below, we have assigned a -CH2 group, so a new window will be displayed to allow us to select which atom we want to assign, 18, 18', both (in blank) or even we can select any other annotation: 18a, 18b, cis/trans, ax/eq, etc:Īssign a multiplet by dragging the mouse to the 'multiplet box' (in this case the name of the multiplet is replaced with the atom number) or to the 'integral curve', as you can see in the picture below: You can also assign a region of the spectrum just by clicking, dragging and releasing the mouse over the desired region. Once the assignment has been made, you will get an atom number label on the chemical shift and hovering the mouse over the atom will highlight the applicable peak in the spectrum and hovering the mouse over the peak will highlight the corresponding atom on the molecular structure. This peak will now be assigned to the atom (which will turn to green). Once your desired peak is highlighted on the spectrum, click on it to assign it. Then follow the menu 'Analysis/Assignment' (or use the shortcut 'A').Ĭlick on an atom on the molecular structure (or a spectrum region) and then release the mouse and drag it to your desired peak. Open your NMR spectrum and load a molecule structure. Mnova provides a very simple interface to assign your molecule. Note: Do not forget to have a look at our 1H NMR Automatic Assignments Tutorial

View multiple spectra mestrenova