Macs in Chemistry

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Orange NMR update


Orange NMR has been updated.

Orange NMR is an App to predict 13C and 1H NMR spectra: draw a structure to see its spectrum. The accuracy of the algorithm is about 1.9 ppm for 13C and 0.21 ppm for 1H (RMSD=3.4 and 0.31 ppm correspondingly). The number of heavy atoms in structure to predict for free is restricted to 12 atoms. This restriction can be removed by purchasing additional licenses.

  • Instantly re-calculate spectrum while changing structure;
  • Predicted spectra stored in iCloud and synchronised among all iOS devices and Mac version (;
  • Email PDF report;
  • Zoom in spectrum;
  • Zoom in structure (important for iPhone users);
  • Option to display chemical shift values on structure;
  • Simple clean interface.

The prediction algorithm is derived by: K. A. Blinov, E. D. Smurnyy, T. S. Churanova, M. E. Elyashberg, A. J. Williams, Chemom. Intell. Lab. Syst. 2009, 97, 91

What's New in Version 2.4 More accurate 3J H-H couplings prediction.

There are many more science apps for mobile devices here.

Chemistry on Mobile Devices Meeting

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