1. Institute of General and Physical Chemistry, Studentski Trg 12/5, 1100 Belgrade, Serbia
2. Centre for NMR, School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland 1010, New Zealand
3. School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland 1010, New Zealand
4. MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington 6012, New Zealand