1. Chemistry Department College of Science University of Raparin Rania Kurdistan Region 45221‐87911 Iraq
2. Institute of Nano Science and Nano Technology University of Kashan Kashan 87317‐51167 Iran
3. Department of Electrical Engineering and Computer Science University of Michigan Ann Arbor MI 48109 USA
4. Centre for Theoretical and Computational Molecular Science Australian Institute for Bioengineering and Nanotechnology The University of Queensland Brisbane QLD 4072 Australia