1. Division of Industrial Metrology
2. Korea Research Institute of Standards and Science
3. Daejeon 34113
4. Republic of Korea
5. Department of Nano Science
6. Pohang Accelerator Laboratory
7. POSTECH
8. Pohang 37673
9. Computer Chemistry Center
10. Friedrich-Alexander University of Erlangen-Nuremberg
11. 91052 Erlangen
12. Germany