Geometry, and Normal Modes of Vibration (3N-6) for Di and Tetra-Rings Layer (6, 0) Linear (Zigzag) SWCNTs; A DFT Treatment. Baghdad Sci.J [Internet]. 2019 Sep. 22 [cited 2024 May 6];16(3(Suppl.):0726. Available from: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/4131