compute_unit_cell_mass

sknano.core.structures.compute_unit_cell_mass(*Ch, element1=None, element2=None, **kwargs)

Compute nanotube unit cell mass in Daltons/atomic mass units (amu) units.

Parameters:

• *Ch –

  Either a 2-tuple of ints or 2 integers giving the chiral indices of the nanotube chiral vector \(\mathbf{C}_h = n\mathbf{a}_1 + m\mathbf{a}_2 = (n, m)\).

• element2 (element1,) – Element symbol or atomic number of basis Atom 1 and 2

Returns:

Unit cell mass in Daltons.

Return type:

float

Notes

Todo

Handle different elements and perform accurate calculation by determining number of atoms of each element.