  Using the semiempirical tight binding method as implemented in the xTB
program, we characterized M\"obius boron-nitride and carbon-based nanobelts
with different sizes and compared them with normal nanobelts. The calculated
properties include the infrared spectra, the highest occupied molecular orbital
(HOMO), the lowest unoccupied molecular orbital (LUMO), the energy gap, the
chemical potential, and the molecular hardness. The agreement between the peaks
positions from theoretical infrared spectra compared with experimental ones for
all systems, validate the used methodology. Our findings show that for the
boron-nitride based nanobelts, the calculated properties have opposite
monotonic relationship with the size of the systems whereas, for the
carbon-based, the properties show the same monotonic relationship for both
types of nanobelts. Also, the torsion presented on the M\"obius nanobelts, in
the case of boron-nitride, induced an inhomogeneous surface distribution for
the HOMO orbitals. In all cases, the properties vary with the increase in the
size of the nanobelts indicating that it is possible to choose the desired
values by changing the size and type of the systems.
