Afterwards, we employ similar approaches as for the triangulene monomer and dimer to calculate the ΔEspin and the J of the whole collection and generate a triangulenes magnetism dataset (see computational details). We found that all the molecules, except for triangulene monomer, have OSS ground states and AFM interactions with J < 0 (Table ). Our results show that the triangulene-based molecules exhibit a wide range of magnetic properties, with the ΔEspin and J values ranging from -2.73 eV to -0.34 eV and from -203 meV to -1.0 meV, respectively (Figure and Table ). These molecules can be broadly classified into three categories based on their ΔEspin and J values: those with strong J and weak ΔEspin (mostly TOT and TAM series), those with weak J and weak ΔEspin (TRI(N), TRI(B), and PLY series), and those with weak J and strong ΔEspin (TRI series). For all the diradicals, the orbitals in their active space follow the pattern of (π1