To obtain a more general understanding on the magnetic interactions of triangulenes, we created a collection of triangulene analogues as depicted in Figure , which cover a wide range of triangulene-centered radicals. In addition to triangulene monomer (TRI), they involve trioxotriangulene (TOT), triarylmethyl (TAM), nitrogendoped triangulene (TRI(N)), boron-doped triangulene (TRI(B)) and phenalenyl (PLY).