Molecular materials are ideal candidates for quantum materials because the inherent size of their bricks is well below the quantum limit. In contrast to other material classes, the monodispersity of molecular materials should allow for a large number of identical copies of quantum objects to be produced. Moreover, synthetic control within the molecular bricks enables a fine tuning of the local environment of atoms, in which the quantum character can be exploited. Such an approach may open new avenues to materials where synthetic chemistry meets quantum physics.