A novel family of molecular qubits based on Copper(II) molecules forming an extended 2D structure on graphene will be investigated here at the level of a monolayer deposit in order to evaluate if, in agreement with the reports on bulk, the intermolecular exchange coupling interaction is still mediated by strong VdW forces when a single layer is prepared by thermal sublimation. A temperature dependent XMCD experiment will be used to evaluate the presence of such interaction flanked by an XNLD test to confirm the formation of an ordered layer as locally observed by STM. The demonstration that an ensemble of molecular qubits can be assembled on surface will open additional perspectives for the development of multifunctional hybrid devices for spintronics and quantum computing.