Gaining control of the building blocks of magnetic materials will enable the design and growth of bespoke magnetic devices. However, the ability to tune the magnetic interactions within a particular molecular framework remains in its infancy. In this project we propose muSR measurements on three low-dimensional molecular materials based on Cu2+ ions. These represent variations on the structure of known realizations of low-dimensional magnets and are intended to provide an insight into the structure-magnetism relationship. These materials are quasi-two and one-dimensional magnets and we will measure transitions to long range magnetic order (often only observable with muons) along with dynamic fluctuations and oscillations due to F-mu dipole coupled bound states, which provide further insight into the environment of the muon.