The goal of this project is to obtain new magnetic materials by connecting small and nanosized clusters through adequate linkers and to examine the physical properties of both, the clusters and the coordination polymers. Several synthetic strategies will be used to ensure efficient magnetic coupling within the materials. The synthetic protocols will include high-temperature reactions of metal carboxylates in the solid state and in high boiling solvents as well as novel hydro(solvo)thermal, microwave and ultrasonic methods. A variety of magnetic measurements will be done in order to elucidate the magnetic coupling schemes of these compounds. Preferentially, the detailed analyses will be based on structural data gained from X-ray investigations.