We report here magnetic studies of Cu-based organometallic monomers and polymers. Magnetic susceptibility measurements at high temperature, on monomers having different side groups, show antiferromagnetic Curie-Weiss behavior consistent with a single spin-1/2 per Cu atom and an antiferromagnetic Curie-Weiss temperature θ≊1 K. The low-temperature magnetization remains linear to μBH/kBT ≥ 1, suggestive of 1D antiferromagnetic Heisenberg interactions. A sharp decrease in the effective spin per Cu atom is observed in the polymerized organometallic system, with the number of spins decreasing with the degree of polymerization.
ASJC Scopus subject areas
- Physics and Astronomy(all)