A new tetrameric Cu-II cluster with square topology exhibiting ferro- and antiferromagnetic magnetic pathways: which is which?

Ray, M.S., Ghosh, A., Das, A., Drew, M.G.B., Ribas-Arino, J., Novoa, J. and Ribas, J. (2004) A new tetrameric Cu-II cluster with square topology exhibiting ferro- and antiferromagnetic magnetic pathways: which is which? Chemical Communications (9). pp. 1102-1103. ISSN 1359-7345 doi: 10.1039/b401061b

Abstract/Summary

[Cu4L2(bpy)(4)(H2O)(3)](ClO4)(4).2.5H(2)O, 1, a new tetranuclear Cu-II cluster showing square planar geometry, formed with aspartate bridging ligand (L) has been synthesized. The global magnetic coupling is ferromagnetic but theoretical DFT/B3LYP calculations are necessary to assign which Cu-L-Cu side is ferro or antiferromagnetically coupled.