Slight synthetic changes eliciting different topologies: synthesis, structure and magnetic properties of novel dinuclear and nonanuclear dysprosium complexes

摘要

Using the Schiff-base ligand 1,5-bis(2-hydroxy-3-methoxybenzylidene)carbonohydrazide (H(2)hmc), dinuclear and nonanuclear compounds, [Dy-2(Hhmc)(2)(NO3)(4)]center dot THF center dot MeCN (1) and [Dy-9(mu(3)-O)(4)(mu-OH)(6)(hmc)(4)(NO3)(4)(DMF)(4)](OH)center dot H2O center dot THF center dot DMF (2) are generated through the addition of different bases, respectively. Single-crystal X-ray diffraction analysis revealed a unique Dy9 core structure of complex 2, and the magnetic properties of both compounds are fully studied.