Rare metal-ion metathesis of a tetrahedral Zn(ii) core of a noncentrosymmetric (3,4)-connected 3D MOF

摘要

An SHG-active noncentrosymmetric (3,4)-connected Zn(II)-organic framework, {[Zn-2(4-abpt)(3,4-pydc)(2)]center dot 2DMAc center dot 3MeOH center dot H2O}(n) (1-Zn), was synthesized using a mixed-ligand system. The 1-Zn framework undergoes metal metathesis, with the complete exchange of the tetrahedrally coordinated Zn-II ions with Cu-II ions while retaining the integrity of the network.