A new polyoxometalate-based complex with alternate ionic layer structures:hydrothermal synthesis,crystal structure and magnetic property

摘要

A bicapped Keggin anion-supported cobalt-phenanthroline complex [{Co(phen)_2(H_2O)}_2PMo_(10)~(VI)V_4~(IV)O_(42)][{Co(phen)_2}_2 PMo_8~(VI)Mo_2~VV_4~(IV)] centre dot 4H_2O (1) has been hydrothermally synthesized and structurally characterized by elemental analyses,single crystal X-ray diffraction and IR spectrum.Interestingly,all the polyanions constitute an anionic layer,while all the polycations are linked to form a cationic layer by the hydrogen bonding interactions.The result of magnetic measurement for compound 1 shows a typical antiferromagnetic interactions in the 2-300 K temperature range.