二新奇建筑群是基于 2-aminopyridine 和 polyoxometalates (POM ) 提出了(C5H7N2 )6-[PMo11VMoVIO40 (VIVO ) 4 ]
Two novel complexes based on 2-aminopyridine and polyoxometalates (POMs) formulated as (C5H7N2)6- [PMo11^ⅤMo^ⅥO40(V^ⅥO)4]·H2O (1) and (C5H7N2)16[P2W18O61.5]2 (2) were hydrothermally synthesized and structurally characterized by elemental analysis, ICP, IR, UV-Vis, TG, ESR and single crystal X-ray diffraction methods. Complex 1 consists of a novel tetra-capped Keggin POMs, [PMo11^ⅤMo^ⅥO40(V^ⅣO)4]^6-, in which four [V^ⅣO5] square pyramids cap the equatorial positions of Keggin core [PMo11^ⅤMo^ⅥO40]^14-, linked together with six protohated 2-aminopyridine via hydrogen bonding interactions. Dawson and lacunary Dawson POMs, [P2W18O62]^6- and [P2W17O61]^10- coexist in complex 2, they link together with sixteen protonated 2-aminopyridine via hydrogen bonding interactions. Complex 2 exhibits photochromic property.