Hydrothermal Synthesis of a Microporous Organic-Inorganic Hybrid Framework Fe_(0.28)V_(0.72)OH_(0.8)(NH_4)_(0.2)(C_8H_4O_4)· 0.53(C_8H_6O_4)

摘要

Single crystals of a novel organic-inorganic framework [Fe_(0.28)V_(0.72)OH_(0.8)(NH_4)_(0.2)(C_8H_4O_4)]· 0.53(C_8H_6O_4) , 1, have been prepared by hydrotheRMal synthesis in the presence of an oxidizing agent. The structure was solved by single crystal X-ray diffraction: space group Pnma, a = 17.6956 (19) A, b = 6.8745 (7) A, c = 11.9303(12) A. The three dimensional framework is constructed from Fe/V-O chains that are cross-linked by 1,4-benzene dicarboxylate (BDC) anions forming large one-dimensional channels. As synthesized, the compound contains additional dicarboxylate groups occupying disordered positions in the channels that can be removed by heating. The chemical reactivity of 1 and its magnetic properties are reported. The new phase is closely related to analogous Cr (III) and V(III) phases recently reported by Ferey and co-workers.