Hydrothermal Synthesis, Crystal Structure and Characterizationof a Novel 3D Pillared-Layer 3d-4f Lanthanum-CopperHeterometallic Coordination Polymer

摘要

A novel three-dimensional (3D) pillared-layer 3d-4f lanthanum-copper heterometallic coordination polymer, {La_2Cu_7I_6(IN)_7(H_2O)_6-2H_2O}_n (1) (HIN = isonicot-inic acid), has been synthesized by hydrothermal reaction of La_2O_3, Cul, HIN with HNO_3, and characterized by elemental analyses, IR, PXRD, and single-crystal X-ray diffraction. The structure determination reveals that the 3D framework of 1 is constructed upon [Cu_7I_6]~(n+) inorganic layers linked by dimeric La_2(IN)_6 pillars. Additionally, the thermogravimetric analysis and luminescent property of 1 were investigated and discussed.