Syntheses, structures, and characterizations of two new indium(III) compounds from 1D center dot center dot center dot In-OH-In-OH center dot center dot center dot chains and pyridinedicarboxylic ligands

摘要

The self-assembly of In2O3 with 2,5-pyridinedicarboxylic acid (2,5-H2PDC) and 3,5-pyridinedicarboxylic acid (3,5-H2PDC) generates two hybrid inorganic-organic compounds [In(OH)(2,5-PDC)](n) (1) and [In-2(OH)(2)(3,5-PDC)(2)(H2O)](n) (2), respectively. The two compounds have been characterized by IR, XRPD, elemental analysis, and photoluminescent studies. The structure of 1 consists of corner-sharing InNO5 octahedra and 2,5-PDC ligands to form 2D frameworks with thermal stability up to ca. 347 degrees C. The 3D framework of 2 contains corner-sharing InN2O4 octahedra and InO7 decahedra with a 406 nm emission at 77 K. Both of the compounds possess similar one-dimensional center dot center dot center dot In-OH-In-OH center dot center dot center dot inorganic chains.