Three new metal-organic frameworks based on 2-propyl-1H-imidazole-4,5- dicarboxylate: Synthesis, crystal structure and luminescent properties

Rui Qing Fan, Li Yuan Wang, Hong Chen, Guang Peng Zhou, Yu Lin Yang, Wuliji Hasi, Wenwu Cao

Research output: Contribution to journalArticle

24 Scopus citations

Abstract

Three new complexes [Cd(H 2pimda) 2(H 2O) 2]·4H 2O (1), [Zn(H 2pimda) 2(H 2O) 2]·3.5H 2O (2) and [Cd 2(Hpimda) 2(DMF) 2] n (3) (H 3pimda = 2-propyl-1H-imidazole-4,5-dicarboxy acid, DMF = N,N′-dimethylformamide) have been synthesized under hydrothermal or solvothermal conditions, respectively. Crystal structures of complexes 1-3 were determined by single crystal X-ray diffraction. Crystallographic studies on 1 and 2 reveal that both complexes are six-coordinated, whose geometries can be best described as distorted octahedron. Complex 3 was synthesized based on that of complexes 1 and 2. We change the coordination environment of H 3pimda during the synthesis process of complex 3 using organic acid and organic solvent, accordingly, result in different structures ranging from 0D molecule (for 1 and 2) to infinite 2D network (for 3). Complexes 1-3 have blue fluorescent emissions at room temperature in the dimethylsulfoxide (DMSO) solution, which indicate they are potential blue luminescence materials. The blue fluorescent emissions of complexes 1-3 are due to the π → π transitions of intra-ligand.

Original languageEnglish (US)
Pages (from-to)90-96
Number of pages7
JournalPolyhedron
Volume33
Issue number1
DOIs
StatePublished - Feb 9 2012

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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