One-dimensional metal-organic frameworks based on N-heterocyclic ligand and 5-Amino-isophthalic acid: Synthesis, structure, and photoluminescent properties

ABSTRACT

One complex [Mn(dnpt)(aic)]_n [dnpt = 2-(4-nitrophenyl)-1H-imidazo[4,5-f][1,10]phenanthroline, aic = 5-Amino-isophthalic acid] was obtained from hydrothermal reaction and was characterized by elemental analysis, IR, and single-crystal X-ray diffraction. The crystal structure shows that the manganese ion is coordinated with two nitrogen atoms of one dnpt molecule and four oxygen atoms from three aic molecules, forming a distorted octahedral coordination geometry. Each Mn(II) atom is linked by aic ligands with neighbor Mn(II) atoms, forming an infinite one-dimensional (1D) double-chain structure. The luminescent properties for the ligand and complex 1 are also discussed in detail (CCDC 1030059).

KEYWORDS:

• 5-Amino-isophthalic acid
• hydrothermal synthesis
• Mn(II) complex
• crystal structure
• fluorescence

Funding

The authors thank the National Natural Science Foundation of China (No. 21406085) and the Science Development Project of Jilin Province of China (20130522071JH) for financial support.