Synthesis, crystal structures, luminescence properties of two metal coordination polymers derived from 5-substituted isophthalate and flexible bis (triazole) ligands

• Published in: Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy Vol. 129; pp. 125 - 130
• Main Authors: Ming, Chun-lun, Wang, Li-na, Hecke, Kristof Van, Cui, Guang-hua
• Format: Journal Article
• Language: English
• Published: England Elsevier B.V 14.08.2014
• Subjects: Bis (triazole) ligand; Coordination Complexes - chemical synthesis; Coordination Complexes - chemistry; Crystal structure; Crystallography, X-Ray; Ligands; Luminescence; Luminescent Agents - chemical synthesis; Luminescent Agents - chemistry; Metal–organic framework; Models, Molecular; Phthalic Acids - chemical synthesis; Phthalic Acids - chemistry; Polymers - chemistry; Spectrophotometry, Infrared; Triazoles - chemical synthesis; Triazoles - chemistry; Bis (triazole) ligand; Metal–organic framework; Luminescence; Crystal structure
• ISSN: 1386-1425; 1873-3557
• DOI: 10.1016/j.saa.2014.03.025

[Display omitted] •Two new metal coordination polymers have been synthesized.•IR, PXRD, TG technique for the polymers.•X-ray single-crystal structure analyses and discussion for two polymers.•Luminescence properties of two complexes have been investigated. Two new metal complexes, [Ni(btx)(nip)(H2O)]n (1), {[Cd(btx)(mip)(H2O)]·H2O}n (2) (btx=1,4-bis(1,2,4-triazol-1-ylmethyl)benzene, H2nip=5-nitroisophthalic acid, H2mip=5-methyisophthalic acid) were synthesized under hydrothermal conditions and characterized by single-crystal X-ray diffraction methods, IR spectroscopy, TGA and elemental analysis. Complex 1 features a 3D metal-organic framework with three-fold interpenetrating CdSO4-type topology. Complex 2 exhibits a 2D network with square grid units, which is further extended into a rare 3,5T1 three-dimensional supramolecular network via three modes of classical OH⋯O hydrogen bonds. In addition, luminescence properties of 1 and 2 have also been investigated in the solid state.