A New Coordination Polymer of Zn(II)-btc (H(3)btc = Benzene-1,3,5-tricarboxylic acid) with Protonated Acridine: Synthesis, Crystal Structure and Spectroscopic Properties

作者：Pei, Wenbo; Han, Zhangang; Xie, Jingli^*; Zou, Yang; Ren, Xiao-Ming

来源：Journal of Chemical Crystallography, 2012, 42(10): 1007-1013.

DOI：10.1007/s10870-012-0349-y

• Zn(II)-btc coordination polymer
• Protonated acridine
• Hydrothermal reaction
• Crystal structure
• Multiband emissions

A new Zn(II)-btc coordination polymer 1 (H(3)btc = benzene-1,3,5-tricarboxylic acid) containing protonated acridines was synthesized by hydrothermal reaction at 165 A degrees C for 3 days and characterized by FT-IR, UV-Vis, Fluorescence, TGA measurements and single-crystal/powder X-ray crystallography. The crystallographic data for 1: monoclinic, P2(1)/n, a = 11.0100(5), b = 16.7104(7), c = 11.7492(5) , beta = 98.735(2), V = 2136.56(16) (3), Z = 4, T = 130(2) K, Dc = 1.572 g cm(-3), F(000) = 1036, mu(Mo K alpha) = 1.205 mm(-1), GOF = 1.005. R (1) = 0.0427, wR (2) = 0.1410 [I > 2 sigma(I)]. Structural analysis also revealed that the btc(3-) ligands bridge four-coordinate Zn(II) centres to form a 2-D grid-like layer network on the bc plane. The protonated acridines fill up the cavities formed between adjacent layers and combine the 2-D layers to generate a non-interpenetrating 3-D supramolecular framework through the hydrogen bondings and pi A center dot A center dot A center dot pi packing interactions. The fluorescence investigation disclosed that 1 shows multiband emissions over a wide range.
A non-interpenetrating 3-D supramolecular framework, built from Zn(II) ions and benzene-1,3,5-tricarboxylate ligands, encapsulates the protonated acridines and exhibits multiband fluorescence emissions over a wide range.

• 出版日期2012-10
• 单位浙江理工大学; 南京工业大学