Synthesis, structures and applications as fluorescence probes of novel Hg(II)/Ag(I) functional supramolecular compounds based on nitrogen heterocyclic cations

Article type: Research Article

Authors: Huang, Wen-Ming | Lu, Ya-Bin | Xiao, Min | Wu, Ben-Lai | Yan, Zhen-Ning | Niu, Yun-Yin^{; *}

Affiliations: College of Chemistry and Molecular Engineering, Zhengzhou University, Henan, P. R. China

Correspondence: [*] Corresponding author: Yun-Yin Niu, College of Chemical and Molecular Engineering, Zhengzhou University, Henan 450052, PR China. E-mail: [email protected].

Abstract: Two new supramolecular polymers based on HgI2, AgI and BPMB·2Br{BLMB = 1, 4-bis [(4-picoline)-N-methylene] benzene} have been synthesized via the self-assembly reaction in solution. They were {(BPMB)[HgI4(H2O)0.66]}(1), and {(BPMB)2[Ag4I8]}(2).We analyzed the structures of compounds 1–2 by X-ray single-crystal diffraction, infrared spectroscopy (IR) and characterized the properties of compounds 1–2 by fluorescence spectrum and ultraviolet-visible (UV-vis) absorption spectrum. The results indicated that compound 1 is the mononuclear structure; Compound 2 has the multinuclear cubane structure. Compounds 1–2 showed good photocatalytic abilities for methylene blue (MB) irradiated by visible light. The effective detection of Fe3+ was performed by compounds 1–2 as fluorescent sensors.

Keywords: Cationic templates, supramolecularpolymer, photocatalytic

DOI: 10.3233/MGC-180666

Journal: Main Group Chemistry, vol. 17, no. 4, pp. 273-283, 2018