Crystal Structure and Sensitive Response toward Al^3＋ of the Furaldehyde Schiff Base  

作　　者：朱瑞涛 薛华 郭爱玲 史清华 董金龙 

机构地区：[1]Department of Chemistry, Taiyuan Normal University [2]School of Chinese Material Medica,Shanxi Universit of Chinese Medicine

出　　处：《Chinese Journal of Structural Chemistry》2018年第6期915-923,共9页结构化学（英文）

基　　金：supported by Teaching Reform Innovation Program of Higher Education Institutions in Shanxi(Nos.J2016090 and J2017092);Soft Science Project of Shanxi Province(No.2016042008-1)

摘　　要：A furaldehyde Schiff base, 4-[（2-furanylmethylene）amino]phenol（FMAP）, was synthesized and fully characterized by elemental analysis, ^1H-NMR, IR, MS, UV-Vis, fluorescence and single-crystal X-ray diffraction. It crystallizes in the monoclinic system, space group P2_1/n with a = 6.2566（6）, b = 13.2273（11）, c = 11.3056（9） A, β = 93.1800（10）o, V = 934.19（14） A^3, Z = 4, M_r = 187.19, D_c = 1.331 g/cm^3, λ = 0.71073 a, F（000） = 392, GOOF = 1.022, R = 0.0396 and wR = 0.0992 for 4569 observed reflections with I 〉 2σ（I）. Fluorescent spectroscopic investigation revealed that the Schiff base exhibited a high selectivity and sensitivity toward Al^3＋ over other common metal ions in ethanol solution, and the detection limit of Al^3＋ is up to 1.2 × 10^-7 M. The mass spectra and Job＇s plot analysis confirm the 1：1 stoichiometry between FMAP and Al^3＋.A furaldehyde Schiff base, 4-[（2-furanylmethylene）amino]phenol（FMAP）, was synthesized and fully characterized by elemental analysis, ^1H-NMR, IR, MS, UV-Vis, fluorescence and single-crystal X-ray diffraction. It crystallizes in the monoclinic system, space group P2_1/n with a = 6.2566（6）, b = 13.2273（11）, c = 11.3056（9） A, β = 93.1800（10）o, V = 934.19（14） A^3, Z = 4, M_r = 187.19, D_c = 1.331 g/cm^3, λ = 0.71073 a, F（000） = 392, GOOF = 1.022, R = 0.0396 and wR = 0.0992 for 4569 observed reflections with I 〉 2σ（I）. Fluorescent spectroscopic investigation revealed that the Schiff base exhibited a high selectivity and sensitivity toward Al^3＋ over other common metal ions in ethanol solution, and the detection limit of Al^3＋ is up to 1.2 × 10^-7 M. The mass spectra and Job＇s plot analysis confirm the 1：1 stoichiometry between FMAP and Al^3＋.

关 键 词：Schiff base FURALDEHYDE crystal structure fluorescence spectrum Al^3＋ 

分 类 号：O641.4[理学—物理化学]