Synthesis, Fluorescence and Dielectric Properties of Two Novel Compounds Based on Triethylenediamine Derivatives

摘要

Two compounds C8H18N2Br3Mn0.5 (1) and C12H26N2Cl4Mn (2) based on triethylenediamine derivatives were synthesized by solution method and were characterized by elemental analysis,infrared spectroscopy,single-crystal X-ray structure analysis,fluorescence test,circular dichroism (CD) analysis and dielectric measurement,respectively.According to single-crystal X-ray determination,compound 1 crystallizes in the cubic system,space group Pa3 with a =b =c =13.7246(5) (A),Z =24,V =2585.2(3) (A)3;and compound 2 crystallizes in the orthorhombic system,space group P212121 with a =7.9716(13),b =15.309(3),c =15.804(3) (A),Z =4 and V=1928.7(6) (A)3.Fluorescent analysis of compound 1 showed an intense emission band at 670 nm when the exciting radiation was set at 378 nm and fluorescent analysis of compound 2 showed an intense emission band at 515 nm when the exciting radiation was set at 363 nm.Dielectric constants of compounds 1 and 2 were measured at different frequencies with temperature variation.