High quantum efficiency Nd3＋ f luorescent organic complex has a wide range of applications.A novel Nd3＋ organic complex was synthesized,with pentafluoropropionic acid(hav ing no C-H) as the first ligand and 2-amino-3-chloro-5-(trifluoromethyl) pyrid ine (with only four C-H bonds) as the second ligand.The structure of the complex is characterized by ultraviolet ( UV) spectra,Fourier transform infrared (FT-IR) spectra and ¹H nuclear magneti c resonance (NMR).The solution of complex dissolved in DMSO-d_6was prep ared.Ultraviolet visible near infrared (UV-VIS-NIR) spectrum,emission spectru m and fluorescence decay curves of the so lution are tested,and Judd-Ofelt (J-O) analysis is carried out.Smaller Ω₂(1.083×10－20 cm²) ind icates that the coordinating between fluorescent rare earth ions and the innermost ligand is ionic.The measured fluorescent lifetime is ab out 8.3μs.With the theoretical lifetime of τ_r＝541μs,the fluorescent q uan tum efficiency is evaluated to be about 1.53%.The stimulated emission cross-section of Nd³⁺ at 1064nm i s about 2.696×10－20 cm².Compared with the previous similar Nd³⁺ organic systems,this complex has longer fluorescence lifetime,higher quantum efficiency and larger stimulated emission cross-section,which is as good as so me reported ionrganic materials.This complex will be a promising material for li quid laser application.