Neutral mononuclear Cu(I) complexes based on 2,2′-dipyridylamine (dpa), formulated as [Cu(dpa)X(PPh₃)] (X = Cl (A4), Br (A5), I (A6)), monocationic mononuclear Cu(I) complexes with counterion BF₄⁻, i.e. [Cu(dpa)(PPh₃)₂](BF₄) (A1), Cu(dpa)(DPEphos)(BF₄) (A2) and [Cu(dpa)(Binap)](BF₄) (A3), where DPEphos = bis [2-(diphenylphosphino) phenyl] ether, Binap = 2,2′-bis(diphenylphosphino)-1,1′-binaphthyl, have been prepared and characterized by ¹H NMR, mass spectroscopy and single-crystal X-ray analyses. Their photophysical properties in both CH₂Cl₂ solution and PMMA (poly(methyl methacrylate)) film have been investigated. All the complexes display a typical metal-to-ligand charge transfer absorption band in the region of 350–400 nm, and a broad and featureless luminescence at room temperature. Specifically, their emission maxima vary from 494 to 562 nm in the PMMA films due to the different electronic characteristics of the auxiliary ligands. Additionally, the thermogravimetric analysis shows that those complexes chelated with diphosphine ligands have a higher thermal stability than those with triphenylphosphine or halides ligands.

基于2,2'-联吡啶胺（dpa）的中性单核Cu（I）配合物，配制成[Cu（dpa）X（PPh ₃）]（X  = Cl（A4），Br（A5），I（A6） ，单阳离子单核的Cu（I）配合物的抗衡离子的BF ₄ ^- ，即[铜（DPA）（PPH ₃）₂ ]（BF ₄）（A1），铜（DPA）（DPEphos）（BF ₄）（A2）和[ Cu（dpa）（Binap）]（BF ₄）（A3），其中DPEphos =双[2-（二苯基膦基）苯基]醚，Binap = 2,2'-双（二苯基膦基）-1,1'-联萘基准备好并以^1为特征1 H NMR，质谱和单晶X射线分析。研究了它们在CH ₂ Cl ₂溶液和PMMA（聚（甲基丙烯酸甲酯））薄膜中的光物理性质。所有的配合物在350-400 nm范围内均显示出典型的金属-配体电荷转移吸收带，并且在室温下具有宽广且无特征的发光。具体地，由于辅助配体的不同电子特性，在PMMA膜中它们的发射最大值在494nm至562nm之间变化。另外，热重分析表明，与二膦配体螯合的那些配合物比与三苯基膦或卤化物配体的那些具有更高的热稳定性。