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研究了Ｃｕ（Ⅱ）与部分二肽：甘氨酸甘氨酸（ＧｌｙＧｌｙ）．甘氨酸苏氨酸（Ｇｌｙ－Ｔｈｒ），甘氨酸苯丙氨酸（ＧｌｒＰｈｅ），甘氨酸酪氨酸（ＧｌｙＴｙｒ）的络合物在不同ｐＨ下的７７ Ｋ和室温（２９８Ｋ）的ＥＰＲ谱。发现Ｃｕ（Ⅱ）与含芳香氨基酸残基和不含芳香氨基酸残基的二肽络合物的ＥＰＲ 谱有明显的差别．不同ｐＨ下的ＥＰＲ谱亦有变化．在Ｃｕ（ Ⅱ）－ＧｌｙＧｌｙ和 Ｃｕ（ Ⅱ）－ＧｌｒＴｙｒ中，其室温 ＥＰＲ谱出现了五条氮核的超超精细裂分线，但在 Ｃｕ（Ⅱ）－ＧｌｙＧｌｙ和 Ｃｕ（Ⅱ）－ＧｌｙＴｈｒ的 ＥＰＲ谱中没有出现。分可见苯环侧链对络合物ＥＰＲ谱中氮的超越精细结构的出现起重要作用。
Cu (Ⅱ) and some dipeptide glycine glycine (GlyGly) were studied. EPR spectra of glycine-threonine (Gly-Thr), glycine-tyrosine (GlyTyr) complexes at 77 K and room temperature (298 K) at different pHs. The EPR spectra of Cu (Ⅱ) with dipeptide complexes containing aromatic amino acid residues and aromatic amino acid residues were found to be significantly different. EPR spectra also vary at different pHs. In EPR spectra of Cu (Ⅱ) -GlyGly and Cu (Ⅱ) -GlrTyr, ultrafine cleavage lines of five nitrogen nuclei appear at room temperature. However, in EPR of Cu (Ⅱ) -GlyGly and Cu The spectrum did not appear. It can be seen that the benzene ring side chain plays an important role in the appearance of nitrogen beyond the fine structure in the EPR spectrum of the complex.