The electrochemical properties of a covalently linked conjugate (Dyad) composed of methyl pheophorbide a (Pheoa) and zinc(II) 2-(2-hydroxymethylbenzyloxy)-9(10),16(17),23(24)-tri-tert-butylphthalocyaninate (ZnPc) were studied. Cyclic voltammetry (CV) and square wave voltammetry (SWV) measurements revealed three reductions at -1.59, 1.78 and -2.03 V vs. ${\mathrm{\text{Fc}}}^{+}$/Fc and four oxidations at 0.06, 0.47, 0.57 and 0.87 V vs. ${\mathrm{\text{Fc}}}^{+}$/Fc in $o$-DCB containing 0.05 M TBAPF₆. The first reduction included two overlapped processes, the reduction of Pheoa followed by the reduction of ZnPc, separated byca. 0.08 V. Compared to individual components, the ZnPc subunit in Dyad undergoes the first oxidation more easily with a cathodic shift of potential by 0.08 V, while Pheoa subunit, on the contrary, is more difficult to oxidize showing an anodic potential shift of 0.14 V. This indicates a certain interaction between the two subunits in Dyad, which is additionally confirmed by a slight bathochromic shift of the Q band positions in the UV-vis spectra of Dyad relative to its components. Moreover, the cathodic shift of the second oxidation potential of the ZnPc subunit concerning individual ZnPc reaches 0.35 V, indicating an intensification of the electronic interaction between ${[ZnPc]}^{•+}$ and Pheoa in Dyad. The spectroelectrochemical experiment showed that the reversible first oxidation of the ZnPc subunit is followed by its irreversible second oxidation, which proceeds slightly ahead of the first oxidation of the Pheoa fragment. Thus, both electrochemical and spectroelectrochemical studies support the conclusion on the enhanced interaction between ${\left[ZnPc\right]}^{•+}$ and Pheoa in Dyad, which even leads to a change in the order of their further oxidations.

由甲基脱镁叶绿酸a ( Pheo a ) 和锌(II) 2-(2-羟甲基苄氧基)-9(10),16(17),23(24)-tri-组成的共价连接缀合物 ( Dyad )的电化学特性研究了叔丁基酞菁酸酯（ZnPc ）。循环伏安法 (CV) 和方波伏安法 (SWV) 测量显示，与 . 相比，在 -1.59、1.78 和 -2.03 V 处出现了三次降低。${\mathrm{\text{氟碳}}}^{+}$/Fc 和 0.06、0.47、0.57 和 0.87 V 下的四次氧化vs。${\mathrm{\text{氟碳}}}^{+}$/Fc 输入$哦$-含有0.05M TBAPF ₆的DCB 。第一次还原包括两个重叠的过程，先是Pheo a的还原，然后是ZnPc的还原，中间相隔约10 分钟。0.08 V。与单个组分相比，Dyad中的ZnPc亚基更容易进行第一次氧化，阴极电位移动 0.08 V，而Pheo a亚基则相反，更难氧化，阳极电位移动 0.14 V. 这表明Dyad中的两个亚基之间存在一定的相互作用，这还通过 UV-vis 光谱中 Q 带位置的轻微红移得到了证实相对于其组成部分的二元关系。此外，有关单个 ZnPc 的 ZnPc 亚基的第二氧化电位的阴极位移达到 0.35 V，表明 ZnPc 之间的电子相互作用增强。${[Zn磷C]}^{•+}$和Pheo a在Dyad中。光谱电化学实验表明， ZnPc亚基的可逆第一次氧化之后是其不可逆的第二次氧化，该氧化稍微提前于Pheo a片段的第一次氧化。因此，电化学和光谱电化学研究都支持以下结论：${\left[Zn磷C\right]}^{•+}$和Pheo a在Dyad中，这甚至导致它们进一步氧化的顺序发生变化。