Department of Inorganic Chemistry, Ivanovo State University of Chemistry and Technology, 153000 Ivanovo, Russia.
Molecules. 2021 Apr 10;26(8):2181. doi: 10.3390/molecules26082181.
Novel bistetrakis-4-[3-(3,4-dicyanophenoxy)phenoxy]phthalocyaninato of complexes erbium, lutetium and ytterbium were synthesized using a template fusion method to prevent any polymerization process. The complexes were separated from the reaction mixtures and characterized by NMR, IR and electron absorption spectroscopy. The spectroscopic properties of the metal phthalocyaninates in chloroform, acetone and tetrahydrofuran were studied. The regular bathochromic shift in the Er-Yb-Lu series was determined. In acetone medium all the complexes obtained were found to exist in an equilibrium state between neutral and reduced forms. The linearity of Lambert-Bouger-Beer curves makes it possible to study the kinetics of redox processes in the presence of phenylhydrazine and bromine. The lutetium complex showed better reducing properties and turned fully into the reduced form, while the erbium and ytterbium ones changed only partially. Upon oxidizing all the phthalocyaninates transformed into a mixture of oxidized and neutral-radical forms. The extinction coefficients and effective redox constants were calculated.
采用模板融合法合成了新型双四-[3-(3,4-二氰基苯氧基)苯氧基]酞菁合铒、镥和镱配合物，以防止任何聚合过程。将配合物从反应混合物中分离出来，并通过 NMR、IR 和电子吸收光谱进行表征。研究了金属酞菁在氯仿、丙酮和四氢呋喃中的光谱性质。确定了 Er-Yb-Lu 系列中规则的红移。在丙酮介质中，所有获得的配合物都被发现存在于中性和还原形式之间的平衡状态。朗伯-比尔定律曲线的线性使得有可能在苯肼和溴的存在下研究氧化还原过程的动力学。镥配合物显示出更好的还原性能，完全转化为还原形式，而铒和镱配合物仅部分转化。所有的酞菁在氧化后都转化为氧化和中性自由基形式的混合物。计算了消光系数和有效氧化还原常数。
