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金属卟啉由于有超常的配位化学、光电转换及电子传递特性.并且它的结构特征与生物体模型密切相关,因此引起化学家和物理学家浓厚的兴趣.Mn(Ⅲ)卟啉和四价铁卟啉是等电子体,后者又是各种血红蛋白催化的重要中间体,透彻认识Mn(Ⅲ)卟啉电子结构、光电性质和电子行为,对于揭示自然界光合作用、光催化过程都是非常有价值的.由于Mn(Ⅲ)离子有较特殊的电子构型,因此,在光谱响应上除了通常卟啉所表现的Q带和Soret带以外,还出现几个复杂的吸收带,目前,对此还没给出明确的认证,明确指认这些谱带对于了解卟啉光催化机理和电荷转移过程是极其重要的.本文利用表面光电压谱(SPS)和电场诱导下表面光电压谱(EFISPS)方法对二乙胺基尾式卟啉锰(Ⅲ)(MDBPTPPMn(Ⅲ)Cl)光生电荷行为进行了研究,并对其能带进行了认证.
Metalloporphyrins are of great interest to chemists and physicists because of their extraordinary coordination chemistry, photoelectric conversion and electron transfer properties, and their structural features are closely related to their biological models. The ferrous porphyrin is an ison electron, which is also an important intermediate catalyzed by various hemoglobin. It is of great value to understand the electronic structure, optoelectronic properties and electronic behavior of Mn (Ⅲ) porphyrin. To reveal the photosynthesis in nature, the photocatalytic process is Very valuable.As the Mn (Ⅲ) ion has a more specific electronic configuration, there are several complex absorption bands in the spectral response besides the Q bands and Soret bands which are usually represented by porphyrin. At present, To this end, no clear certification has been given, and it is extremely important to identify these bands clearly for understanding the mechanism of photocatalysis and charge transfer of porphyrin.In this paper, surface photovoltage spectroscopy (SPS) and electric field induced surface photovoltage spectroscopy (EFISPS) The photodissociation behavior of diethylamino-terminated porphyrin manganese (Ⅲ) (MDBPTPPMn (Ⅲ) Cl) was studied and its band was certified.