Neo-Porphyrinoids: New Members of the Porphyrinoid Family

IF 8.6 2区 化学 Q1 Chemistry Topics in Current Chemistry Pub Date : 2021-05-19 DOI:10.1007/s41061-021-00338-6
Poornenth Pushpanandan, Mangalampalli Ravikanth
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引用次数: 13

Abstract

The four pyrrole rings and four meso carbons of tetrapyrrolic porphyrins can be arranged in different ways and the resulting porphyrin isomers exhibit very distinct electronic properties. The extensive research carried out on the porphyrins over the years has revealed that porphyrin can have several possible isomers and some of these have been identified and synthesized. Among the porphyrin isomers synthesized so far, porphycene and N-confused porphyrins have been investigated extensively whereas the other porphyrin isomers such as hemiporphycene, corrphycene and isoporphycene remain underdeveloped because of synthetic difficulties and their inherently unstable nature. Neoporphyrinoids are new members of the porphyrinoid family that were discovered serendipitously in 2011. Neoporphyrinoids are structural analogues of porphyrinoids with a confused pyrrole nitrogen linked to a meso carbon or the adjacent pyrrole carbon. Thus, neoporphyrinoids have an unusual structure in which pyrrole N is a part of a porphyrinoid framework and the lone pair of electrons on nitrogen participate in macrocyclic conjugation. It's been a decade since the discovery and different types of neoporphyrinoids, including regular, contracted and expanded neoporphyrinoids, have been synthesized by rational synthetic methodologies and their spectral, structural, aromatic and coordination properties have been studied. There is huge scope to develop different synthetic routes to produce new types of stable neoporphyrinoids to study their properties and potential applications. This article presents a brief overview of the synthesis, structure and properties of the neoporphyrinoids reported in this decade.

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新卟啉类:卟啉类家族的新成员
四吡啶卟啉的四个吡咯环和四个介碳可以以不同的方式排列,所得到的卟啉异构体具有非常不同的电子性质。多年来对卟啉进行的广泛研究表明,卟啉可以有几种可能的异构体,其中一些已经被识别和合成。在目前已合成的卟啉异构体中,卟啉和n -络合卟啉得到了广泛的研究,而其他卟啉异构体如半卟啉、卟啉和异卟啉由于合成困难和其固有的不稳定性而尚未开发。新卟啉是卟啉家族的新成员,于2011年偶然发现。新卟啉类化合物是卟啉类化合物的结构类似物,它与中间碳或相邻的吡咯碳相连。因此,新卟啉类化合物具有一种不寻常的结构,其中吡咯N是卟啉类化合物框架的一部分,氮上的孤对电子参与大环共轭。新卟啉类化合物的发现距今已有十年,人们通过合理的合成方法合成了规则型、收缩型和膨胀型等不同类型的新卟啉类化合物,并对它们的光谱、结构、芳香和配位性质进行了研究。开发不同的合成路线来生产新型稳定的新型卟啉类化合物,研究其性质和潜在的应用前景广阔。本文综述了近十年来报道的新型卟啉类化合物的合成、结构和性质。
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来源期刊
Topics in Current Chemistry
Topics in Current Chemistry 化学-化学综合
CiteScore
11.70
自引率
1.20%
发文量
0
审稿时长
6-12 weeks
期刊介绍: Topics in Current Chemistry provides in-depth analyses and forward-thinking perspectives on the latest advancements in chemical research. This renowned journal encompasses various domains within chemical science and their intersections with biology, medicine, physics, and materials science. Each collection within the journal aims to offer a comprehensive understanding, accessible to both academic and industrial readers, of emerging research in an area that captivates a broader scientific community. In essence, Topics in Current Chemistry illuminates cutting-edge chemical research, fosters interdisciplinary collaboration, and facilitates knowledge-sharing among diverse scientific audiences.
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