The neighboring effect of two adjacent heteroatoms influences the structures and properties of heterocyclic compounds. Herein, we demonstrated that the introduction of two adjacent sp² nitrogen atoms into a porphyrinic skeleton significantly enhanced its Brønsted basicity due to the repulsive interaction between two lone pairs on the nitrogen atoms. Palladium‐ and copper‐templated ring closure of dichlorobis(dipyrrin) with hydrazine hydrate provided meso‐diazacorrphycene palladium and copper complexes in good yields. The structural, magnetic, and electrochemical properties of the diazacorrphycene complexes were investigated experimentally and theoretically to elucidate the effect of the meso‐nitrogen atoms.

中文翻译：

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中观重氮藻类：两个氮原子的邻近效应。

两个相邻杂原子的相邻效应影响杂环化合物的结构和性质。在本文中，我们证明了将两个相邻的sp ²氮原子引入卟啉骨架，由于氮原子上两个孤对之间的排斥相互作用，大大提高了其布朗斯台德碱度。钯和铜为模板的二氯双（dipyrrin）与水合肼的闭环反应提供了中等收率的二氮杂茂茂钯和铜络合物。所述diazacorrphycene复合物的结构，磁性，和电化学性质进行了实验和理论研究阐明的效果消旋-氮原子。