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首页> 外文期刊>RSC Advances >Influence of the heteroatom introduction on the physicochemical properties of 5-heterotruxenes containing nitrogen, oxygen and sulfur atom
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Influence of the heteroatom introduction on the physicochemical properties of 5-heterotruxenes containing nitrogen, oxygen and sulfur atom

机译：杂原子引入对含氮，氧气和硫原子的5-异络琥珀化学性质的影响

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摘要

5-heterotruxenes are a class of heterocyclic aromatic compounds derived from the parent heptacyclic hydrocarbon, namely truxene. Currently, few substances belonging to this group are known. These include derivatives of 5-oxatruxene, 5-azatruxene, and 5-thiatruxene, along with its sulfone and sulfoxide. The introduction of one heteroatom, not only enables selective monofunctionalization of the 5-heterotruxene system but also allows adjustment of physico-chemical properties depending on the needs. Two investigated compounds, namely 5-oxatruxene and 5-azatruxene, exhibit fluorescence enhancement by symmetry breaking (FESB) phenomena, manifested by a fourfold increase in the fluorescence quantum yield. Therefore, derivatives of 5-heterotruxenes may contribute to the development of new stable optoelectronic substances as well as other functional materials. Nevertheless, in the beginning, it is crucial to investigate their spectral, thermal, and electrochemical properties to learn more about the advantages and limitations of these aromatic systems. The following article also presents a new simplified and universal synthetic methodology, without use of anhydrous conditions or organometallic substances, giving easy access to 5-azatruxene and structural-related heteroaromatic systems. The discussed heteroatom influence is not limited to the truxene core but also helps to understand the physicochemical properties of other, currently top-rated high-symmetric heteroaromatic systems such as circulenes, sumanenes and their analogues.
机译：5-异络琥珀是一类衍生自亲本庚基烃的杂环芳族化合物，即蒸碘。目前，属于该组的很少物质是已知的。这些包括5-氧碱，5-氮氧化芳烃和5-亚硫代磺酸的衍生物以及其砜和亚砜。引入一个杂原子，不仅能够选择性为5-杂宁系统的单一官能化，还可以根据需要调节物理化学性质。两种研究的化合物，即5-氧碱和5-氧磺酸，通过对称性破碎（FESB）现象表现出荧光增强，表现为荧光量子产率的四倍增加。因此，5- oferotruxenes的衍生物可能有助于开发新的稳定光电子物质以及其他功能材料。然而，在开始，研究其光谱，热和电化学性质至关重要，以了解这些芳香系统的优缺点。以下文章还提出了一种新的简化和普遍的合成方法，而无需使用无水条件或有机金属物质，易于获得5-氮杂化​​和结构相关的杂芳族体系。所讨论的杂原子的影响不限于葡萄质核心，而且有助于了解其他目前额定高对称杂芳族体系（如循环，Sumanes及其类似物）的物理化学性质。

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