高能量密度的二氢偶氮嘌呤二联体和三联体用于分子太阳能热能储存

IF 7.6 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Chemical Science Pub Date : 2025-07-25 DOI:10.1039/d5sc03159a

Sonja M. Biebl, Robert C. Richter, Markus Ströbele, Ivana Fleischer, Holger F. Bettinger

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引用次数: 0

摘要

1,2-二氢-1,2-氮杂核糖（BN苯）与杜瓦异构体（2-氮杂-3-硼比环[2.2.0]己-5-烯）的可逆光异构化为分子太阳能热（MOST）能量转换、储存和释放提供了一个有前途的平台。我们研究了如何通过将多个二氢偶氮嘌呤单元捆绑到单个分子中来优化能量密度，并探索了这些单元的连通性如何改变性质。获得了高达644 kJ mol−1的高摩尔能量密度，并且存储态的半衰期显著缩短，按正极>；元比;帕拉。此外，吸收从母体1,2-二氢-1,2-氮杂嘌呤的UV-C区转移到UV-A区。所研究的二联体和三联体符合理想的分子太阳能储热材料的几个标准。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

High energy density dihydroazaborinine dyads and triad for molecular solar thermal energy storage

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High energy density dihydroazaborinine dyads and triad for molecular solar thermal energy storage

The reversible photoisomerization of 1,2-dihydro-1,2-azaborinines (BN benzenes) to their Dewar isomers (2-aza-3-borabicyclo[2.2.0]hex-5-enes) provides a promising platform for molecular solar thermal (MOST) energy conversion, storage, and release. We examine how energy density can be optimized by bundling multiple dihydroazaborinine units into a single molecule and explore how properties change depending on the connectivity of these units. Remarkably high molar energy densities of up to 644 kJ mol⁻¹ were obtained, as well as a significant decrease in the half-life of the storage state in the order of ortho > meta > para. Moreover, the absorption is shifted from the UV-C of the parent 1,2-dihydro-1,2-azaborinine into the UV-A region. The investigated dyads and triades meet several criteria for an ideal molecular solar thermal storage material.

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来源期刊

Chemical Science CHEMISTRY, MULTIDISCIPLINARY-

CiteScore

14.40

自引率

4.80%

发文量

1352

审稿时长

2.1 months

期刊介绍： Chemical Science is a journal that encompasses various disciplines within the chemical sciences. Its scope includes publishing ground-breaking research with significant implications for its respective field, as well as appealing to a wider audience in related areas. To be considered for publication, articles must showcase innovative and original advances in their field of study and be presented in a manner that is understandable to scientists from diverse backgrounds. However, the journal generally does not publish highly specialized research.