非对映选择性Scholl反应：分子纳米石墨烯中的点-螺旋手性转移

IF 7.6 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Chemical Science Pub Date : 2025-06-09 DOI:10.1039/d5sc02563j

Sergio Marcos López, Manuel Buendía, Israel Fernández, Salvatore Filippone, Nazario Martín

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引用次数: 0

摘要

在Scholl石墨化反应过程中，通过点-螺旋手性转移实现了分子纳米石墨烯螺旋度的立体选择性控制，得到了化合物4。密度泛函理论计算表明，该过程的完全非均匀选择性主要发生在动力学控制下。两种对映体的圆二色性和圆偏振发光研究显示出预期的镜像，在470 nm处测定的不对称因子（glum）值为1,0 × 10−3，圆偏振发光亮度显著（BCPL = 4,9 M-1cm-1）。

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Diastereoselective Scholl reaction: Point-to-helical chirality transfer in molecular nanographenes

A stereoselective control of molecular nanographene helicity has been achieved by a point-to-helical chirality transfer during the Scholl graphitization reaction to obtain compound 4. Density Functional Theory calculations indicate that the complete diasteroselectivity of the process takes place mainly under kinetic control. Circular dichroism and circularly polarised luminescence studies of both enantiomers show the expected mirror images, with a dissymmetry factor (g_lum) value determined at 470 nm of 1,0 × 10⁻³ and a remarkable circularly polarized luminescence brightness (B_CPL = 4,9 M^-1cm^-1).

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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.