Das Angshuman, Ghosh Saikat, George Subi J
New Chemistry Unit and School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India.
Angew Chem Int Ed Engl. 2023 Sep 18;62(38):e202308281. doi: 10.1002/anie.202308281. Epub 2023 Aug 10.
Efficient circularly polarized luminescence (CPL) from purely organic molecules holds great promise for applications in displays, sensing, and bioimaging. However, achieving high dissymmetry values (g ) from organic chromophores remains a significant challenge. Herein, we present a bioinspired approach using adenosine triphosphate (ATP)-triggered supramolecular polymerization of a naphthalene diimide-derived monomer (ANSG) to induce CPL with a remarkable g value of 1.1×10 . The ANSG molecules undergo a templated, chiral self-assembly through a cooperative growth mechanism in the presence of ATP, resulting in scrolled nanotubes with aggregation-induced enhanced emission (AIEE) and induced CPL. Furthermore, we demonstrate the concept of chiroptical amplification of induced CPL by efficiently amplifying asymmetry using a mixture of chiral ATP and achiral pyrophosphate. This innovative approach opens numerous opportunities in the emerging field of circularly polarized luminescence.
纯有机分子产生的高效圆偏振发光(CPL)在显示、传感和生物成像等应用中具有巨大潜力。然而,从有机发色团获得高不对称值(g)仍然是一项重大挑战。在此,我们提出一种受生物启发的方法,利用三磷酸腺苷(ATP)触发萘二酰亚胺衍生单体(ANSG)的超分子聚合,以诱导产生g值高达1.1×10的显著圆偏振发光。在ATP存在下,ANSG分子通过协同生长机制进行模板化的手性自组装,形成具有聚集诱导增强发射(AIEE)和诱导圆偏振发光的卷曲纳米管。此外,我们通过使用手性ATP和非手性焦磷酸的混合物有效放大不对称性,证明了诱导圆偏振发光的手性光学放大概念。这种创新方法在圆偏振发光这一新兴领域开辟了众多机会。