Electronic structure and circular dichroism spectroscopy of naphthalenediimide nanotubes

文献信息

发布日期 2009-05-15
DOI 10.1039/B905187B
影响因子 3.676
作者

Benjamin M. Bulheller, G. Dan Pantoş, Jeremy K. M. Sanders, Jonathan D. Hirst


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摘要

Amino acid derivatives of naphthalenediimide (NDI) form non-covalent polymers, which assemble into helical nanotubes through hydrogen bonding. The two enantiomers possess distinct circular dichroism (CD) spectra, but the bands could not be entirely ascribed to the effects of the monomer or a supramolecular structure. We calculate the CD of oligomers, using the (exciton) matrix method, based on ab initio results for the monomer. Several features in the experimental spectrum could be reproduced well and allow assignment of the electronic states of the oligomeric structure. The calculations provide evidence that the oligomer structures in the solid state and the solution phase are equivalent. The calculated spectra show a dependence on the oligomer length, which potentially could be exploited for the experimental characterization of the length of the helical nanotubes.

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来源期刊

Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
自引率: 10.3%
年发文量: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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