A Tunable, Fullerene-Based Molecular Amplifier for Vibrational Circular Dichroism

被引：5

作者：

Strudwick, Benjamin H. ^{[1
]}

Koenis, Mark A. J. ^{[1
]}

Sanders, Hans J. ^{[1
]}

Nicu, Valentin P. ^{[2
]}

Woutersen, Sander ^{[1
]}

Buma, Wybren Jan ^{[1
]}

机构：

[1] Univ Amsterdam, Mol Photon Grp, Vant Hoff Inst Mol Sci, Sci Pk 904, NL-1098 XH Amsterdam, Netherlands

[2] Lucian Blaga Univ Sibiu, Dept Environm Sci Phys Phys Educ & Sport, Ioan Ratiu St 7-9, Sibiu 550012, Romania

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2019年 / 25卷 / 54期

关键词：

chirality; density functional calculations; fullerenes; spectroelectrochemistry; vibrational circular dichroism; DENSITY-FUNCTIONAL THEORY; ELECTROCHEMICAL DETECTION; SUPRAMOLECULAR CHIRALITY; OPTICAL-ACTIVITY; PROBE; CONFORMATION; ABSORPTION; SPECTRA; EPR;

D O I：

10.1002/chem.201902190

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Vibrational circular dichroism (VCD) studies are reported on a chiral compound in which a fullerene C-60 moiety is used as an electron acceptor and local VCD amplifier for an alanine-based peptide chain. Four redox states are investigated in this study, of which three are reduced species that possess low-lying electronic states as confirmed by UV/Vis spectroelectrochemistry. VCD measurements in combination with (TD)DFT calculations are used to investigate (i) how the low-lying electronic states of the reduced species modulate the amplification of VCD signals, (ii) how this amplification depends on the distance between oscillator and amplifier, and (iii) how the spatial extent of the amplifier influences amplification. These results pave the way for further development of tailored molecular VCD amplifiers.

引用

页码：12560 / 12566

页数：7

共 50 条

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