Iron Alkynyl Helicenes: Redox-Triggered Chiroptical Tuning in the IR and Near-IR Spectral Regions and Suitable for Telecommunications Applications

被引：65

作者：

Shen, Chengshuo ^{[1
]}

Loas, Goulc'hen ^{[1
]}

Srebro-Hooper, Monika ^{[2
]}

Vanthuyne, Nicolas ^{[3
]}

Toupet, Loic ^{[1
]}

Cador, Olivier ^{[1
]}

Paul, Frederic ^{[1
]}

Lopez Navarrete, Juan T. ^{[4
]}

Ramirez, Francisco J. ^{[4
]}

Nieto-Ortega, Belen ^{[4
]}

Casado, Juan ^{[4
]}

Autschbach, Jochen ^{[5
]}

Vallet, Marc ^{[1
]}

Crassous, Jeanne ^{[1
]}

机构：

[1] Univ Rennes 1, Inst Phys Rennes, CNRS, Inst Sci Chim Rennes,UMR 6226,UMR 6251, Campus Beaulieu, F-35042 Rennes, France

[2] Jagiellonian Univ, Fac Chem, R Ingardena 3, PL-30060 Krakow, Poland

[3] Aix Marseille Univ, Cent Marseille, CNRS, ISm2,UMR 7313, F-13397 Marseille, France

[4] Univ Malaga, Dept Phys Chem, Campus Teatinos S-N, E-29071 Malaga, Spain

[5] SUNY Buffalo, Dept Chem, Buffalo, NY 14260 USA

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2016年 / 55卷 / 28期

基金：

美国国家科学基金会;

关键词：

circular dichroism; helicenes; iron; optical rotation; Raman optical activity; NONLINEAR-OPTICAL PROPERTIES; VIBRATIONAL CIRCULAR-DICHROISM; ABSOLUTE-CONFIGURATION; TRANSITION-METAL; COMPLEXES; RAMAN; ENHANCEMENT; IMPLEMENTATION; MOLECULES; VCD;

D O I：

10.1002/anie.201601633

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The combination of a bis-alkynyl-helicene moiety with two iron centers leads to novel electroactive species displaying unprecedented redox-triggered chiroptical switching. Upon oxidation, strong changes of vibrational modes (either local or extended coupled modes) are detected by vibrational circular dichroism and Raman optical activity. Remarkably, the sign of the optical rotation at 1.54 mm (that is, at wavelengths typically used for telecommunications) changes upon oxidation while the topology and stereochemistry of the helicene remain unchanged.

引用

页码：8062 / 8066

页数：5

共 15 条

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