From Hetero- to Homochiral Bis(metallahelicene)s Based on a PtIII-PtIII Bonded Scaffold: Isomerization, Structure, and Chiroptical Properties

被引：70

作者：

Anger, Emmanuel ^{[2
]}

Rudolph, Mark ^{[1
]}

Shen, Chengshuo ^{[2
]}

Vanthuyne, Nicolas ^{[3
]}

Toupet, Loic ^{[2
]}

Roussel, Christian ^{[3
]}

Autschbach, Jochen ^{[1
]}

Crassous, Jeanne ^{[2
]}

Reau, Regis ^{[2
]}

机构：

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

[2] Univ Rennes 1, CNRS, Inst Phys Rennes, UMR 6226,UMR 6251, F-35042 Rennes, France

[3] Univ Paul Cezanne, ISM2, Chirosci UMR 6263, F-13397 Marseille 20, France

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2011年 / 133卷 / 11期

基金：

美国国家科学基金会;

关键词：

ASYMMETRIC-SYNTHESIS; COMPLEXES; HELICENES; MOLECULES; ROUTE; PLATINUM(III); DERIVATIVES; RESOLUTION; OXIDATION; LIGANDS;

D O I：

10.1021/ja200129y

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Hetero- and homochiral diastereomeric bis(metallahelicene)s have been synthesized. They possess a rare Pt-III-Pt-III scaffold bridged by benzoato ligands. It is shown that heterochiral (P,M)-bis(Pt-III-[6]helicene) can isomerize into the homochiral (P,P)- and (M,M)-bis-(Pt-III-[6]helicene). A theoretical study shows a unique sigma-pi conjugation between the two pi-helices and the sigma-Pt-III-Pt-III scaffold that impacts the strong chiroptical properties.

引用

页码：3800 / 3803

页数：4