Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 133, Issue 11, Pages 3800-3803Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja200129y
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Funding
- Ministere de l'Education Nationale, de la Recherche et de la Technologie
- Centre National de la Recherche Scientifique (CNRS)
- Agence Nationale de la Recherche (ANR) [PHOSHELIX-137104]
- National Science Foundation [CHE 0447321, 0952253]
- Division Of Chemistry
- Direct For Mathematical & Physical Scien [0952253] Funding Source: National Science Foundation
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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.
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