Outstanding Multi‐Photon Absorption at π‐Delocalizable Metallodendrimers

Abstract: Multi‐photon absorption (MPA) has attracted interest for applications exploiting the tight spatial control of interaction volume and long wavelength excitation. However, a deficiency of molecules exhibiting higher‐order nPA (n‐photon absorption, n>2) and a lack of structure–property studies to define the key structural characteristics needed to optimize higher‐order MPA performance have hindered practical development. We herein report the syntheses of second‐ and third‐generation metallodendrimers and assessment of their nonlinear absorption, together with those of zero‐ and first‐generation analogues. We report the first 5PA and 6PA data for an organometallic. The largest dendrimer exhibits exceptional three‐, four‐, five‐ and six‐photon absorption to femtosecond‐pulsed light. The systematically varied compounds highlight the crucial role of metal‐to‐oligo (phenyleneethynylene) charge transfer in promoting outstanding MPA activity.

Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Englisch

Bibliographic citation
Outstanding Multi‐Photon Absorption at π‐Delocalizable Metallodendrimers ; day:20 ; month:01 ; year:2022 ; extent:1
Angewandte Chemie ; (20.01.2022) (gesamt 1)

Creator
Zhang, Ling
Morshedi, Mahbod
Humphrey, Mark

DOI
10.1002/ange.202116181
URN
urn:nbn:de:101:1-2022012114141916002823
Rights
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
15.08.2025, 7:38 AM CEST

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