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Porphyrin-Ryleneimide Hybrids: Tuning of Visible and Near-Infrared Absorption by Chromophore Desymmetrization.

ABSTRACT: Unsymmetrically fused porphyrins containing one or two naphthalimide subunits were prepared in modular syntheses relying on electron-rich and electron-poor pyrrole building blocks. These new chromophores show progressive changes in their electron-deficient character, while retaining comparably small optical and electrochemical band gaps. The intrinsic curvature and extended optical absorption of these systems make them of interest as mono- and difunctional components of multichromophoric assemblies.

SUBMITTER: Kumar S

PROVIDER: S-EPMC7506948 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature

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Porphyrin-Ryleneimide Hybrids: Tuning of Visible and Near-Infrared Absorption by Chromophore Desymmetrization.

Kumar Sunit S Maurya Yogesh Kumar YK Kang Seongsoo S Chmielewski Piotr P Lis Tadeusz T Cybińska Joanna J Kim Dongho D Stępień Marcin M

Organic letters 20200828 18

Unsymmetrically fused porphyrins containing one or two naphthalimide subunits were prepared in modular syntheses relying on electron-rich and electron-poor pyrrole building blocks. These new chromophores show progressive changes in their electron-deficient character, while retaining comparably small optical and electrochemical band gaps. The intrinsic curvature and extended optical absorption of these systems make them of interest as mono- and difunctional components of multichromophoric assembl ...[more]

PMID: 32857521

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