Two-Photon-Triggered NO Release via a Ruthenium-Nitrosyl Complex with a Star-Shaped Architecture

Margarita Romero Ávila, Andrés Felipe León-Rojas, Pascal G. Lacroix, Isabelle Malfant, Norberto Farfán, Rana Mhanna, Rosa Santillan, Gabriel Ramos-Ortiz, Jean Pierre Malval

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We report herein a molecular engineering strategy based on the design of a multipolar ruthenium-nitrosyl (Ru-NO) complex with a three-branched architecture. The three Ru-NO units are introduced at the periphery of a highly I-delocalized truxene core bearing three terpyridine ligands. The two-photon absorption capabilities of the complex were investigated by the Z-scan technique. The strong electronic coupling among the individual arms gives rise to a very strong two-photon absorption response (I800 nm ∼1600 GM), which corresponds to a 16-fold enhancement of the capability of a single-Arm reference, thereby promoting an efficient light-driven NO release process in aqueous media.

Original languageEnglish
Pages (from-to)6487-6491
Number of pages5
JournalJournal of Physical Chemistry Letters
Issue number16
Publication statusPublished - 20 Aug 2020
Externally publishedYes

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