Further studies on the photoreactivities of ruthenium–nitrosyl complexes with terpyridyl ligands

Sasaki, Isabelle; Amabilino, Silvia; Mallet‐Ladeira, Sonia; Tassé, Marine; Sournia‐Saquet, Alix; Lacroix, Pascal G.; Malfant, Isabelle

doi:10.1039/c9nj02398d

Cited by 20 publications

(21 citation statements)

References 53 publications

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“…However, irradiation of these complexes in the charge-transfer absorption band revealed only minor differences in the quantum yield of NO release, indicating that the CT band is not the sole determinant of NO release efficiency and that other factors must be involved. Malfant and co-workers further extended the study of terpyridine Ru II complexes by examining derivatives 349 ( Table 20 ), 1298 which released NO upon green-light irradiation. Similar complexes were used by Liu and co-workers to create NO-releasing Ru II nitrosyl-containing nanoplatforms bearing BODIPY ( 350 ) 1299 or naphthalimide ( 351 ) ligands.…”

Section: Photorelease Of Gasotransmittersmentioning

confidence: 99%

Visible-to-NIR-Light Activated Release: From Small Molecules to Nanomaterials

et al. 2020

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Photoactivatable (alternatively, photoremovable, photoreleasable, or photocleavable) protecting groups (PPGs), also known as caged or photocaged compounds, are used to enable non-invasive spatiotemporal photochemical control over the release of species of interest. Recent years have seen the development of PPGs activatable by biologically and chemically benign visible and near-infrared (NIR) light. These long-wavelength-absorbing moieties expand the applicability of this powerful method and its accessibility to non-specialist users. This review comprehensively covers organic and transition metal-containing photoactivatable compounds (complexes) that absorb in the visible- and NIR-range to release various leaving groups and gasotransmitters (carbon monoxide, nitric oxide, and hydrogen sulfide). The text also covers visible- and NIR-light-induced photosensitized release using molecular sensitizers, quantum dots, and upconversion and second-harmonic nanoparticles, as well as release via photodynamic (photooxygenation by singlet oxygen) and photothermal effects. Release from photoactivatable polymers, micelles, vesicles, and photoswitches, along with the related emerging field of photopharmacology, is discussed at the end of the review.

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Section: Photorelease Of Gasotransmittersmentioning

confidence: 99%

Visible-to-NIR-Light Activated Release: From Small Molecules to Nanomaterials

et al. 2020

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“…16a, 17,36 Interestingly, the case of complexes 5, where the hydroxo ligand is replaced by an ethanolato ligand, appears different. Contrary to the situation encountered with OH ligand, the p orbital of the oxygen atom of OEt (orbital 117 (HOMO) in 5a and orbital 117 (HOMO-1) in 5b) is involved in the charge transfer.…”

Section: Uv-visible Spectroscopymentioning

confidence: 99%

Chemical and photochemical behavior of ruthenium nitrosyl complexes with terpyridine ligands in aqueous media

et al. 2020

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“…[73][74][75] By computing the relaxation pathways of ESs, the photochemistry of transition metal nitrosyls may be rationalized. [76][77][78] As a challenging example, García recently presented the optimization of the bright S 9 of RuNO (see Figure 1c) using NTO overlaps. [14] Similar to the Cy example, we investigate the performance of pysisyphus in the scope of ES optimizations in the singlet manifold.…”

Section: Ruthenium Nitrosyl Complexmentioning

confidence: 99%

“…[ 73–75 ] By computing the relaxation pathways of ESs, the photochemistry of transition metal nitrosyls may be rationalized. [ 76–78 ]…”

Section: Excited State Optimizationmentioning

confidence: 99%

pysisyphus: Exploring potential energy surfaces in ground and excited states

Steinmetzer

Kupfer

Gräfe

2020

Int J of Quantum Chemistry

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Predicting the energetics of chemical transformations requires localizing stationary points on a potential energy surface. While educts and products of a chemical reaction may be known, transition state optimization is challenging as good guesses may be unavailable. Extending stationary point searches to the excited state leads to additional difficulties as several states may be close in energy, requiring efficient state tracking. Here, we report the implementation of pysisyphus, an external optimizer, that allows localization of stationary points not only in the ground state but also for excited state by providing several state-tracking algorithms. pysisyphus offers all necessary tools for calculating reaction paths, starting from the optimization of the reactants, running chain-of-states methods such as the nudged elastic band or the growing string method with subsequent transition state optimization, and a concluding intrinsic reaction coordinate calculation.

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Further studies on the photoreactivities of ruthenium–nitrosyl complexes with terpyridyl ligands

Abstract: Exposure of the ruthenium terpyridyl complex to NO gas leads to the ruthenium–NO complex with nitrosation of the ligand.

Cited by 20 publications

References 53 publications

Visible-to-NIR-Light Activated Release: From Small Molecules to Nanomaterials

Visible-to-NIR-Light Activated Release: From Small Molecules to Nanomaterials

Chemical and photochemical behavior of ruthenium nitrosyl complexes with terpyridine ligands in aqueous media

pysisyphus: Exploring potential energy surfaces in ground and excited states

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