Photoinduced ligand release in a ruthenium(ii)-cobalt(iii) heterodinuclear system

Downward, Alan M.; Moore, Evan G.; Hartshorn, Richard M.

doi:10.1039/c1cc12729b

Cited by 15 publications

(12 citation statements)

References 35 publications

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“…The first reported complex of this type was the Ru II −Co III heterodinuclear species 189 (Figure 29), which has an absorption maximum close to 400 nm. 1054 Upon irradiation with visible light, the Ru II moiety probably transfers an electron to the Co III complex to produce a Co II species with concomitant release of the ethylenediamine ligands. Renfrew and co-workers reported the release of curcumin from Co III curcumin complexes such as 190 (Figure 29, Figure 19).…”

Section: Photochemistry Of Pt- Co- and Fe-containing Organometallic C...mentioning

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: Photochemistry Of Pt- Co- and Fe-containing Organometallic C...mentioning

confidence: 99%

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

et al. 2020

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“…According to the difference between tumour and healthy tissue, Denny and coworkers have reported a series of hypoxia-selective antitumor agents, coordinating cytotoxic mustard compounds to a Co(III) center [7e11]. The cytotoxic nitrogen mustard ligand would become easy to be released after a photo-induced conversion from an inert Co(III) complex to a labile Co(II) complex under the visible light [8,12]. Hartshorn and co-workers have reported the synthesis and NMR spectroscopic analysis on a diversity of heterodinuclear Ru(II)eCo(III) complexes containing such a hypoxiaselective cytotoxic nitrogen mustard ligand [13].…”

Section: Introductionmentioning

confidence: 99%

Theoretical insight into photo-induced intramolecular electron transfer in heterodinuclear Ru(II)–Co(III) complexes

Shao

et al. 2015

Materials Chemistry and Physics

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“…The preparation of functionalized 1,2,4-triazinyl complexants for use in separation science, materials, and pharmaceuticals is wide and varied. This laboratory has been working on the design, synthesis, and evaluation of soft-Lewis basic nitrogen donor complexants for chemoselective minor-actinide separation of Am 3+ over lanthanides in spent nuclear fuel .…”

Section: Introductionmentioning

confidence: 99%

Modular Approaches to Diversified Soft Lewis Basic Complexants through Suzuki–Miyaura Cross-Coupling of Bromoheteroarenes with Organotrifluoroborates

Chin

Carrick

2016

J. Org. Chem.

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Remediation or transmutation of spent nuclear fuel obtained as a function of energy production and legacy waste remains a significant environmental concern. Substantive efforts over the last three decades have focused on the potential of soft-Lewis basic complexants for the chemoselective separation of trivalent actinides from lanthanides in biphasic solvent systems. Recent efforts in this laboratory have focused on the concept of modularity to rapidly prepare complexants and complexant scaffolds not easily accessible via traditional linear methods in a convergent manner to better understand solubility and complexation structure/activity function in process-relevant solvents. The current work describes an efficient method for the construction of diversified complexants through multi-Suzuki-Miyaura cross-coupling of bromoheteroarenes with organotrifluoroborates affording efficient access to 22 novel materials in 43-99% yield over two, three, or four cross-couplings on the same scaffold. Optimization of the catalyst/ligand system, application, and limitations are reported herein.

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Photoinduced ligand release in a ruthenium(ii)-cobalt(iii) heterodinuclear system

Cited by 15 publications

References 35 publications

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

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

Theoretical insight into photo-induced intramolecular electron transfer in heterodinuclear Ru(II)–Co(III) complexes

Modular Approaches to Diversified Soft Lewis Basic Complexants through Suzuki–Miyaura Cross-Coupling of Bromoheteroarenes with Organotrifluoroborates

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