Prospects for solar synthesis

Guillet, J. E.

doi:10.1351/pac199163070917

Cited by 13 publications

(2 citation statements)

References 7 publications

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“…This is illustrated in Scheme 1: Donor D groups absorb light energy which is then transferred from the excited D (D*) to the acceptors A; D groups in the case of polymers and particularly peripherally-substituted starburst or dendrimeric polymers, have been likened to "antennae." 12 Various strategies have been used to approach controlled radical polymerization to give well-defined structure, [13][14][15][16] including Atom Transfer Radical Polymerization (ATRP), 17 Radical Addition Fragmentation (RAFT), [18][19][20] and Nitroxide Mediated Polymerization (NMP), 13 also termed Stable Free Radical Polymerization (SFRP).…”

Section: Introductionmentioning

confidence: 99%

SFRP Synthesis of Acenaphthylene Oligomers and Block Copolymers. Potential Light Harvesting Structures

Ali¹,

Ahmed²,

Dust³

et al. 2011

Bulletin of the Korean Chemical Society

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Azo-acenaphthylene oligomers with repeating acenaphthylene units "n" up to 4, 5, 7, 17 and 19 have been prepared successfully using nitroxide mediated Stable Free Radical Polymerization (SFRP). Azoacenaphthylene oligomers, reversibly end-capped by the stable nitroxide 2,2,6,6-tetramethyl-1-piperidinoxyl (TEMPO), were further reacted via radical addition to 4-(naphthalenemethoxy)styrene monomer for diblock co-polymer formation. Characterization of the oligomers and diblock co-polymers was accomplished using MALDI-MS supported by GPC (Gel Permeation Chromatography) and 1 H NMR spectrometry. MALDI-MS afforded definitive results by providing an inter-peak interval of 152 (m/z), corresponding to acenaphthylene monomer, and inter-peak interval of 260 (m/z) for the naphthalenemethoxystyrene monomer unit in block copolymers. Our study opens the way to control the number of repeat units in the oligomers. Further these oligomers can be tailored with various monomers for the formation of block copolymers.

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Section: Introductionmentioning

confidence: 99%

SFRP Synthesis of Acenaphthylene Oligomers and Block Copolymers. Potential Light Harvesting Structures

Ali¹,

Ahmed²,

Dust³

et al. 2011

Bulletin of the Korean Chemical Society

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“…This absorption feature is characteristic of the formation of a quinhydrone complex exhibiting a charge transfer band between reduced hydroquinone and quinone. [28][29][30][31][32] The formation of such a redox pair provides unambiguous support for the charge accumulation on the nano-PDPB upon the water photo-oxidation reaction. The storage of electrons and protons on metal oxide semiconductors such as TiO 2 for instance has recently opened new perspectives in solar energy conversion.…”

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confidence: 99%

Visible light-driven simultaneous water oxidation and quinone reduction by a nano-structured conjugated polymer without co-catalysts

et al. 2020

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Light‐Induced Activation of the Du Bois [Rh^II₂(Esp)₂] Catalyst for Nitrogen Atom Transfer Reactions

et al. 2017

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[Rh2(Esp)2] (Esp=α,α,α′,α′‐tetramethyl‐1,3‐benzenedipropionate) is a well‐established catalyst for intra‐ and intermolecular C(sp)3−H bond amination. We have prepared and isolated complex I, [Rh2(Esp)2(NHTces)2]2−, where the catalyst bears sulfonamidate ligands (−NHTces=−NHSO3CH2CCl3) as nitrogen sources in the coordination sphere of the rhodium centre. The possibility for light activation instead of chemical activation of the [Rh2(Esp)2] catalyst and complex I is demonstrated using [Ru(bpy)3]2+ as the photosensitizer. The oxidation of the two dinuclear Rh complexes occurs through two distinct pathways. On one hand, [Rh2(Esp)2] is oxidized in a bimolecular reaction with the RuIII species formed after excitation of the photosensitizer in the presence of an electron acceptor. In contrast, the lower oxidation potential of complex I allows for its oxidation to occur directly from the excited state of the photosensitizer, helped by ion‐pair formation between the negatively charged complex I with [Ru(bpy)3]2+. The charge‐separated state of the oxidized complex I/reduced photosensitizer had a lifetime of 50 μs.

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Prospects for solar synthesis

Cited by 13 publications

References 7 publications

SFRP Synthesis of Acenaphthylene Oligomers and Block Copolymers. Potential Light Harvesting Structures

SFRP Synthesis of Acenaphthylene Oligomers and Block Copolymers. Potential Light Harvesting Structures

Visible light-driven simultaneous water oxidation and quinone reduction by a nano-structured conjugated polymer without co-catalysts

Light‐Induced Activation of the Du Bois [Rh^II₂(Esp)₂] Catalyst for Nitrogen Atom Transfer Reactions

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Prospects for solar synthesis

Cited by 13 publications

References 7 publications

SFRP Synthesis of Acenaphthylene Oligomers and Block Copolymers. Potential Light Harvesting Structures

SFRP Synthesis of Acenaphthylene Oligomers and Block Copolymers. Potential Light Harvesting Structures

Visible light-driven simultaneous water oxidation and quinone reduction by a nano-structured conjugated polymer without co-catalysts

Light‐Induced Activation of the Du Bois [RhII2(Esp)2] Catalyst for Nitrogen Atom Transfer Reactions

Contact Info

Product

Resources

About

Light‐Induced Activation of the Du Bois [Rh^II₂(Esp)₂] Catalyst for Nitrogen Atom Transfer Reactions