A Periodic Walk through a Series of First‐Row, Oxido‐Bridged, Heterodimetallic Molecules: Synthesis and Structure

Goggins, E.; Lekich, Travis T.; Weare, Walter W.; Sommer, Roger D.; Ribeiro, Marcos A.; Pinheiro, Carlos B.

doi:10.1002/ejic.201501325

Cited by 11 publications

(7 citation statements)

References 33 publications

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“…Studies using this method were conducted on both a Ti-oxo-Mn complex anchored to silica nanoparticles (solid sample) and on a molecular species with the same heterobimetallic core dissolved in a homogeneous solution (liquid sample). 43 Differences in the electron transfer dynamics are expected in the two cases, primarily due to the role played by the nanoparticles versus the solvent in stabilizing the species forming along the reaction pathway but also due to kinetic effects induced by the different media. The data for the system anchored to silica nanoparticles showed no change due to electron transfer $10 ps aer optical laser excitation.…”

Section: Faraday Discussion Papermentioning

confidence: 99%

Towards characterization of photo-excited electron transfer and catalysis in natural and artificial systems using XFELs

et al. 2016

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The ultra-bright femtosecond X-ray pulses provided by X-ray Free Electron Lasers (XFELs) open capabilities for studying the structure and dynamics of a wide variety of biological and inorganic systems beyond what is possible at synchrotron sources. Although the structure and chemistry at the catalytic sites have been studied intensively in both biological and inorganic systems, a full understanding of the atomic-scale chemistry requires new approaches beyond the steady state X-ray crystallography and X-ray spectroscopy at cryogenic temperatures. Following the dynamic changes in the geometric and electronic structure at ambient conditions, while overcoming X-ray damage to the redox active catalytic center, is key for deriving reaction mechanisms. Such studies become possible by using the intense and ultra-short femtosecond X-ray pulses from an XFEL, where sample is probed before it is damaged. We have developed methodology for simultaneously collecting X-ray diffraction data and X-ray emission spectra, using an energy dispersive spectrometer, at ambient conditions, and used this approach to study the room temperature structure and intermediate states of the photosynthetic water oxidizing metalloprotein, Photosystem II. Moreover, we have also used this setup to simultaneously collect the X-ray emission spectra from multiple metals to follow the ultrafast dynamics of light-induced charge transfer between multiple metal sites. A Mn-Ti containing system was studied at an XFEL to demonstrate the efficacy and potential of this method.

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Section: Faraday Discussion Papermentioning

confidence: 99%

Towards characterization of photo-excited electron transfer and catalysis in natural and artificial systems using XFELs

et al. 2016

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“…118,69 Other successful yet less widely-developed strategies to form oxobridged heterometallic complexes include C−H deprotonation to yield zwitterionic complexes; 119, 120 oxidation of heterometallic precursors; 121,122 use of a heterometallic reagent to encapsulate oxo dianions from air or ethereal solvents; [123][124][125] or adduct formation from a donor M=O functionality to a Lewis acidic metal centre. 126 Here we shall focus on the well-established and versatile dealkylation or deamination routes from organometallic/metal-amide precursors.…”

Section: Metal Hydroxyl Complexes As Protic Precursors For Oxo-bridgementioning

confidence: 99%

Hydrolysis of organometallic and metal–amide precursors: synthesis routes to oxo-bridged heterometallic complexes, metal-oxo clusters and metal oxide nanoparticles

Garden

Pike

2018

Dalton Trans.

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The hydrolysis reaction between Brønsted basic organometallic or metal-amide reagents with Brønsted acidic OH groups from water or metal-hydroxides may act as a controlled stoichiometric strategy for the formation of M-O-M bonds, if careful consideration of reaction conditions is employed. This article explores the utilisation of highly reactive organometallic and metal-amide complexes from across the periodic table as reagents for the synthesis of metal-oxo clusters, oxo-bridged heterobimetallics and metal oxide nanoparticles. Such reactivity typically occurs at low temperatures with the release of hydrocarbon or amine by-products. The impact of ligand coordination, M-C bond strength, M-OH acidity and reaction temperature are discussed.

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“…Synthesis of germanium(IV) DBTAA complexes, 3-6. Weare et al [41] reported the synthesis of several heterodimetallic complexes based on the DBTAA scaffold. Complex 7 can be synthesized by reacting the free ligand 2a with TiCl4 in the presence of a base, followed by the addition of aqueous ammonia [42,43] (Scheme 3).…”

Section: Synthesis and Reactivity Of Meso-unsubstituted Dbtaamentioning

confidence: 99%

Synthesis, functionalization and coordination chemistry of dibenzotetraaza[14]annulenes

Ramle

Tiekink

Basirun

2022

Coordination Chemistry Reviews

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A Periodic Walk through a Series of First‐Row, Oxido‐Bridged, Heterodimetallic Molecules: Synthesis and Structure

Cited by 11 publications

References 33 publications

Towards characterization of photo-excited electron transfer and catalysis in natural and artificial systems using XFELs

Towards characterization of photo-excited electron transfer and catalysis in natural and artificial systems using XFELs

Hydrolysis of organometallic and metal–amide precursors: synthesis routes to oxo-bridged heterometallic complexes, metal-oxo clusters and metal oxide nanoparticles

Synthesis, functionalization and coordination chemistry of dibenzotetraaza[14]annulenes

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