ORCID Profile
0000-0002-2408-1939
Current Organisation
University of Nottingham
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Publisher: Wiley
Date: 26-04-2023
Abstract: Herein, we report the synthesis and characterization of a new class of hybrid Wells–Dawson polyoxometalate (POM) containing a diphosphoryl group (P 2 O 6 X) of the general formula [P 2 W 17 O 57 (P 2 O 6 X)] 6− (X=O, NH, or CR 1 R 2 ). Modifying the bridging unit X was found to impact the redox potentials of the POM. The ease with which a range of α‐functionalized diphosphonic acids (X=CR 1 R 2 ) can be prepared provides possibilities to access erse functionalized hybrid POMs. Compared to existing phosphonate hybrid Wells–Dawson POMs, diphosphoryl‐substituted POMs offer a wider tunable redox window and enhanced hydrolytic stability. This study provides a basis for the rational design and synthesis of next‐generation hybrid Wells–Dawson POMs.
Publisher: Wiley
Date: 09-10-2017
Publisher: Wiley
Date: 05-2023
Abstract: Understanding and eliminating degradation of the electrolyte solution is arguably the major challenge in the development of high energy density lithium–air batteries. The use of acetonitrile provides cycle stability comparable to current state‐of‐the‐art glyme ethers and, while solvent degradation has been extensively studied, no mechanism for acetonitrile degradation has been proposed. Through the application of in situ pressure measurements and ex situ characterization to monitor the degradation of acetonitrile in the lithium–air battery, a correlation between H 2 O concentration within the cell and deviation from the idealized electron/oxygen ratio is revealed. Characterization of the cycled electrolyte solution identifies acetamide as the major degradation product under both cell and model conditions. A new degradation pathway is proposed that rationalizes the formation of acetamide, identifies the role of H 2 O in the degradation process, and confirms lithium hydroperoxide as a critical antagonistic species in lithium–air cells for the first time. These studies highlight the importance of considering the impact of atmospheric gases when exploring lithium–air cell chemistry and suggest that further exploration of the impact of hydroperoxide species on the degradation in lithium–air cells may lead to identification of more effective electrolyte solvents.
Publisher: American Chemical Society (ACS)
Date: 21-07-2023
DOI: 10.1021/JACS.3C03207
Publisher: CSIRO Publishing
Date: 2018
DOI: 10.1071/CH18256
Abstract: The synthesis of steroids and gaining an ultimate understanding of their reactivity was one of Sir Derek Barton’s most notable research areas. This highlight will focus on the construction of the steroid ring system from 2016 to 2018, and will include pathways that eventually led to natural product synthesis. For ex le, efficient syntheses of ent-pregnanolone sulfate and oestradiol methyl ether will be explained along with the total synthesis of cannogenol-3-O-α-l-rhamnoside.
Publisher: Royal Society of Chemistry (RSC)
Date: 2023
DOI: 10.1039/D3CC02138F
Abstract: An organofunctionalised hybrid polyoxometalate bearing Ru antennae exhibits selective CO 2 electrochemical reduction to C1 feedstocks.
Publisher: American Chemical Society (ACS)
Date: 31-07-2023
Publisher: Wiley
Date: 26-04-2023
Abstract: Herein, we report the synthesis and characterization of a new class of hybrid Wells–Dawson polyoxometalate (POM) containing a diphosphoryl group (P 2 O 6 X) of the general formula [P 2 W 17 O 57 (P 2 O 6 X)] 6− (X=O, NH, or CR 1 R 2 ). Modifying the bridging unit X was found to impact the redox potentials of the POM. The ease with which a range of α‐functionalized diphosphonic acids (X=CR 1 R 2 ) can be prepared provides possibilities to access erse functionalized hybrid POMs. Compared to existing phosphonate hybrid Wells–Dawson POMs, diphosphoryl‐substituted POMs offer a wider tunable redox window and enhanced hydrolytic stability. This study provides a basis for the rational design and synthesis of next‐generation hybrid Wells–Dawson POMs.
Publisher: Wiley
Date: 03-07-2015
Publisher: American Chemical Society (ACS)
Date: 19-12-2017
DOI: 10.1021/ACS.ORGLETT.7B03560
Abstract: A method for the coupling of aryl chlorides and thiophenols using an air-stable nickel(0) catalyst is described. This thioetherification procedure can be effectively applied to a range of electronically erse aryl/heteroaryl chlorides without more expensive metal catalysts such as palladium, iridium, or ruthenium. This investigation also illustrates both, a variety of thiol coupling partners and, in certain cases, the use of Cs
Publisher: American Chemical Society (ACS)
Date: 13-04-2020
Location: United Kingdom of Great Britain and Northern Ireland
No related grants have been discovered for Kieran Jones.