ORCID Profile
0000-0002-6248-2063
Current Organisation
University of Oxford
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Publisher: Wiley
Date: 23-03-2018
Abstract: The synthesis of the first 4d transition metal oxide-hydride, LaSr
Publisher: American Chemical Society (ACS)
Date: 12-08-2016
DOI: 10.1021/ACS.INORGCHEM.6B01484
Abstract: Topochemical reduction of the ordered double perovskite LaSrNiRuO6 with CaH2 yields LaSrNiRuO4, an extended oxide phase containing infinite sheets of apex-linked, square-planar Ni(1+)O4 and Ru(2+)O4 units ordered in a checkerboard arrangement. At room temperature the localized Ni(1+) (d(9), S = (1)/2) and Ru(2+) (d(6), S = 1) centers behave paramagnetically. However, on cooling below 250 K the system undergoes a cooperative phase transition in which the nickel spins align ferromagnetically, while the ruthenium cations appear to undergo a change in spin configuration to a diamagnetic spin state. Features of the low-temperature crystal structure suggest a symmetry lowering Jahn-Teller distortion could be responsible for the observed diamagnetism of the ruthenium centers.
Publisher: American Chemical Society (ACS)
Date: 13-02-2018
DOI: 10.1021/ACS.INORGCHEM.8B00026
Abstract: The anion-ordered oxide-hydride SrVO
Publisher: American Physical Society (APS)
Date: 17-07-2006
Publisher: American Chemical Society (ACS)
Date: 28-01-2013
DOI: 10.1021/JA309798E
Abstract: Low-temperature topochemical reduction of the cation disordered perovskite phase SrFe(0.5)Ru(0.5)O(3) with CaH(2) yields the infinite layer phase SrFe(0.5)Ru(0.5)O(2). Thermogravimetric and X-ray absorption data confirm the transition metal oxidation states as SrFe(0.5)(2+)Ru(0.5)(2+)O(2) thus, the title phase is the first reported observation of Ru(2+) centers in an extended oxide phase. DFT calculations reveal that, while the square-planar Fe(2+) centers adopt a high-spin S = 2 electronic configuration, the square-planar Ru(2+) cations have an intermediate S = 1 configuration. This combination of S = 2, Fe(2+) and S = 1, Ru(2+) is consistent with the observed spin-glass magnetic behavior of SrFe(0.5)Ru(0.5)O(2).
Publisher: Elsevier BV
Date: 05-2006
Publisher: SAGE Publications
Date: 13-01-2075
Abstract: Antipsychotic drug treatment alters status on key risk factors for cardiovascular disease. The aim of this study was to test whether cardiovascular risk factor associations differ in adults with psychosis and adults from the general community. Data were analysed for those aged 25–64 years from a nationally representative psychosis s le ( n = 1,457) and a national comparator s le ( n = 8,866). The Pearson correlation coefficient was used to estimate the association among tobacco use, body mass index, waist circumference, diastolic and systolic blood pressure and fasting total-, LDL- and HDL-cholesterol, triglycerides and plasma glucose. The robust Levene test was used to test for s le differences in variance. Correlations among cardiovascular risk indicators and between cardiovascular risk indicators and age were often significantly weaker in those with psychosis than in those from the national comparator s le. This was not due to a reduction in variance within the psychosis s le. Risk prediction that synthesizes multivariate risk indicator data needs to be connected to verified cardiovascular morbidity and mortality in those with psychosis to determine if standard risk calculators adequately discriminate those at high, medium and low future risk of cardiovascular morbidity and mortality. Until then the clinical implications of low or absent correlations among cardiovascular risk indicators and their low or absent association with increasing age is unclear but may indicate that risk equations commonly used in the general population may not be applicable for those with treated psychosis.
Publisher: American Chemical Society (ACS)
Date: 09-10-2018
DOI: 10.1021/ACS.INORGCHEM.8B02198
Abstract: Topochemical reduction of the double-perovskite oxide Sr
Publisher: American Chemical Society (ACS)
Date: 28-10-2019
DOI: 10.1021/ACS.INORGCHEM.9B02459
Abstract: High-pressure X-ray diffraction measurements on the layered oxyhydrides Sr
Location: United Kingdom of Great Britain and Northern Ireland
No related grants have been discovered for Michael Hayward.