Jiyong Zhao
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View article: Effects of ligand topology and iron coordination number on the electronic structure of FeIII-μ-oxo-CrIII complexes supported by tetramethylcyclam
Effects of ligand topology and iron coordination number on the electronic structure of FeIII-μ-oxo-CrIII complexes supported by tetramethylcyclam Open
57Fe Mössbauer, electron paramagnetic resonance, and 57Fe nuclear resonance vibrational spectroscopies are applied to characterize three different FeIII-O-CrIII complexes derived from the tetrame…
View article: AutoFocus: AI/ML-driven real-time wavefront diagnostics to autonomously align and optimize X-ray optics
AutoFocus: AI/ML-driven real-time wavefront diagnostics to autonomously align and optimize X-ray optics Open
We present an integrated system that combines advanced wavefront diagnostics with artificial intelligence (AI) to automate and optimize X-ray optics at synchrotron beamlines. This system couples real-time wavefront sensing with AI-driven c…
View article: Measurements of source emittance and beam coherence properties of the upgraded Advanced Photon Source
Measurements of source emittance and beam coherence properties of the upgraded Advanced Photon Source Open
The Advanced Photon Source (APS) has been upgraded with a multi-bend achromat lattice, achieving significantly reduced electron beam emittance and enhanced X-ray coherence. Precise characterization of these properties is essential for opti…
View article: Adding Time-Domain 161Dy Mössbauer to the Mix: a Multitechnique Investigation of Magnetic Transitions in a {CoIII3DyIII3} Cluster with a Toroidal Moment
Adding Time-Domain 161Dy Mössbauer to the Mix: a Multitechnique Investigation of Magnetic Transitions in a {CoIII3DyIII3} Cluster with a Toroidal Moment Open
The coordination cluster [CoIII3DyIII3(µ3-OH)4(O2C-C6H4-p-Me)6(pmide)3(H2O)3]Cl2∙10Me…
View article: Wavelength dependent photochemistry of an iron dinitrogen hydride complex via multiple spectroscopies - Competing ejection of axial ligands
Wavelength dependent photochemistry of an iron dinitrogen hydride complex via multiple spectroscopies - Competing ejection of axial ligands Open
Nitrogenase (N2ase) is a critical enzyme which catalyzes the reaction of N2 --> NH3 in nature. Studies on the spectroscopy and photochemistry of trans-[FeII(DMeOPrPE)2(N2)H][BPh4](1) and its isotopomers provide a possible first step to eva…
View article: Nature of the Reactive Biferric Peroxy Intermediate P′ in the Arylamine Oxygenases and Related Binuclear Fe Enzymes
Nature of the Reactive Biferric Peroxy Intermediate P′ in the Arylamine Oxygenases and Related Binuclear Fe Enzymes Open
Binuclear nonheme iron enzymes activate O2 to perform a wide range of chemical transformations. The process of O2 activation typically involves a biferric peroxy-level intermediate P. It has been previously found that…
View article: Thermoelastic Properties of Iron‐Rich Ringwoodite and the Deep Mantle Aerotherm of Mars
Thermoelastic Properties of Iron‐Rich Ringwoodite and the Deep Mantle Aerotherm of Mars Open
The Martian mantle is considered to have a higher Fe/Mg ratio than the Earth's mantle. Ringwoodite, γ‐(Mg,Fe) 2 SiO 4 , is likely the dominant polymorph of olivine in the core‐mantle boundary (CMB) region of Mars. We synthesized anhydrous …
View article: Wavelength dependent photochemistry of an iron dinitrogen hydride complex <i>via</i> multiple spectroscopies – competing ejection of axial ligands
Wavelength dependent photochemistry of an iron dinitrogen hydride complex <i>via</i> multiple spectroscopies – competing ejection of axial ligands Open
For this dinitrogen hydride complex, UV photolyses lead to a competitive ejection between N 2 and H· while visible light photolyses produce N 2 alone. It is the solid first step towards the future studies on nitrogenase–N 2 and its photoly…
View article: Pressure induced Invar effect in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mtext>Fe</mml:mtext><mml:mn>55</mml:mn></mml:msub><mml:msub><mml:mtext>Ni</mml:mtext><mml:mn>45</mml:mn></mml:msub></mml:mrow></mml:math>: An experimental study with nuclear resonant scattering
Pressure induced Invar effect in : An experimental study with nuclear resonant scattering Open
Pressure-dependent synchrotron x-ray diffraction (XRD), nuclear resonant inelastic x-ray scattering (NRIXS), and nuclear forward scattering (NFS) measurements were made on 57Fe55Ni45. XRD measurements were …
View article: Continuous pressure-induced valence and magnetic transitions in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>EuMnSb</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:math>
Continuous pressure-induced valence and magnetic transitions in Open
EuMnSb${}_{2}$ is a unique material platform to realize magnetic control of topological quasiparticles. The authors employ here external pressure as a tuning mechanism to investigate the valence and magnetic properties through a series of …
View article: Robust magnetism and crystal structure in Dirac semimetal EuMnBi<sub>2</sub> under high pressure
Robust magnetism and crystal structure in Dirac semimetal EuMnBi<sub>2</sub> under high pressure Open
Dirac materials offer exciting opportunities to explore low-energy carrier dynamics and novel physical phenomena, especially their interaction with magnetism. In this context, this work focuses on studies of pressure control on the magneti…
View article: Vibrational properties of a mononuclear dysprosium containing singlemolecule magnet
Vibrational properties of a mononuclear dysprosium containing singlemolecule magnet Open
Dysprosium(III)-containing single-molecule magnets (SMMs) show blocking of the molecular magnetization and hysteresis effects in one molecule. They belong to the class of the best performing SMMs at present. Here, we present first results …
View article: Fractionation of iron and titanium isotopes by ilmenite and the isotopic compositions of lunar magma ocean cumulates
Fractionation of iron and titanium isotopes by ilmenite and the isotopic compositions of lunar magma ocean cumulates Open
Basaltic volcanism on the Moon produced low- and high-Ti mare basalt suites that are also distinct with respect to their iron, titanium, and magnesium isotopic compositions. Here, the equilibrium fractionation of Fe and Ti isotopes between…
View article: <sup>57</sup>Fe nuclear resonance vibrational spectroscopic studies of tetranuclear iron clusters bearing terminal iron(<scp>iii</scp>)–oxido/hydroxido moieties
<sup>57</sup>Fe nuclear resonance vibrational spectroscopic studies of tetranuclear iron clusters bearing terminal iron(<span>iii</span>)–oxido/hydroxido moieties Open
57 Fe nuclear resonance vibrational spectroscopy (NRVS) is used to study the tetranuclear iron clusters bearing a terminal Fe( iii )–O/OH moiety. The redox states of the three remote basal iron sites modulate the Fe( iii )–O/OH vibrational…
View article: Vibrational properties of heme-nitrosoalkane complexes in comparison with those of their HNO analogs, and reactivity studies towards nitric oxide and Lewis acids
Vibrational properties of heme-nitrosoalkane complexes in comparison with those of their HNO analogs, and reactivity studies towards nitric oxide and Lewis acids Open
Six-coordinate heme-RNO complexes, [Fe(Porph)(L)(RNO)] (Porph = TPP, 3,5-Me-BAFP; R= iPr, Ph), were prepared and structurally and spectroscopically characterized. The reactivity of the complexes towards NO and different Lewis acids was the…
View article: Strong enhancement of magnetic ordering temperature and structural/valence transitions in EuPd <sub>3</sub> S <sub>4</sub> under high pressure
Strong enhancement of magnetic ordering temperature and structural/valence transitions in EuPd <sub>3</sub> S <sub>4</sub> under high pressure Open
We present a comprehensive study of the inhomogeneous mixed-valence compound, EuPd 3 S 4 , by electrical transport, X-ray diffraction, time-domain 151 Eu synchrotron Mössbauer spectroscopy, and X-ray absorption spectroscopy measurements un…
View article: The iron oxidation state of Ryugu samples
The iron oxidation state of Ryugu samples Open
The Hayabusa2 mission sampled Ryugu, an asteroid that did not suffer extensive thermal metamorphism, and returned rocks to the Earth with no significant air exposure. It therefore offers a unique opportunity to study the redox state of car…
View article: Melting and defect transitions in FeO up to pressures of Earth’s core-mantle boundary
Melting and defect transitions in FeO up to pressures of Earth’s core-mantle boundary Open
View article: CCDC 2166411: Experimental Crystal Structure Determination
CCDC 2166411: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 2166412: Experimental Crystal Structure Determination
CCDC 2166412: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: Reactive high-spin iron(IV)-oxo sites through dioxygen activation in a metal–organic framework
Reactive high-spin iron(IV)-oxo sites through dioxygen activation in a metal–organic framework Open
In nature, nonheme iron enzymes use dioxygen to generate high-spin iron(IV)=O species for a variety of oxygenation reactions. Although synthetic chemists have long sought to mimic this reactivity, the enzyme-like activation of O 2 to form …
View article: A novel integrated time-resolved array avalanche photodiode detection system for nuclear resonant scattering measurements
A novel integrated time-resolved array avalanche photodiode detection system for nuclear resonant scattering measurements Open
The nuclear resonant scattering (NRS) experiment requires photon-counting detectors with high time resolution, short dead time, large dynamic range, low noise, and large detection area. An 8-channel avalanche photodiode (APD) array detecto…
View article: Strong enhancement of magnetic ordering temperature and structural/valence transitions in EuPd3S4 under high pressure
Strong enhancement of magnetic ordering temperature and structural/valence transitions in EuPd3S4 under high pressure Open
We present a comprehensive study of the mixed valent compound, EuPd3S4, by electrical transport, X-ray diffraction, time-domain 151Eu synchrotron Mössbauer spectroscopy, and X-ray absorption spectroscopy measurements under high pressure. T…
View article: Rolling control and dynamics model of two section articulated-wing ornithopter
Rolling control and dynamics model of two section articulated-wing ornithopter Open
This paper invented a new rolling control mechanism of two section articulated-wing ornithopter, which is analogues to aileron control in plane, however, similar control mechanism leads to opposite result, indicating the ornithopter suppos…
View article: Evolution of magnetism, valence, and crystal lattice in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>EuCd</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi>As</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:mrow></mml:math> under pressure
Evolution of magnetism, valence, and crystal lattice in under pressure Open
EuCd2As2 has been proposed to be one of the ideal platforms as an intrinsic topological magnetic system, potentially hosting a single pair of Weyl points when it is tuned into the ferromagnetic state with spins aligne…
View article: Equation of State and Spin Crossover of (Al, Fe)‐Phase H
Equation of State and Spin Crossover of (Al, Fe)‐Phase H Open
The transport of hydrogen into Earth's deep interior may have an impact on lower mantle dynamics as well as on the seismic signature of subducted material. Due to the stability of the hydrous phases δ ‐AlOOH (delta phase), MgSiO 2 (OH) 2 (…
View article: Isotopic Constraints on the Nature of Primary Precipitates in Archean–Early Paleoproterozoic Iron Formations from Determinations of the Iron Phonon Density of States of Greenalite and 2L- and 6L-Ferrihydrite
Isotopic Constraints on the Nature of Primary Precipitates in Archean–Early Paleoproterozoic Iron Formations from Determinations of the Iron Phonon Density of States of Greenalite and 2L- and 6L-Ferrihydrite Open
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View article: CCDC 2172442: Experimental Crystal Structure Determination
CCDC 2172442: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: Spin polarization assisted facile C–H activation by an <i>S</i> = 1 iron(<scp>iv</scp>)–bisimido complex: a comprehensive spectroscopic and theoretical investigation
Spin polarization assisted facile C–H activation by an <i>S</i> = 1 iron(<span>iv</span>)–bisimido complex: a comprehensive spectroscopic and theoretical investigation Open
A spectroscopic and computational study reveals that bulky electron-withdrawing imido substituents stabilize a rare S = 1 iron( iv )–bisimido complex with a pseudo doubly degenerate ground electronic structure, accounting for its facile HA…
View article: Planet Size Controls Fe Isotope Fractionation Between Mantle and Core
Planet Size Controls Fe Isotope Fractionation Between Mantle and Core Open
As an element ubiquitous in the Solar system, the isotopic composition of iron exhibits rich variations in different planetary reservoirs. Such variations reflect the diverse range of differentiation and evolution processes experienced by …