Mark R. Warren
YOU?
Author Swipe
View article: Selective CO2 uptake mimics dissolution in highly fluorinated non-porous crystalline materials
Selective CO2 uptake mimics dissolution in highly fluorinated non-porous crystalline materials Open
Separation of CO 2 from gas mixtures is important in applications such as CH 4 gas purification and blue hydrogen production. Here we report selective CO 2 uptake by a family of flexible silver coordination polymers (AgCPs) that are ostens…
View article: In Situ Single-Crystal X-ray Diffraction Studies of an Anomalous Nitric Oxide Adsorption in a Partially Activated Metal–Organic Framework
In Situ Single-Crystal X-ray Diffraction Studies of an Anomalous Nitric Oxide Adsorption in a Partially Activated Metal–Organic Framework Open
Metal-organic frameworks (MOFs), with their high porosities and surface areas, show great utility in the field of gas adsorption. To unlock this porosity, MOFs are generally fully activated by removing all adsorbed guests using high temper…
View article: The Impact of X‐ray Damage in Chemical Crystalline Materials and New Opportunities for Small Molecule Serial Crystallography
The Impact of X‐ray Damage in Chemical Crystalline Materials and New Opportunities for Small Molecule Serial Crystallography Open
In line with the dramatic and continuing improvements in X‐ray generation technologies for laboratory and accelerator sources around the world, reports of X‐ray‐induced processes in chemical crystalline materials are on the rise. These obs…
View article: Pressure-induced enhancement of polar distortions in a metal and implications for the Rashba spin splitting
Pressure-induced enhancement of polar distortions in a metal and implications for the Rashba spin splitting Open
Polar metals are an intriguing class of materials that feature a polar crystal structure while also exhibiting metallic conductivity. The unique properties of polar metals challenge expectations, making way for the exploration of exotic ph…
View article: The application of acoustics for sample manipulation and delivery at X-Ray Light Sources
The application of acoustics for sample manipulation and delivery at X-Ray Light Sources Open
The latest developments in acoustic technology and their integration of standing waves offers the potential to eject and trap tiny amounts of both liquid and solids with precision and stability in free space. This is appealing for experime…
View article: Decoupled MOF Breathing: Pressure‐Induced Reversal of Correlation Between Orthogonal Motions in a Diamondoid Framework
Decoupled MOF Breathing: Pressure‐Induced Reversal of Correlation Between Orthogonal Motions in a Diamondoid Framework Open
Responsive porous materials can outperform more rigid analogues in applications requiring precise triggering of molecular uptake/release, switching or gradual change in properties. We have uncovered an unprecedented dynamic response in the…
View article: Decoupled MOF Breathing: Pressure‐Induced Reversal of Correlation Between Orthogonal Motions in a Diamondoid Framework
Decoupled MOF Breathing: Pressure‐Induced Reversal of Correlation Between Orthogonal Motions in a Diamondoid Framework Open
Responsive porous materials can outperform more rigid analogues in applications requiring precise triggering of molecular uptake/release, switching or gradual change in properties. We have uncovered an unprecedented dynamic response in the…
View article: The varying temperature- and pressure-induced phase transition pathways in hybrid improper ferroelectric Sr<sub>3</sub>Sn<sub>2</sub>O<sub>7</sub>
The varying temperature- and pressure-induced phase transition pathways in hybrid improper ferroelectric Sr<sub>3</sub>Sn<sub>2</sub>O<sub>7</sub> Open
A variable-temperature and pressure single-crystal diffraction study of hybrid improper ferroelectric Sr 3 Sn 2 O 7 is reported. In combination with symmetry analysis, we reveal that the application of pressure and temperature induce disti…
View article: Symmetry breaking in Prussian Blue Analogues via growth--guided local ordering of hexacyanometallate vacancies
Symmetry breaking in Prussian Blue Analogues via growth--guided local ordering of hexacyanometallate vacancies Open
We report Growth--Guided Local Ordering, a novel mechanism of symmetry reduction in disordered crystals. This mechanism operates through the directional ordering of point defects during crystal growth, where defect correlations develop pre…
View article: Pressure induced enhancement of polar distortions in a metal, and implications on the Rashba spin-splitting
Pressure induced enhancement of polar distortions in a metal, and implications on the Rashba spin-splitting Open
Polar metals are an intriguing class of materials in which electric polarisation and metallicity can coexist within a single phase. The unique properties of polar metals challenge expectations, making way for the exploration of exotic phen…
View article: Emergent Polar Metal Phase in a Van der Waals Mott Magnet
Emergent Polar Metal Phase in a Van der Waals Mott Magnet Open
We report the emergence of a polar metal phase in layered van der Waals compound FePSe$_3$. This Mott insulator with antiferromagnetic order offers a unique opportunity to fully tune an insulator into a polar metal state with pressure, wit…
View article: Mass incarceration and the school-to-prison pipeline: the intergenerational transmission of criminalization
Mass incarceration and the school-to-prison pipeline: the intergenerational transmission of criminalization Open
Although the school-to-prison pipeline and mass incarceration arose in the United States at the same time, scholars have addressed them separately. In this article, we show that both systems rose due to an overreliance on policing in socie…
View article: Segmented milli-fluidic crystallisation of paracetamol with <i>in situ</i> single-crystal X-ray diffraction
Segmented milli-fluidic crystallisation of paracetamol with <i>in situ</i> single-crystal X-ray diffraction Open
We present the first known example of single crystal X-ray diffraction of small molecule crystals in a flow crystallisation environment via serial crystallography. Towards radiation damage mitigation, high-throughput screening and kinetic …
View article: Pressure-induced phase behaviour and compressibility of the racemic and chiral solid forms, ofloxacin and levofloxacin
Pressure-induced phase behaviour and compressibility of the racemic and chiral solid forms, ofloxacin and levofloxacin Open
High-pressure crystallography of three related fluoroquinolone solid forms reveals distinct phase behaviour under compression providing understanding of API stability under processing conditions.
View article: Controlled microcrystallization for <i>in situ</i> photocrystallography: optimizing crystal size and habit
Controlled microcrystallization for <i>in situ</i> photocrystallography: optimizing crystal size and habit Open
Advanced microcrystallization of inorganic functional materials enables precise control of crystal particle attributes, influencing their useful behaviours e.g. photoswitch population.
View article: Ligand‐Mediated Quantum Yield Enhancement in 1‐D Silver Organothiolate Metal–Organic Chalcogenolates
Ligand‐Mediated Quantum Yield Enhancement in 1‐D Silver Organothiolate Metal–Organic Chalcogenolates Open
X‐ray free electron laser (XFEL) microcrystallography and synchrotron single‐crystal crystallography are used to evaluate the role of organic substituent position on the optoelectronic properties of metal–organic chalcogenolates (MOChas). …
View article: Rapid extraction of trace benzene by a crown-ether-based metal-organic framework
Rapid extraction of trace benzene by a crown-ether-based metal-organic framework Open
Due to almost identical boiling points of benzene and cyclohexane, the extraction of trace benzene from cyclohexane is currently performed via the energy-intensive extractive distillation method. Their adsorptive separation by porous mater…
View article: The calcium transient coupled to the L-type calcium current attenuates cardiac alternans
The calcium transient coupled to the L-type calcium current attenuates cardiac alternans Open
Cardiac action potential (AP) alternans have been linked to the development of arrhythmia. AP alternans may be driven by AP instabilities, Ca 2+ transient (CaT) instabilities, or both. The mechanisms underlying CaT driven AP alternans is w…
View article: UF/IFAS Nutrient Management Recommendation Series: Watermelon
UF/IFAS Nutrient Management Recommendation Series: Watermelon Open
Nutrient management recommendations for watermelon are described according to the standard UF/IFAS recommendation format of 1) a calibrated soil test result; 2) target soil pH; 3) the "4Rs" of fertilizer management: rate, timing, placement…
View article: Methods in molecular photocrystallography
Methods in molecular photocrystallography Open
Over the last three decades, the technology that makes it possible to follow chemical processes in the solid state in real time has grown enormously. These studies have important implications for the design of new functional materials for …
View article: Photoinitiated single-crystal to single-crystal redox transformations of titanium-oxo clusters
Photoinitiated single-crystal to single-crystal redox transformations of titanium-oxo clusters Open
Titanium-oxo clusters can undergo photochemical reactions\nunder\nUV light, resulting in the reduction of the titanium-oxo core and\noxidation of surface ligands. This is an important step in photocatalytic\nprocesses in light-absorbing Ti…
View article: Photoinitiated Single-Crystal to Single-Crystal Redox Transformations of Titanium-Oxo Clusters
Photoinitiated Single-Crystal to Single-Crystal Redox Transformations of Titanium-Oxo Clusters Open
Titanium-oxo clusters can undergo photochemical reactions under UV light, resulting in the reduction of the titanium-oxo core and oxidation of surface ligands. This is an important step in photocatalytic processes in light-absorbing Ti/O-b…
View article: Exploring Pyroelectricity, Thermal and Photochemical Switching in a Hybrid Organic‐Inorganic Crystal by In Situ X‐Ray Diffraction
Exploring Pyroelectricity, Thermal and Photochemical Switching in a Hybrid Organic‐Inorganic Crystal by In Situ X‐Ray Diffraction Open
The switching behavior of the novel hybrid material (FA)Na[Fe(CN) 5 (NO)].H 2 O ( 1 ) in response to temperature ( T ), light irradiation and electric field ( E ) is studied using in situ X‐ray diffraction (XRD). Crystals of 1 display piez…
View article: Exploring Pyroelectricity, Thermal and Photochemical Switching in a Hybrid Organic‐Inorganic Crystal by In Situ X‐Ray Diffraction
Exploring Pyroelectricity, Thermal and Photochemical Switching in a Hybrid Organic‐Inorganic Crystal by In Situ X‐Ray Diffraction Open
The switching behavior of the novel hybrid material (FA)Na[Fe(CN) 5 (NO)].H 2 O ( 1 ) in response to temperature ( T ), light irradiation and electric field ( E ) is studied using in situ X‐ray diffraction (XRD). Crystals of 1 display piez…
View article: Selectively dissolving CO2 in highly fluorinated non-porous crystalline materials
Selectively dissolving CO2 in highly fluorinated non-porous crystalline materials Open
Separation of CO2 from gas mixtures is important is specific applications such as purification of CH4 gas and blue hy-drogen production and more generally in the separation and processing of greenhouse effect gases to mitigate the hazardou…
View article: <i>In Situ</i> Single-crystal X-ray Diffraction Studies of Physisorption and Chemisorption of SO<sub>2</sub> within a Metal–Organic Framework and Its Competitive Adsorption with Water
<i>In Situ</i> Single-crystal X-ray Diffraction Studies of Physisorption and Chemisorption of SO<sub>2</sub> within a Metal–Organic Framework and Its Competitive Adsorption with Water Open
Living on an increasingly polluted planet, the removal of toxic pollutants such as sulfur dioxide (SO2) from the troposphere and power station flue gas is becoming more and more important. The CPO-27/MOF-74 family of metal-organic framewor…
View article: Ligand effects on gas adsorption in nanoporous phthalocyanine crystals
Ligand effects on gas adsorption in nanoporous phthalocyanine crystals Open
Sorption of CO and NO in phthalocyanine nanoporous crystals with 4,4′ bipyridine or 4,4′ bipyrimidine trans coordinated to open Co 2+ sites has been studied, demonstrating how the ligands influence gas sorption properties and structures.
View article: Analysis of a Cu‐Doped Metal–Organic Framework, MFM‐520(Zn<sub>1‐x</sub>Cu<sub>x</sub>), for NO<sub>2</sub> Adsorption
Analysis of a Cu‐Doped Metal–Organic Framework, MFM‐520(Zn<sub>1‐x</sub>Cu<sub>x</sub>), for NO<sub>2</sub> Adsorption Open
MFM‐520(Zn) confines dimers of NO 2 with a high adsorption of 4.52 mmol g −1 at 1 bar at 298 K. The synthesis and the incommensurate structure of Cu‐doped MFM‐520(Zn) are reported. The introduction of paramagnetic Cu 2+ sites allows invest…
View article: CCDC 2267889: Experimental Crystal Structure Determination
CCDC 2267889: 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 …