Professor John Evans' Outputs (6)

Infinitely Adaptive Transition-Metal Ordering in Ln2O2MSe2-Type Oxychalcogenides (2015)
Journal Article
Ainsworth, C. M., Wang, C., Johnston, H. E., McCabe, E. E., Tucker, M. G., Brand, H. E., & Evans, J. S. (2015). Infinitely Adaptive Transition-Metal Ordering in Ln2O2MSe2-Type Oxychalcogenides. Inorganic Chemistry, 54(15), 7230-7238. https://doi.org/10.1021/acs.inorgchem.5b00599

The origin of transition-metal ordering in Ln2O2MSe2 oxychalcogenides has been revealed by investigating a range of solid solutions. Transition-metal ordering is determined by the relative sizes of [Ln2O2]2+ and [MSe2]2− layers and can be exquisitely... Read More about Infinitely Adaptive Transition-Metal Ordering in Ln2O2MSe2-Type Oxychalcogenides.

Infinitely Adaptive Transition Metal Oxychalcogenides: The Modulated Structures of Ce2O2MnSe2 and (Ce0.78La0.22)2O2MnSe2 (2015)
Journal Article
Wang, C., Ainsworth, C. M., Gui, D., McCabe, E. E., Tucker, M. G., Evans, I. R., & Evans, J. S. (2015). Infinitely Adaptive Transition Metal Oxychalcogenides: The Modulated Structures of Ce2O2MnSe2 and (Ce0.78La0.22)2O2MnSe2. Chemistry of Materials, 27(8), 3121-3134. https://doi.org/10.1021/acs.chemmater.5b00666

This article reports the syntheses, structures, and physical properties of the oxychalcogenides (Ce1–xLax)2O2MnSe2 with x = 0–0.7. These materials have a layered structure related to that of the LaOFeAs-derived superconductors but with the transition... Read More about Infinitely Adaptive Transition Metal Oxychalcogenides: The Modulated Structures of Ce2O2MnSe2 and (Ce0.78La0.22)2O2MnSe2.

Polar stacking of molecules in liquid chloroform (2015)
Journal Article
Shephard, J., Soper, A., Callear, S., Imberti, S., Evans, J., & Salzmann, C. (2015). Polar stacking of molecules in liquid chloroform. Chemical Communications, 51(23), 4770-4773. https://doi.org/10.1039/c4cc09235j

Using neutron diffraction and the isotopic substitution technique we have investigated the local structure of liquid chloroform. A strong tendency for polar stacking of molecules with collinear alignment of dipole moments is found. We speculate that... Read More about Polar stacking of molecules in liquid chloroform.

Synthesis, characterisation and properties of rare earth oxyselenides A4O4Se3 (A = Eu, Gd, Tb, Dy, Ho, Er, Yb and Y) (2015)
Journal Article
Tuxworth, A. J., Wang, C., & Evans, J. S. (2015). Synthesis, characterisation and properties of rare earth oxyselenides A4O4Se3 (A = Eu, Gd, Tb, Dy, Ho, Er, Yb and Y). Dalton Transactions, 44(7), 3009-3019. https://doi.org/10.1039/c4dt03336a

Rare earth oxyselenides A4O4Se3 (A = Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Yb and Y) were synthesised using solid state reactions and three new structure types (β, γ, and δ) were observed. A4O4Se3 materials adopt either the α (A = Nd, Sm), β (A = Eu), γ (A... Read More about Synthesis, characterisation and properties of rare earth oxyselenides A4O4Se3 (A = Eu, Gd, Tb, Dy, Ho, Er, Yb and Y).

Synthesis, Structural Characterization, and Physical Properties of the New Transition Metal Oxyselenide Ce2O2ZnSe2 (2015)
Journal Article
Ainsworth, C. M., Wang, C., Tucker, M. G., & Evans, J. S. (2015). Synthesis, Structural Characterization, and Physical Properties of the New Transition Metal Oxyselenide Ce2O2ZnSe2. Inorganic Chemistry, 54(4), 1563-1571. https://doi.org/10.1021/ic502551n

We report the synthesis and characterization of the new oxyselenide Ce2O2ZnSe2, which contains fluorite-like [Ce2O2]2+ layers of Ce4O tetrahedra (red) alternating with anti-fluorite-like [ZnSe2]2− layers (blue). The Zn ordering pattern in the selenid... Read More about Synthesis, Structural Characterization, and Physical Properties of the New Transition Metal Oxyselenide Ce2O2ZnSe2.

Bismuth zinc vanadate, BiZn2VO6: New crystal structure type and electronic structure (2015)
Journal Article
Nunes, S. E., Wang, C.-H., So, K., Evans, J. S., & Evans, I. R. (2015). Bismuth zinc vanadate, BiZn2VO6: New crystal structure type and electronic structure. Journal of Solid State Chemistry, 222, 12-17. https://doi.org/10.1016/j.jssc.2014.10.036

We report a combined experimental and computational study of the crystal structure and electronic properties of bismuth zinc vanadate, BiZn2VO6, known for its visible light photocatalytic activity. The crystal structure has been solved from laborator... Read More about Bismuth zinc vanadate, BiZn2VO6: New crystal structure type and electronic structure.