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Your search keyword '"Joshua T. Greenfield"' showing total 4 results
Start Over Author "Joshua T. Greenfield" Journal inorganic chemistry
4 results on '"Joshua T. Greenfield"'

1. Tuning Fe–Se Tetrahedral Frameworks by a Combination of [Fe(en)3]2+ Cations and Cl– Anions

Author

Michael Shatruk, Eranga H. Gamage, Liang Luo, Saeed Kamali, Joshua T. Greenfield, Colin P. Harmer, Jigang Wang, Colin D. Unger, Kirill Kovnir, and Judith K. Clark

Subjects
Inorganic Chemistry, chemistry.chemical_compound, Crystallography, chemistry, Chain (algebraic topology), 010405 organic chemistry, Tetrahedron, Ethylenediamine, Physical and Theoretical Chemistry, 010402 general chemistry, 01 natural sciences, 0104 chemical sciences
Abstract

A one-dimensional (1D) chain compound [Fe(en)3]3(FeSe2)4Cl2 (en = ethylenediamine), featuring tetrahedral FeSe2 chains separated by [Fe(en)3]2+ cations and Cl– anions, has been synthesized by a low...

Published
2020
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3. Synthesis, Crystal Structure, and Magnetic Properties of R2Mg3SiPn6 (R = La, Ce; Pn = P, As)

Author

Kirill Kovnir, Jian Wang, and Joshua T. Greenfield

Subjects
education.field_of_study, Chemistry, Population, 02 engineering and technology, Crystal structure, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, Inorganic Chemistry, Crystal, Pearson symbol, Crystallography, Octahedron, Orthorhombic crystal system, Physical and Theoretical Chemistry, Isostructural, 0210 nano-technology, education, Single crystal
Abstract

Four new quaternary pnictides, R2Mg3SiPn6 (R = La, Ce; Pn = P, As), were synthesized via high-temperature solid-state reactions and gas-phase transport reactions with iodine. Their crystal structures were determined by single crystal X-ray diffraction. All four compounds are isostructural and crystallize in a new structure type in the orthorhombic space group Pnma (No. 62, Z = 4), Pearson symbol oP48. The crystal structures of R2Mg3SiPn6 are composed of two-dimensional puckered MgP3 layers, which are connected in a three-dimensional framework by P–P dimers and MgSiP4 double-tetrahedral chains. Rare-earth cations are encapsulated inside the channels of the framework running along [010]. Quantum-chemical calculations predict that La2Mg3SiP6 is an indirect narrow bandgap semiconductor. The Mg–P bonding in MgP4 tetrahedra and MgP6 octahedra was analyzed by means of crystal orbital Hamilton population (COHP) analysis. Magnetic characterization of Ce-containing compounds confirmed the trivalent nature of cerium...

Published
2017
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