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Synthesis and coordination chemistry of cyclic seleno- and telluroureas
(De Gruyter, 2018-07)
Chalcogenated derivatives of N-heterocyclic carbene ligands have received increasing attention due to their
diverse chemical reactivity and potential applications in fields such as medicine and materials chemistry. ...
Temperature and freezing effects on phosphorus release from soils to overlying floodwater under flooded-anaerobic conditions
(American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, 2020-03-30)
Increased phosphorus (P) availability under flooded, anaerobic conditions may accelerate P loss from soils to water bodies. Existing knowledge on P release to floodwater from flooded soils is limited to summer conditions ...
Gypsum Amendment Reduces Redox-Induced Phosphorous Release from Freshly Manured, Flooded Soils to Floodwater
(American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, 2019-01-01)
The effectiveness of gypsum in reducing runoff P losses from soils and the mechanisms responsible are well documented; however, gypsum amendment effects in reducing redox-induced P losses from flooded soils are less ...
A new polymorph of phenylselenium trichloride
(International Union of Crystallography, 2019-11)
A second polymorph of phenylselenium trichloride, PhSeCl3 or C6H5Cl3Se, is
disclosed, which is comprised of asymmetric chlorine-bridged noncovalent
dimer units rather than polymeric chains. These dimers are each weakly ...
Diverse silver(I) coordination chemistry with cyclic selenourea ligands
(The Royal Society of Chemistry, 2018-01-30)
The coordination chemistry of two selenourea ligands (SeIMes and SeIPr) towards silver(I) triflate and silver(I) nitrate was investigated. Two aggregation modes were observed in the solid state, strongly influenced by the ...
Phosphorus Release from Unamended and Gypsum- or Biochar-Amended Soils under Simulated Snowmelt and Summer Flooding Conditions
(American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, 2020-03-30)
Prolonged flooding changes the oxidation–reduction status of soils, often enhancing P release to overlying floodwater. We studied P release from unamended, gypsum-amended, and biochar-amended soils under simulated snowmelt ...
The Truce–Smiles rearrangement and related reactions: a review
(NRC Research Press, 2017-01-16)
The Truce–Smiles rearrangement is an X → C aryl migration reaction that is achieved by an intramolecular nucleophilic aromatic substitution pathway. The reaction exhibits a wide substrate scope with respect to a migrating ...
Spectroscopic approaches for studying faint text on a wooden tally from Invincible (1758)
(International Journal of Conservation Science, 2013-01-01)
In this study we describe the application of X-ray fluorescence, variable pressure scanning electron microscopy and visible (420-720 nm) hyperspectral imaging to assess the surface properties of a wood tally stick that was ...
Effect of the tether length upon Truce‐Smiles rearrangement reactions
(John Wiley & Sons, Ltd., 2017-07-07)
This report examines the effect of substrate design upon the Truce‐Smiles rearrangement, an intramolecular nucleophilic aromatic substitution reaction. The length of the molecular spacer that tethers the carbanion nucleophile ...
Chemistry and the Environment: A Chemistry Perspective for discussion of Environmental Issues [first edition]
(OpenStax and University of Winnipeg Library, 2020-08-21)
Chemistry and the Environment is designed to accompany a one-semester course in chemistry-based discussions of important environmental issues such as air pollution, the ozone layer, climate change and water quality. Chemical ...