Results 11 to 20 of about 93,007 (256)

SYNTHESIS OF OSMIUM COMPLEXES ON THE BASE OF NEW POLYMERS CONTAINING AMINE AND CARBOXYLIC FUNCTIONAL GROUPS

open access: yesВестник Дагестанского государственного технического университета: Технические науки, 2016
Osmium complexes by interaction osmium bipyridyl chloride (Os(bipy)2Cl2) and dimmethylbipyridil chloride (Os(dimebipy)2Cl2) with a number of synthesised polymers on the base of 1-(3-aminepropyl)-imidazole, methylmethacrylate, acrylic acid and ...
Yu. M. Sultanov
doaj   +1 more source

Process and kinetic analysis of osmium prepared by microwave sintering

open access: yesFenmo yejin jishu, 2021
Os sintered body was prepared by microwave sintering process. The influences of the green compact pressure and the microwave sintering parameters (heating rate, sintering temperature, and holding time) on the microstructure and relative density of Os ...
LIU Wei   +9 more
doaj   +1 more source

Seawater Chemistry and Hydrothermal Controls on the Cenozoic Osmium Cycle

open access: yesGeophysical Research Letters, 2021
Osmium isotope ratios are a key tool to track changes in global weathering and carbon cycle evolution through time. Long‐term changes in seawater Os isotope records over the Cenozoic have been used to argue for changes in weathering from increased uplift,
Joachim A. R. Katchinoff   +4 more
doaj   +1 more source

Unusual Transformation of N-Arylbenzohydroxamic Acids Mediated by Osmium. Formation of Organometallic Complexes of Osmium(III)

open access: yes, 2016
Unusual Transformation of N-Arylbenzohydroxamic Acids Mediated by Osmium.
Anindya Das (703623)   +3 more
core   +2 more sources

Synthesis and characterisation of a series of novel mononuclear and surface active dinuclear ruthenium (II) and osmium (II) polypyridyl complexes [PDF]

open access: yes, 2002
The synthesis, spectroscopic and electrochemical characterisation of a series of mononuclear and dinuclear ruthenium (II) and osmium (II) complexes is described. Chapter 1 provides an introduction to the area of supramolecular chemistry.
Guckian, Adrian Liam
core   +1 more source

Direct Access to POP-Type Osmium(II) and Osmium(IV) Complexes: Osmium a Promising Alternative to Ruthenium for the Synthesis of Imines from Alcohols and Amines

open access: yes, 2016
An easy and direct access to POP-type osmium(II) and osmium(IV) complexes, including OsH4{dbf(PiPr2)2} (dbf(PiPr2)2 = 4,6-bis(diisopropylphosphine)dibenzofuran), is reported.
Enrique Oñate (1359039)   +4 more
core   +2 more sources

Structurally Simple Osmium(II) Polypyridyl Complexes as Photosensitizers for Photodynamic Therapy in the Near Infrared [PDF]

open access: yes, 2022
Five osmium(II) polypyridyl complexes of the general formula [Os(4,7-diphenyl-1,10-phenanthroline)2L]2+ were synthesized as photosensitizers for photodynamic therapy by varying the nature of the ligand L.
Albert, Gandioso   +11 more
core   +1 more source

Safe Haven Re-Evaluated: Technological Disruption and the Collapse of Natural and Synthetic (Manmade) Diamond Value

open access: yesCommodities
Technological advances in laboratory-grown diamonds (LGDs) have eroded the scarcity premium of natural diamonds, raising the question of whether diamonds still function as a safe haven.
Ingo Wolf, Martin Užík
doaj   +1 more source

New Osmium-Based Reagent for the Dihydroxylation of Alkenes

open access: yes, 2016
The cis dihydroxylation of alkenes is most efficiently accomplished by reaction with osmium tetroxide. Recently, the expense and toxicity of osmium tetroxide have led to a number of attempts to harness alternative osmium-based reagents, including ...
Sam Butterworth (1643368)   +5 more
core   +4 more sources

Crystallographic and Theoretical Study of Osme Bonds in Nitrido-Osmium(VI) Complexes

open access: yesInorganics, 2022
Osme bonds have been recently defined as the attractive interaction between an element of group 8 acting as an electrophile and any atom or group of atoms acting as a nucleophile.
Rosa M. Gomila, Antonio Frontera
doaj   +1 more source

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