Results 51 to 60 of about 26,240 (223)

Criss-cross Cycloadditions on Ketazines Derived from Alicyclic Ketones

open access: yesMolecules, 2006
The reactivity of alicyclic ketazines in criss-cross cycloadditions was investigated. They react with potassium cyanate and ammonium thiocyanate in the presence of acetic acid to form spirocyclic perhydro[1,2,4]triazolo[1,2-a][1,2,4]triazole-1,5-diones ...
Milan Potacek, Jiri Verner
doaj   +1 more source

The synthesis and study of physicochemical properties of 1,2,4-triazole derivatives containing the phenethyl group in position 5

open access: yesЖурнал органічної та фармацевтичної хімії, 2020
During the last decade, national and foreign scientists have been constantly examining an example of studying the physicochemical and biological properties of nitrogen containing heterocycles, particularly with the nucleus of 1,2,4-triazole.
Tetiana V. Ihnatova   +2 more
doaj   +1 more source

A new luminescent Ru(terpy) complex incorporating a 1,2,4-triazole based σ-donor ligand [PDF]

open access: yes, 2000
The mononuclear compound [Ru(terpy)L], where H2L is 2,6-bis(1,2,4-triazol-3-yl)pyridine, shows an emission lifetime of 65 ns, about 300 times longer than that observed for the parent [Ru(terpy)3]2 ...
Duati, Marco   +2 more
core   +1 more source

Ni(0) catalysed homo-coupling reactions: a novel route towards the synthesis of multinuclear ruthenium polypyridine complexes featuring made-to-order properties. [PDF]

open access: yes, 2000
A new synthetic procedure for the efficient preparation of dinuclear ruthenium(II) polypyridyl complexes is reported. The compounds synthesised are [(bpy)2Ru(BPBT)Ru(bpy)2](PF6)2 and [(bpy)2Ru(BPZBT)Ru(bpy)2](PF6)2 (bpys2,29-bipyridine; H2BPBTs5,59 ...
Campagna, Sebastiano   +4 more
core   +1 more source

Potential energetic salts of 5,5′-methylenedi(4H-1,2,4-triazole-3,4-diamine) cation: Synthesis, characterization and detonation performance

open access: yesEnergetic Materials Frontiers, 2022
1,2,3-Triazole and 1,2,4-triazole have been vigorously used in energetic materials research. Among these two, 1,2,4-triazole has been a widely used backbone in designing new energetic materials with improved performance.
Ramling S Mathpati   +3 more
doaj  

Synthesis of 2-(3-chloro-4-nitro-1-benzothien-2-yl)-1,3,4-oxadiazole-1,3,4-thiadiazole and 5-(3-chloro-4-nitro-1-benzothien-2-yl)-4H-1,2,4-triazole-3-thiol [PDF]

open access: yesمجلة التربية والعلم, 2010
In this paper the synthesis of some substituted 1,3,4-oxadiazole, 1,3,4-thiadiazole and 1,2,4-triazole is reported. 3-chloro-4-nitro-2-chloro carbonyl benzo [b] thiophene(1) was synthesized from 2-nitrocinnamic acid by its reaction with thionyl chloride ...
Khalid M. Daoud   +2 more
doaj   +1 more source

Predicting Solid-State Heats of Formation of Newly Synthesized Polynitrogen Materials by Using Quantum Mechanical Calculations [PDF]

open access: yes, 2008
We present density functional theory level predictions and analysis of the basic properties of newly synthesized high-nitrogen compounds together with 3,6-bis(2H-tetrazol-5-yl)-1,2,4,5-tetrazine (BTT) and 3,3′-azobis(6-amino-1,2,4,5-tetrazine) (DAAT ...
Abou-Rachid, H.   +5 more
core   +1 more source

Vaporisation Thermodynamics: Are Triazolium Ionic Liquids a Real Alternative to Popular Imidazolium-Based Ionic Liquids?

open access: yesLiquids
New experimental vapour pressures and vaporisation enthalpies of the ionic liquids [2,4-dimethyl-1,2,4-triazolium][NTf2], [2-methyl-4-ethyl-1,2,4-triazolium][NTf2], and [2-ethyl-4-methyl-1,2,4-triazolium][NTf2] were measured using the Langmuir method in ...
Sergey P. Verevkin, Dzmitry H. Zaitsau
doaj   +1 more source

Mononuclear Perfluoroalkyl-Heterocyclic Complexes of Pd(II): Synthesis, Structural Characterization and Antimicrobial Activity

open access: yesMolecules, 2020
Two mononuclear Pd(II) complexes [PdCl2(pfptp)] (1) and [PdCl2(pfhtp)] (2), with ligands 2-(3-perfluoropropyl-1-methyl-1,2,4-triazole-5yl)-pyridine (pfptp) and 2-(3-perfluoroheptyl-1-methyl-1,2,4-triazole-5yl)-pyridine (pfhtp), were synthesized and ...
Simona Rubino   +7 more
doaj   +1 more source

Spin state dependence of electrical conductivity of spin crossover materials [PDF]

open access: yes, 2012
We studied the spin state dependence of the electrical conductivity of the spin crossover compound [Fe(Htrz)2(trz)](BF4) (Htrz = 1H-1,2,4-triazole) by means of dc electrical measurements.
Bousseksou, Azzedine   +5 more
core   +3 more sources

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