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Quantum-chemical investigation of structure and reactivity of pyrazol-5-ones and their thio- and seleno-analogs: X. Solvent effect on the chemical shifts of nuclei in the molecules of 3-methylpyrazol-5-ones and 1-phenyl-3-methylchalcogenepyrazol-5-ones and characteristics of tautomeric equilibrium in these compounds is more sensitive to the nature of solvent and to the nature of tautomeric forms. The methods of NMR

Quantum-chemical study of the structure and reactivity of 4,5-dihydropyrazol-5-ones and their thio and seleno analogs: VIII. Solvation effects and tautomerism of 4,5-dihydropyrazol-5-ones and their thio and seleno analogsThe effect of hydration on the stability of tautomeric forms of 1-methyl-4,5-dihydro-1H-pyrazol-5

Structure and intramolecular flexibility of N-(thio)phosphoryl(thio)amides: VIII. Structure of N-phenyl,N'-(diisopropoxythiophosphoryl)thiourea that several forms, including two amide forms (EZ and ZE) and two prototropic forms, coexist in a dynamic

First coordination polymer based on diterpenoids. Synthesis, structure, and magnetic properties of the temperature dependence of the static magnetic susceptibility of the polymer indicates a weak antiferromagnetic

Study of tautomeric transformations of 1,4,5,8-tetraaminoanthraquinone by electronic spectroscopyBased on the example of 1,4,5,8-tetraamino-9,10-anthraquinone, a method is described

Structure and intramolecular lability of N-(thio)phosphoryl(thio)amides: XII. NMR study and computational modeling of the tautomeric forms of N-[dimethoxy(thio)phosphoryl]benzamides various tautomeric forms in solutions. The amide form with the NH proton arranged trans with respect

Synthesis, structure, and physico-chemical properties of 3-methyl and 3,3-dimethyl derivatives of l-(4′,4′-dimethyl-2′,6′-dioxocyclohex-1′-yl)-3,4-dihydroisoquinoline determined. In the crystalline state this compound exists as a tautomeric form where a hydrogen atom

SYNTHESIS, STRUCTURE, AND PHYSICOCHEMICAL PROPERTIES OF 3-METHYL AND 3,3-DIMETHYL DERIVATIVES OF 1-(4',4'-DIMETHYL-2',6'-DIOXOCYCLOHEX-1'-YL)-3,4-DIHYDROISOQUINOLINE determined. In the crystalline state this compound exists as a tautomeric form where a hydrogen atom

Tautomerism of metal complexes with carminic acid to the shift of tautomeric equilibria that takes place upon the change in the medium pH, the nature

Change in the Tautomeric Form of 1,1′-Azinobis(3,3-Dimethyl-3,4-Dihydroisocarbostyril) upon Coordination to Cobalt(II): Crystal Structure and Spectra of [CoLCl2] · C3H6O tautomeric state to the azine-hydrazine state. The bidentate chelating ligand L in I is linked to the metal

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