The use of DOSY experiments to determine the solution structures of coinage metal pyrazolates: The case of {[3,5-(CF 3 ) 2 Pz]Ag} 3 .

Autor: Alkorta I; Instituto de Química Médica, CSIC, Madrid, Spain., Benito MT; Servicio de Resonancia Magnética Nuclear, Centro de Química Orgánica 'Lora-Tamayo', CSIC, Madrid, Spain., Elguero J; Instituto de Química Médica, CSIC, Madrid, Spain., Doyagüez EG; Servicio de Resonancia Magnética Nuclear, Centro de Química Orgánica 'Lora-Tamayo', CSIC, Madrid, Spain., Patterson MR; Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas, USA., Jimeno ML; Servicio de Resonancia Magnética Nuclear, Centro de Química Orgánica 'Lora-Tamayo', CSIC, Madrid, Spain., Dias HVR; Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas, USA., Reviriego F; Instituto de Ciencia y Tecnología de Polímeros, CSIC, Madrid, Spain.
Jazyk: angličtina
Zdroj: Magnetic resonance in chemistry : MRC [Magn Reson Chem] 2022 Apr; Vol. 60 (4), pp. 442-451. Date of Electronic Publication: 2022 Jan 07.
DOI: 10.1002/mrc.5242
Abstrakt: A series of DOSY experiments have been carried out to determine the solution stoichiometry of silver(I) 3,5-bis (trifluoromethyl)pyrazolate species. This compound exists as a trimer in the solid state (n = 3) but in solutions of chlorinated solvents, the DOSY data suggest the presence of a mixture of solvent stabilized monomer (n = 1) and dimer (n = 2) in equilibrium. Different approximations have been used including the Stokes-Einstein and the Stokes-Einstein-Gierer-Wirtz equations. Some methodological problems are discussed.
(© 2021 John Wiley & Sons, Ltd.)
Databáze: MEDLINE
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