Výsledky vyhledávání - "Parwin Schah-Mohammedi"

Dimerization and solvent-assisted proton dislocation in the low-barrier hydrogen bond of a Mannich base: a low-temperature NMR study

Autor: Lucjan Sobczyk, Hans-Heinrich Limbach, Sonya M. Melikova, Maria Rospenk, Parwin Schah-Mohammedi, N. S. Golubev

Publikováno v: ResearcherID

Using low-temperature UV, 1H and 15N NMR spectroscopy, we studied the easily polarizable O—H··· NOδ−···H··· Nδ+O−··· H—N+ hydrogen bond of the labeled Mannich base[15N] 2-(N,N-diethylaminomethyl)-3,4,6-trichlorophenol (Cl3MB) di

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d8bbcafb89bb551c8d228814d3b9744
https://doi.org/10.1002/mrc.943

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Hydrogen/Deuterium Isotope Effects on the NMR Chemical Shifts and Geometries of Intermolecular Low-Barrier Hydrogen-Bonded Complexes

Autor: Gleb S. Denisov, Sergei N. Smirnov, Hans-Heinrich Limbach, Nikolai S. Golubev, Parwin Schah-Mohammedi, Hans Benedict

Publikováno v: Journal of the American Chemical Society. 118:4094-4101

In this paper we describe H/D isotope effects on the chemical shifts of intermolecular hydrogen-bonded complexes exhibiting low barriers for proton transfer, as a function of the position of the hydrogen bond proton. For this purpose, low-temperature

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8d8ec6f4c9b0693d9cfb907c53588cd9
https://doi.org/10.1021/ja953445+

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Characterization of fluxional hydrogen-bonded complexes of acetic acid and acetate by NMR: geometries and isotope and solvent effects

Autor: S. N. Smirnov, Hans-Heinrich Limbach, Nikolai S. Golubev, Parwin Schah-Mohammedi, Peter M. Tolstoy, Gleb S. Denisov

Publikováno v: Journal of the American Chemical Society. 126(17)

1H, (2)H, and (13)C NMR spectra of enriched CH(3)(13)COOH acid without and in the presence of tetra-n-butylammonium acetate have been measured around 110 K using a liquefied Freon mixture CDF(3)/CDF(2)Cl as a solvent, as a function of the deuterium f

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f88c51a87896454e50172278ab9ed0e8
https://pubmed.ncbi.nlm.nih.gov/15113234

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Hydrogen/Deuterium-Isotope Effects on NMR Chemical Shifts and Symmetry of Homoconjugated Hydrogen-Bonded Ions in Polar Solution

Autor: Ilja G. Shenderovich, S. N. Smirnov, and Gleb S. Denisov, Hans-Heinrich Limbach, Carsten Detering, Nikolai S. Golubev, Peter M. Tolstoy, Parwin Schah-Mohammedi

Publikováno v: Journal of the American Chemical Society. 122:12878-12879

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b9cb43e4160c7347d985a3b539c4ce0f
https://doi.org/10.1021/ja0017615

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