R
Ralph Puchta
Researcher at University of Erlangen-Nuremberg
Publications - 154
Citations - 7641
Ralph Puchta is an academic researcher from University of Erlangen-Nuremberg. The author has contributed to research in topics: Cryptand & Ligand. The author has an hindex of 34, co-authored 148 publications receiving 6824 citations. Previous affiliations of Ralph Puchta include Al-Balqa` Applied University & University of Miami.
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Nucleus-independent chemical shifts (NICS) as an aromaticity criterion.
Zhongfang Chen,Chaitanya S. Wannere,Clémence Corminboeuf,Ralph Puchta,Paul von Ragué Schleyer +4 more
TL;DR: A comprehensive review is presented on nucleus-independent chem.
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Which NICS aromaticity index for planar pi rings is best
Hossein Fallah-Bagher-Shaidaei,Chaitanya S Wannere,Clemence Corminboeuf,Ralph Puchta,Paul von Ragué Schleyer +4 more
TL;DR: Five increasingly sophisticated aromaticity indexes, based on nucleus-independent chemical shifts (NICS), were evaluated against a uniform set of aromatic stabilization energies (ASE) for 75 mono- and polyheterocyclic five-membered rings to find the most fundamentally grounded index, NICS(0)pizz.
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Dissected Nucleus-Independent Chemical Shift Analysis of π-Aromaticity and Antiaromaticity.
Paul von Ragué Schleyer,Mariappan Manoharan,Zhi-Xiang Wang,Boggavarapu Kiran,Haijun Jiao,Ralph Puchta,Nicolaas J. R. van Eikema Hommes +6 more
TL;DR: Analysis of the basic π-aromatic (benzene) and antiaromatic systems by dissected nucleus-independent chemical shifts (NICS) shows the contrasting diatropics and paratropic effects, but also reveals subtleties and unexpected details.
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Gutmann donor and acceptor numbers for ionic liquids.
TL;DR: Gutmann donor and acceptor numbers for a series of 36 different ionic liquids that include 26 distinct anions are presented and correlated with other solvent parameters like the Kamlet-Taft set of parameters, and compared to the donor numbers reported by other groups.
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Thermodynamic and kinetic studies on reactions of Pt(II) complexes with biologically relevant nucleophiles.
TL;DR: The substitution of both coordinated water molecules by a series of nucleophiles and guanosine-5'-monophosphate (5'GMP-) was investigated under pseudo-first-order conditions as a function of concentration, temperature, and pressure and was found to occur in two subsequent reaction steps.