Dr. Ralph Puchta
PD Dr. Ralph Puchta
Bisherige Webseite:
https://www2.chemie.uni-erlangen.de/puchta/
Aktuelle Forschungsinteressen:
- Untersuchungen an potentiell pharmazeutisch-biologisch bzw. katalytisch relevanten Übergangsmetallkomplexen
- Studien zum Liganden- bzw. Lösungsmittelaustausch an Mn+-Ionen
- {2}-(Metallo)Cryptanden und {2}-(Metallo)Cryptate
- Hückel- und Möbiusaromatizität
Publications
(noch nicht vollständig)
2024
Investigation of Huisgen's Noble metal catalyst click reaction mechanism for the synthesis of 1,4-disubstituted 1,2,3-triazoles
In: Molecular Catalysis 566 (2024), Article No.: 114412
ISSN: 2468-8231
DOI: 10.1016/j.mcat.2024.114412 , , , , :
Investigation of the complete encapsulation process of the noble gases by cryptophanes
In: Journal of Computational Chemistry (2024)
ISSN: 0192-8651
DOI: 10.1002/jcc.27519 , , , , :
2023
Predicting a New Δ-Proton Sponge-Base of 4,12-Dihydrogen-4,8,12-triazatriangulene through Proton Affinity, Aromatic Stabilization Energy, and Aromatic Magnetism
In: ChemPhysChem (2023)
ISSN: 1439-4235
DOI: 10.1002/cphc.202200688 , :
Ligand exchange at tetra-coordinated beryllium centres
In: Dalton Transactions (2023)
ISSN: 1477-9226
DOI: 10.1039/d3dt00713h , , , , , :
Host-guest complexes of a cryptand based on 5H-cyclopenta[2,1-b:3,4b′]pyridine moieties: prediction of ion selectivity by quantum chemical calculations XVI
In: Journal of Coordination Chemistry (2023)
ISSN: 0095-8972
DOI: 10.1080/00958972.2023.2289865 , , , , , :
A Personal Account on Inorganic Reaction Mechanisms
In: Chemical Record (2023)
ISSN: 1527-8999
DOI: 10.1002/tcr.202300278 , , , , , , , , , , :
Mechanistic Insights into Superoxide Dismutation Driven by Dinuclear Manganese Complexes: The Role of the Mn2-Core
In: ACS Catalysis 13 (2023), p. 8561-8573
ISSN: 2155-5435
DOI: 10.1021/acscatal.3c01505 , , , , , , , , :
2022
Mechanistic insight on the water exchange mechanism of [Zn(tren)H2O](2+) and related complexes from a DFT study
In: Journal of Coordination Chemistry (2022)
ISSN: 0095-8972
DOI: 10.1080/00958972.2022.2068415 , , , :
Investigation of water substitution at Ru-II complexes by conceptual density function theory approach
In: Journal of Computational Chemistry (2022)
ISSN: 0192-8651
DOI: 10.1002/jcc.26878 , , , , , :
Dimorpholinoacetylene and Its Use for the Synthesis of Tetraaminocyclobutadiene Species
In: Chemistry - A European Journal (2022)
ISSN: 0947-6539
DOI: 10.1002/chem.202202737 , , , , :
25 years of NICS-much more than nothing!
In: Journal of the Serbian Chemical Society (2022)
ISSN: 0352-5139
DOI: 10.2298/JSC211203057P , , , , :
2021
A theoretical mechanistic study of [K ⊂ [2.2.2]]+ enantiomerization
In: Journal of Physical Organic Chemistry (2021)
ISSN: 0894-3230
DOI: 10.1002/poc.4289 , , , , , :
The proton sponge 1,8-bis(dimethylamino)naphthalene: The quicker-picker-upper also for s-block metal cations?
In: Chemical Physics Letters 777 (2021)
ISSN: 0009-2614
DOI: 10.1016/j.cplett.2021.138735 , , :
Tuning the lability of a series of Ru(II) polypyridyl complexes: a comparison of experimental-kinetic and DFT-predicted reaction mechanisms
In: Journal of Coordination Chemistry (2021)
ISSN: 0095-8972
DOI: 10.1080/00958972.2021.1874369 , , , , :
Assessment of biological activity of the caffeine-derived Pt (II) and Pd (II) complexes
In: Applied Organometallic Chemistry (2021)
ISSN: 0268-2605
DOI: 10.1002/aoc.6532 , , , , , , , , , :
Detailed Structural Examination, Quantum Mechanical Studies of the Aromatic Compound Solarimfetol and Formation of Inclusion Compound with Cucurbituril
In: Polycyclic Aromatic Compounds (2021)
ISSN: 1040-6638
DOI: 10.1080/10406638.2021.1937238 , , , , , , :
New mononuclear gold(III) complexes: Synthesis, characterization, kinetic, mechanistic, DNA/BSA/HSA binding, DFT and molecular docking studies
In: Polyhedron 209 (2021), Article No.: 115446
ISSN: 0277-5387
DOI: 10.1016/j.poly.2021.115446 , , , , , , , , :
Quinol-containing ligands enable high superoxide dismutase activity by modulating coordination number, charge, oxidation states and stability of manganese complexes throughout redox cycling
In: Chemical Science (2021)
ISSN: 2041-6520
DOI: 10.1039/d1sc02465e , , , , , , , , , , , :
[3.2.1] and [4.1.1] isomers of Lehn's [2.2.2] Cryptand: Prediction of ion selectivity by quantum chemical calculations XV**
In: Zeitschrift für Anorganische und Allgemeine Chemie (2021)
ISSN: 0044-2313
DOI: 10.1002/zaac.202000452 , , , , :
2020
The influence of the bridgehead in Saalfrank-type cryptands: prediction of ion selectivity by quantum chemical calculations XII
In: Journal of Coordination Chemistry (2020), p. 1-11
ISSN: 0095-8972
DOI: 10.1080/00958972.2020.1792455 , , , , :
Inorganic reaction mechanisms. A personal journey
In: Dalton Transactions 49 (2020), p. 4599-4659
ISSN: 1477-9226
DOI: 10.1039/c9dt04620h , , , , , , , , :
Wirt-Gast-Komplexe von [bfu.bfu.bfu]: Vorhersage von Ionenselektivitäten mittels quantenchemischer Rechnungen XIII
In: Zeitschrift für Naturforschung Section B-A Journal of Chemical Sciences 75 (2020), p. 769-775
ISSN: 0932-0776
DOI: 10.1515/znb-2020-0065 , :
Experimental and quantum chemical study оn the DNA/protein binding and the biological activity of a rhodium(iii) complex with 1,2,4-triazole as an inert ligand
In: Dalton Transactions (2020)
ISSN: 1477-9226
DOI: 10.1039/d0dt01343a , , , , , , :
Studies of the stability, nucleophilic substitution reactions, DNA/BSA interactions, cytotoxic activity, DFT and molecular docking of some tetra- and penta-coordinated gold(iii) complexes
In: New Journal of Chemistry 44 (2020), p. 11172-11187
ISSN: 1144-0546
DOI: 10.1039/d0nj02037k , , , , , , , :
Kinetics, mechanism and density functional theory calculations on base hydrolysis of α-amino acid esters catalyzed by [Pd(AEMP)(H2O)2]2+ (AEMP = 2-(2-aminoethyl)-1-methylpyrrolidine)
In: Reaction Kinetics Mechanisms and Catalysis (2020)
ISSN: 1878-5190
DOI: 10.1007/s11144-020-01734-7 , , , , , :
Noble guests in organic cages–encapsulation of noble gases by cryptophane
In: Journal of Coordination Chemistry (2020)
ISSN: 0095-8972
DOI: 10.1080/00958972.2020.1820494 , , :
Host-guest complexes of two isomeric 2,2’-bioxazole based {2}-lehn-type cryptands. Prediction of ion selectivity by quantum chemical calculations. Part XIV
In: Journal Macroheterocycles 13 (2020), p. 215-222
ISSN: 1998-9539
DOI: 10.6060/mhc200603p , , , , , :
2019
A mild and efficient procedure for alkenols oxyselenocyclization by using ionic liquids
In: Journal of Physical Organic Chemistry 32 (2019), Article No.: e3928
ISSN: 0894-3230
DOI: 10.1002/poc.3928 , , , , :
Synthesis of Camphor-Derived Bis(pyrazolylpyridine) Rhodium(III) Complexes: Structure-Reactivity Relationships and Biological Activity
In: Inorganic Chemistry 58 (2019), p. 307-319
ISSN: 0020-1669
DOI: 10.1021/acs.inorgchem.8b02390 , , , , , , , , , :
Mechanistic insight on the chemistry of potential Pt antitumor agents as revealed by collaborative research performed in Kragujevac and Erlangen
In: Inorganica Chimica Acta 495 (2019), Article No.: 118953
ISSN: 0020-1693
DOI: 10.1016/j.ica.2019.06.004 , , , :
Prediction of ion selectivity by quantum chemical calculations X: A recent (personal) review
In: Rudi van Eldik, Ralph Puchta (ed.): Computational Chemistry, Academic Press Inc., 2019, p. 445-505 (Advances in Inorganic Chemistry, Vol.73)
DOI: 10.1016/bs.adioch.2018.10.005 , , :
Host-Guest Complexes of Dodeka(ethylene)octamine: Prediction of Ion Selectivity by Quantum Chemical Calculations IX
In: Zeitschrift für Anorganische und Allgemeine Chemie 645 (2019), p. 701-705
ISSN: 0044-2313
DOI: 10.1002/zaac.201800448 , , , , :
Interactions of zinc(II) complexes with 5′-GMP and their cytotoxic activity
In: Journal of Coordination Chemistry 72 (2019), p. 690-706
ISSN: 0095-8972
DOI: 10.1080/00958972.2019.1569229 , , , , , , , :
Computational Chemistry Preface
In: Advances in Inorganic Chemistry 73 (2019), p. XIII-XV
ISSN: 0898-8838 , :
2018
New monofunctional platinum(II) and palladium(II) complexes: Studies of the nucleophilic substitution reactions, DNA/BSA interaction, and cytotoxic activity
In: Journal of Inorganic Biochemistry 189 (2018), p. 91-102
ISSN: 0162-0134
DOI: 10.1016/j.jinorgbio.2018.09.005 , , , , , , , , , , :
2017
Structure and reactivity of [Ru-II(terpy)(NN)Cl]Cl complexes: consequences for biological applications
In: Dalton Transactions 46 (2017), p. 10264-10280
ISSN: 1477-9226
DOI: 10.1039/c7dt01669g , , , , , , , , , :
Redox Behavior of a Dinuclear Ruthenium(II) Complex Bearing an Uncommon Bridging Ligand: Insights from High-Pressure Electrochemistry
In: Inorganic Chemistry 56 (2017), p. 14912-14925
ISSN: 0020-1669
DOI: 10.1021/acs.inorgchem.7b02192 , , , , , , :
Switching between inner- and outer-sphere PCET mechanisms of small-molecule activation: Superoxide dismutation and oxygen/superoxide reduction reactivity deriving from the same manganese complex
In: Journal of the American Chemical Society 139 (2017), p. 1472-1484
ISSN: 0002-7863
DOI: 10.1021/jacs.6b08394 , , , , , , , , , , , , :
Adaptive Behavior of Dynamic Orthoester Cryptands
In: Angewandte Chemie International Edition 56 (2017), p. 776-781
ISSN: 1433-7851
DOI: 10.1002/anie.201609855 , , , , , , , :
2016
Host-Guest Complexes of [TriPip222], the Piperazine Analogue of [2.2.2]: Prediction of Ion Selectivity by Quantum Chemical Calculations VIII[#]
In: Zeitschrift für Anorganische und Allgemeine Chemie 642 (2016), p. 395-402
ISSN: 0044-2313
DOI: 10.1002/zaac.201600019 , , , :
2015
Studies on the Reaction of Iron(II) with NO in a Noncoordinating Ionic Liquid
In: Inorganic Chemistry 54 (2015), p. 6763-6775
ISSN: 0020-1669
DOI: 10.1021/acs.inorgchem.5b00595 , , , , , :
Saalfrank-type {Fe2L3} host-guest complexes - Prediction of ion selectivity by quantum chemical calculations VII
In: Journal of Coordination Chemistry 68 (2015), p. 3374-3387
ISSN: 0095-8972
DOI: 10.1080/00958972.2015.1076806 , , :
2014
HCN exchange on [Cu(HCN)(4)](+): a quantum chemical investigation
In: Journal of Coordination Chemistry 67 (2014), p. 2185-2194
ISSN: 0095-8972
DOI: 10.1080/00958972.2014.941828 , , , , , :
2013
Coordination of terpyridine to Li+ in two different ionic liquids
In: Inorganic Chemistry 52 (2013), p. 13167-13178
ISSN: 0020-1669
DOI: 10.1021/ic4020724 , , , , , :
Reply to the Comment on the Article "Gutmann Donor and Acceptor Numbers for Ionic Liquids" (Chem. Eur. J. 2012, 18, 10969-10982) by J.-F. Gal and C. Laurence
In: Chemistry - A European Journal 19 (2013), p. 16835–16836,
ISSN: 0947-6539
DOI: 10.1002/chem.201302977 , , , , :
2012
Role of π-acceptor effects in controlling the lability of novel monofunctional Pt(II) and Pd(II) complexes: Crystal structure of [Pt(tripyridinedimethane)Cl]Cl
In: Inorganic Chemistry 51 (2012), p. 1516-1529
ISSN: 0020-1669
DOI: 10.1021/ic201807a , , , , , , , , :
Gutmann donor and acceptor numbers for ionic liquids
In: Chemistry - A European Journal 18 (2012), p. 10969-10982
ISSN: 0947-6539
DOI: 10.1002/chem.201200584 , , , , :
2011
Coordination of 1,10-phenanthroline and 2,2′-bipyridine to Li + in different ionic liquids. how innocent are ionic liquids?
In: Inorganic Chemistry 50 (2011), p. 6685-6695
ISSN: 0020-1669
DOI: 10.1021/ic200594e , , , , , :
Coordination of 1,10-phenanthroline and 2,2'-bipyridine to Li+ in different ionic liquids. How innocent are ionic liquids?
In: Inorganic Chemistry 50 (2011), p. 6685-6695
ISSN: 0020-1669
DOI: 10.1021/ic200594e , , , , , :
2010
Studies on an iron(iii)-peroxo porphyrin. Iron(iii)-peroxo or iron(ii)-superoxo?
In: Dalton Transactions 39 (2010), p. 2049-2056
ISSN: 1477-9226
DOI: 10.1039/b920237d , , , , , , , , , , , :
To Professor Rolf W. Saalfrank on the Occasion of his 70th birthday
In: Zeitschrift für Naturforschung 2010, 2010, p. 219 - 220 , :
Ligand exchange processes on solvated lithium cations. VI. Determination of coordination numbers by ligand substitution and 7Li NMR
In: Journal of the American Chemical Society 132 (2010), p. 7282-7284
ISSN: 0002-7863 , , , , :
2009
Is bis(trifluoromethylsulfonyl)amide an innocent anion? X-ray structure data and DFT calculations.
In: Dalton Transactions (2009), p. 2795-2801
ISSN: 1477-9226
DOI: 10.1039/b820940e , , , :
Chelate electronic properties control the redox behaviour and superoxide reactivity of seven-coordinate manganese(II) complexes
In: Dalton Transactions null (2009), p. 6292-6295
ISSN: 1477-9226
DOI: 10.1039/b906100m , , , , , :
The Effect of Perfluorination on the Aromaticity of Benzene and Heterocyclic Six-Membered Rings
In: Journal of Physical Chemistry A 113 (2009), p. 6789-6794
ISSN: 1520-5215
DOI: 10.1021/jp902983r , , , , , , , , :
2008
Experimental and computational studies of two new mono- and dinuclear iridium complexes containing a Buchwald biphenyl phosphine ligand
In: Inorganica Chimica Acta 361 (2008), p. 2623-2630
ISSN: 0020-1693
DOI: 10.1016/j.ica.2007.11.006 , , , :
Why do cationic hydridoiridium(III) complexes with β-aminophosphane ligands favour the transfer hydrogenation of ketones over the direct "H2-hydrogenation"? - A computational approach
In: Chemistry - A European Journal 14 (2008), p. 8898-8903
ISSN: 0947-6539
DOI: 10.1002/chem.200701921 , , :
Bicyclic diironcryptates with mobile guest cations: A new class of solid ionic conductors
In: Solid State Ionics 179 (2008), p. 489-494
ISSN: 0167-2738
DOI: 10.1016/j.ssi.2008.02.060 , , , , , , :
Template and pH-mediated synthesis of tetrahedral indium complexes [Cs
In: Angewandte Chemie-International Edition 47 (2008), p. 8941-8945
ISSN: 1433-7851
DOI: 10.1002/anie.200804225 , , , , , , , :
2007
Water exchange on seven-coordinate Mn(II) complexes with macrocyclic pentadentate ligands: Insight in the mechanism of Mn(II) SOD mimetics
In: Inorganic Chemistry 46 (2007), p. 2459-2470
ISSN: 0020-1669
DOI: 10.1021/ic061852o , , , , , :
Searching for stable, five-coordinate aquated Al(III) species. Water exchange mechanism and effect of pH
In: Inorganic Chemistry 46 (2007), p. 1112-1122
ISSN: 0020-1669
DOI: 10.1021/ic061284c , , , :
Ligand-exchange processes on solvated lithium cations: DMSO and water/DMSO mixtures
In: ChemPhysChem 8 (2007), p. 1315-1320
ISSN: 1439-4235
DOI: 10.1002/cphc.200600624 , , , , , :
Ligand Exchange Processes on Solvated Lithium Cations. II. Complexation by Cryptands in γ-Butyrolactone as Solvent
In: Journal of Inclusion Phenomena and Macrocyclic Chemistry 58 (2007), p. 81-88
ISSN: 0923-0750
DOI: 10.1007/s10847-006-9125-y , , , , , :
Ligand-exchange processes on solvated lithium cations: Acetonitrile and hydrogen cyanide
In: European Journal of Inorganic Chemistry null (2007), p. 1815-1822
ISSN: 1434-1948
DOI: 10.1002/ejic.200600930 , , , :
Ligand exchange processes on solvated lithium cations: Complexation by cryptands in acetone as solvent
In: European Journal of Inorganic Chemistry (2007), p. 3067-3076
ISSN: 1434-1948
DOI: 10.1002/ejic.200601169 , , , :
Ligand exchange processes on solvated lithium cations: Complexation by cryptands in acetone as solvent
In: European Journal of Inorganic Chemistry (2007), p. 3067-3076
ISSN: 1434-1948
DOI: 10.1002/ejic.200601169 , , , :
Seven-coordinate iron complex as a ditopic receptor for lithium salts: Study of host-guest interactions and substitution behavior
In: Inorganic Chemistry 46 (2007), p. 7848-7860
ISSN: 0020-1669
DOI: 10.1021/ic7005056 , , , , :
2006
Rational design of cation hosts - Prediction of cation selectivity by quantum chemical calculations
In: Zeitschrift für Physikalische Chemie-International Journal of Research in Physical Chemistry & Chemical Physics 220 (2006), p. 511-523
ISSN: 0942-9352
DOI: 10.1524/zpch.2006.220.4.511 , , , :
The formation of endo-complexes between calixarenes and amines - a reinvestigation
In: Journal of Molecular Modeling 12 (2006), p. 739-747
ISSN: 1610-2940
DOI: 10.1007/s00894-005-0079-6 , , :
Protons on tour - DFT-study of H+-migration in [1.1.1]- and [2.2.2]-cryptands
In: Zeitschrift für Naturforschung Section B-A Journal of Chemical Sciences 61 (2006), p. 1327-1334
ISSN: 0932-0776
DOI: 10.1515/znb-2006-1103 , , :
Quantum chemical analysis of the enantiomerisation mechanism of complexes of the type [M-II(XU)(4)]F+ (M = Pt, Pd, Ni; X = S, Se, Te; U = urea)
In: European Journal of Inorganic Chemistry (2006), p. 4063-4067
ISSN: 1434-1948
DOI: 10.1002/ejic.200600483 , , , :
A new enantiomerization mechanism for tripodal penta-coordinate Zn-II(nta) complexes. Theoretical clarification of the observed H-1 NMR spectrum
In: Dalton Transactions (2006), p. 3392-3395
ISSN: 1477-9226
DOI: 10.1039/b602792j , , , :
Thermodynamic and kinetic studies on reactions of Pt(II) complexes with biologically relevant nucleophiles
In: Inorganic Chemistry 45 (2006), p. 2948-2959
ISSN: 0020-1669
DOI: 10.1021/ic051955r , , , , :
2005
Investigation of a putative Mobius aromatic hydrocarbon. The effect of benzannelation on Mobius [4n]annulene aromaticity
In: Journal of the American Chemical Society 127 (2005), p. 2425-2432
ISSN: 0002-7863
DOI: 10.1021/ja0458165 , , , , , , , , :
Mechanistic studies on the formation of Pt(II) hydroformylation catalysts in imidazolium-based ionic liquids
In: Journal of Organometallic Chemistry 690 (2005), p. 3567-3576
ISSN: 0022-328X
DOI: 10.1016/j.jorganchem.2005.03.029 , , , , , :
Evidence for interchange ligand-exchange processes on solvated beryllium cations
In: Helvetica Chimica Acta 88 (2005), p. 911-922
ISSN: 0018-019X
DOI: 10.1002/hlca.200590085 , , :
Influence of the conformation of salen complexes on the stereochemistry of the asymmetric epoxidation of olefins
In: European Journal of Organic Chemistry (2005), p. 2566-2574
ISSN: 1434-193X
DOI: 10.1002/ejoc.200500042 , , , , , , , :
Experimental and theoretical approaches to the protonation of thiourea: A convenient nucleophile in coordination chemistry revisited
In: Zeitschrift für Anorganische und Allgemeine Chemie 631 (2005), p. 2812-2819
ISSN: 0044-2313
DOI: 10.1002/zaac.200500157 , , , , , , , :
Transition-state effects of ionic liquids in substitution reactions of Pt-II complexes
In: Angewandte Chemie International Edition 44 (2005), p. 6033-6038
ISSN: 1433-7851
DOI: 10.1002/anie.200501329 , , , , :
2004
Deuteration effects on the vibronic structure of the fluorescence spectra and the internal conversion rates of triangular [4]phenylene
In: Physical Chemistry Chemical Physics 6 (2004), p. 5476-5483
ISSN: 1463-9076
DOI: 10.1039/b414545c , , , , , , , , , , :
Evidence for associative ligand exchange processes on solvated lithium cations
In: Inorganic Chemistry 43 (2004), p. 8227-8229
ISSN: 0020-1669
DOI: 10.1021/ic0487979 , , , , :
Synthesis, structure, and dynamics of six-membered metallacoronands and metallodendrimers of iron and indium
In: Chemistry - A European Journal 10 (2004), p. 1899-1905
ISSN: 0947-6539
DOI: 10.1002/chem.200306050 , , , , , , , , , , , :
Desymmetrisation of C-2-symmetric (2S,3S)-diazidobutane-1,4-diol with benzaldehyde
In: Tetrahedron-Asymmetry 15 (2004), p. 867-872
ISSN: 0957-4166
DOI: 10.1016/j.tetasy.2004.01.027 , , , , , , , :
2003
Shpol'skii spectroscopy and vibrational analysis of [N]phenylenes
In: Physical Chemistry Chemical Physics 5 (2003), p. 4563-4569
ISSN: 1463-9076
DOI: 10.1039/b308036f , , , , , , , , , , :
2002
A domino aldol addition/hemiketal formation/hemiketal formation/epimerization route to a heteroadamantane. A crystal-structure, NMR, and computational study
In: Helvetica Chimica Acta 85 (2002), p. 3828-3841
ISSN: 0018-019X
DOI: 10.1002/1522-2675(200211)85:113.0.CO;2-Z , , , , , , , :
2001
Dissected nucleus-independent chemical shift analysis of pi-aromaticity and antiaromaticity
In: Organic Letters 3 (2001), p. 2465-2468
ISSN: 1523-7060
DOI: 10.1021/ol016217v , , , , , , :
2000
Exploring {2}-metallacryptands and {2}-metallacryptates with quantum chemical methods - When (not only) computer chemists' dreams come true
In: Journal of Molecular Modeling 6 (2000), p. 126-132
ISSN: 0948-5023 , , , :