• Röntgen- und Neutronenbeugung an Pulvern und Einkristallen
• Ionenleitung in Festkörpern
• Synthese ionischer Festkörper

• Vorlesung „Einführung in die Allgemeine und Anorganische Chemie für Nebenfachstudierende”
• Seminar „Einführung in die Allgemeine und Anorganische Chemie für Nebenfachstudierende”
• Praktikum „Einführung in die Allgemeine und Anorganische Chemie für Nebenfachstudierende”
• Vorlesung „Strukturchemie”

• Spin-Crossover in Metallkomplexen
• Computer in der Chemie
• Rechtliche Aspekte der Chemie
• Chancengleichheit und Diversity

• Hybrid Perovskite at Full Tilt: Structure and Symmetry Relations of the Incommensurately Modulated Phase of Methylammonium Lead Bromide, MAPbBr₃
  D. Wiedemann, J. Breternitz, D. W. Paley, S. Schorr,
  J. Phys. Chem. Lett. 2021, 12, 2358–2362.
  
  
• Synthesis and Doping Strategies to Improve the Photoelectrochemical Water Oxidation Activity of BiVO₄ Photoanodes
  M. Rohloff, B. Anke, D. Wiedemann, A. C. Ulpe, O. Kasian, S. Zhang, C. Scheu, T. Bredow, M. Lerch, A. Fischer,
  Z. Phys. Chem. 2020, 234, 655–682.
  
  
• And Yet It Moves: A High-Temperature Neutron Diffraction Study of Ion Diffusion in the Inverse Perovskites BaLiX₃ (X = F, H, D)
  D. Wiedemann, E. M. Heppke, A. Franz,
  Eur. J. Inorg. Chem. 2019, 5085–5088.
  
  
• Structural complexities and sodium-ion diffusion in the intercalates Na_xTiS₂: move it, change it, re-diffract it
  D. Wiedemann, E. Suard, M. Lerch,
  RSC Adv. 2019, 9, 27780–27788.
  
  
• Synthesis, characterization, and crystal structure of aquabis(4,4'-dimethoxy-2,2'-bipyridine)[µ-(2R,3R)-tartrato(4–)]dicopper(II) octahydrate
  D. Wiedemann, R.-D. Kulko, A. Grohmann,
  Acta Crystallogr., Sect. E: Crystallogr. Commun. 2019, 75, 972–975.
  
  
• Commensurate Nb₂Zr₅O₁₅: Accessible Within the Field Nb₂Zr_xO_2x+5 After All
  D. Wiedemann, S. Orthmann, M. J. Mühlbauer, M. Lerch,
  ChemistryOpen 2019, 8, 447–450.
  
  
• The inverse perovskite BaLiF₃: single-crystal neutron diffraction and analyses of potential ion pathways
  D. Wiedemann, F. Meutzner, O. Fabelo, S. Ganschow,
  Acta Crystallogr., Sect. B: Struct. Sci., Cryst. Eng. Mater. 2018, 74, 643–650.
  
  
• At the Gates: The Tantalum-Rich Phase Hf₃Ta₂O₁₁ and its Commensurately Modulated Structure
  D. Wiedemann, T. Lüdtke, L. Palatinus, E. Willinger, M. G. Willinger, M. J. Mühlbauer, M. Lerch,
  Inorg. Chem. 2018, 57, 14435–14442.
  
  
• Structural Dynamics of Spin Crossover in Iron(II) Complexes with Extended-Tripod Ligands
  P. Stock, D. Wiedemann, H. Petzold, G. Hörner,
  Inorganics 2017, 5, 60.
  
  
• Invariom-model refinement and Hirshfeld surface analysis of well-ordered solvent-free dibenzo-21-crown-7
  D. Wiedemann, J. Kohl,
  Acta Crystallogr., Sect. C: Struct. Chem. 2017, 73, 654–659.
  
  
• Diffusion Pathways and Activation Energies in Crystalline Lithium-Ion Conductors
  D. Wiedemann, M. M. Islam, T. Bredow, M. Lerch,
  Z. Phys. Chem. 2017, 231, 1279–1302.
  
  
• HP-MoO₂: A High-Pressure Polymorph of Molybdenum Dioxide
  T. Lüdtke, D. Wiedemann, I. Efthimiopoulos, N. Becker, S. Seidel, O. Janka, R. Pöttgen, R. Dronskowski, M. Koch-Müller, M. Lerch,
  Inorg. Chem. 2017, 56, 2321–2327.
  
  
• Lithium diffusion pathways in metastable ramsdellite-like Li₂Ti₃O₇ from high-temperature neutron diffraction
  D. Wiedemann, S. Nakhal, A. Franz, M. Lerch,
  Solid State Ionics 2016, 293, 37–43.
  
  
• LiBi₃S₅—A Lithium Bismuth Sulfide with Strong Cation Disorder
  S. Nakhal, D. Wiedemann, B. Stanje, O. Dolotko, M. Wilkening, M. Lerch,
  J. Solid State Chem. 2016, 238, 60–67.
  
  
• Unravelling Ultraslow Lithium-Ion Diffusion in γ-LiAlO₂: Experiments with Tracers, Neutrons, and Charge Carriers
  D. Wiedemann, S. Nakhal, J. Rahn, E. Witt, M. M. Islam, S. Zander, P. Heitjans, H. Schmidt, T. Bredow, M. Wilkening, M. Lerch,
  Chem. Mater. 2016, 28, 915–924.
  
  
• Single-crystal neutron diffraction on γ-LiAlO₂: structure determination and estimation of lithium diffusion pathway
  D. Wiedemann, S. Indris, M. Meven, B. Pedersen, H. Boysen, R. Uecker, P. Heitjans, M. Lerch,
  Z. Kristallogr. – Cryst. Mater. 2016, 231, 189–193.
  
  
• Controlled ligand distortion and its consequences for structure, symmetry, conformation and spin-state preferences of iron(II) complexes
  N. Kroll, K. Theilacker, M. Schoknecht, D. Baabe, D. Wiedemann, M. Kaupp, A. Grohmann, G. Hörner,
  Dalton Trans. 2015, 44, 19232–19247.
  
  
• Ternary transition-metal fluoride precursors for the fluorolytic sol–gel route: new insights into speciation and decomposition
  J. Kohl, D. Wiedemann, S. Troyanov, E. Palamidis, M. Lerch,
  Dalton Trans. 2015, 44, 13272–13281.
  
  
• Spin-state dynamics of a photochromic iron(II) complex and its immobilization on oxide surfaces via phenol anchors
  P. Stock, N. Spintig, J. Scholz, J. D. Epping, C. Oelsner, D. Wiedemann, A. Grohmann, G. Hörner,
  J. Coord. Chem. 2015, 68, 3099–3115.
  
  
• Lithium Diffusion Pathways in 3R-Li_xTiS₂: A Combined Neutron Diffraction and Computational Study
  D. Wiedemann, M. M. Islam, S. Nakhal, A. Senyshyn, T. Bredow, M. Lerch,
  J. Phys. Chem. C 2015, 119, 11370–11381.
  
  
• The High-Temperature Transformation from 1T- to 3R-Li_xTiS₂ (x = 0.7, 0.9) as Observed in situ with Neutron Powder Diffraction
  D. Wiedemann, S. Nakhal, A. Senyshyn, T. Bredow, M. Lerch,
  Z. Phys. Chem. 2015, 229, 1275–1288.
  
  
• Thiocyanate Anchors for Salt-like Iron(II) Complexes on Au(111): Promises and Caveats
  P. Stock, A. Erbe, M. Buck, D. Wiedemann, H. Ménard, G. Hörner, A. Grohmann,
  Z. Naturforsch., B: J. Chem. Sci. 2014, 69, 1164–1180.
  
  
• Slowly But Surely—Pathways of Ultraslow Lithium Diffusion in γ-LiAlO₂
  D. Wiedemann, S. Nakhal, S. Zander, M. Lerch,
  Z. Anorg. Allg. Chem. 2014, 640, 2342.
  
  
• X Marks the Path—Lithium Diffusion Pathways in 3R-Li_xTiS₂
  D. Wiedemann, S. Nakhal, A. Senyshyn, M. Lerch,
  Z. Anorg. Allg. Chem. 2014, 640, 2342.
  
  
• 3d- and 4d-Metal(II) Complexes of a Tris(pyridyl)ethane-­Derived N₄ Ligand – A Structural Study and Reactivity ­Remarks
  D. Wiedemann, A. Grohmann,
  Z. Anorg. Allg. Chem. 2014, 640, 1632–1640.
  
  
• Bulk spin-crossover in the complex [FeL(NCS)₂] of a tris(pyridyl)ethane-derived N₄-ligand—A temperature-dependent crystallographic study
  D. Wiedemann, A. Grohmann,
  Dalton Trans. 2014, 43, 2406–2417.
  
  
• (OC-6-13)-Difluoridooxidobis(propan-2-ol)(propan-2-olato)vanadium(V)
  J. Kohl, D. Wiedemann,
  Acta Crystallogr., Sect. C: Cryst. Struct. Commun. 2013, 69, 1482–1484.
  
  
• Copper(I) and Iron(II) Complexes of a Novel Tris(pyridyl)­ethane-Derived N₄ Ligand: Aspects of Redox Behaviour and Bioinorganic Physicochemistry
  D. Wiedemann, E. Świętek, W. Macyk, A. Grohmann,
  Z. Anorg. Allg. Chem. 2013, 649, 1483–1490.
  
  
• Iron(II) Complexes of Two Amine/Imine N₅ Chelate Ligands Containing a 1,4-Diazepane Core – To Crossover or Not To Crossover
  M. Schmidt, D. Wiedemann, B. Moubaraki, N. F. Chilton, K. S. Murray, K. R. Vignesh, G. Rajaraman, A. Grohmann,
  Eur. J. Inorg. Chem. 2013, 958–967.
  
  
• Spin Crossover in a Vacuum-Deposited Submonolayer of a Molecular Iron(II) Complex
  M. Bernien, D. Wiedemann, C. F. Hermanns, A. Krüger, D. Rolf, W. Kroener, P. Müller, A. Grohmann, W. Kuch,
  J. Phys. Chem. Lett. 2012, 3, 3431–3434.
  
  
• Synthesis of Ternary Transition Metal Fluorides Li₃MF₆ via a Sol–Gel Route as Candidates for Cathode Materials in Lithium-Ion Batteries
  J. Kohl, D. Wiedemann, S. Nakhal, P. Bottke, N. Ferro, T. Bredow, E. Kemnitz, M. Wilkening, P. Heitjans, M. Lerch,
  J. Mater. Chem. 2012, 22, 15819–15827.
  
  
• Copper Complexes of “Superpodal” Amine Ligands and Reactivity Studies towards Dioxygen
  A. Jozwiuk, E. A. Ünal, S. Leopold, J. P. Boyd, M. Haryono, N. Kurowski, F. V. Escobar, P. Hildebrandt, J. Lach, F. W. Heinemann, D. Wiedemann, E. Irran, A. Grohmann,
  Eur. J. Inorg. Chem. 2012, 3000–3013.
  
  
• Efficient Synthesis of Pentakis- and Tris(pyridine) Ligands
  E. A. Ünal, D. Wiedemann, J. Seiffert, J. P. Boyd, A. Grohmann,
  Tetrahedron Lett. 2012, 53, 54–55.
  
  
• First-Row Transition Metal Complexes of a Novel Pentadentate Amine/Imine Ligand Containing a Hexahydropyrimidine Core
  M. Schmidt, D. Wiedemann, A. Grohmann,
  Inorg. Chim. Acta 2011, 374, 514–520.
  
  
• Bond Activation in Iron(II) and Nickel(II) Complexes of Polypodal Phosphane
  S.-A. Gentschow, S. W. Kohl, W. Bauer, F. W. Heinemann, D. Wiedemann, A. Grohmann,
  Z. Naturforsch., B: Chem. Sci. 2010, 65, 238–250.
  
  
• „... und ehrt mir ihre Kunst!” – Evaluierung historischer und neuer Synthesewege zu 1,5-Dihydroxy-6-oxo-1,6-dihydropyridin-2-carbonsäure und 1,3-Dihydroxy-2-oxo-3-pyrrolin-4-carbonsäure
  D. Wiedemann, A. Grohmann,
  Z. Naturforsch., B: Chem. Sci. 2009, 64, 1276–1288.
  
  
• Substituted Bisphosphanylamines as Ligands in Gold(I) Chemistry—Synthesis and Structures
  D. Wiedemann, M. T. Gamer, P. W. Roesky,
  Z. Anorg. Allg. Chem. 2009, 635, 125–129.

Aktuelle Version

• CalcOPP – A Program for the Calculation of Effective One-Particle Potentials (OPPs)
  D. Wiedemann, Technische Universität Berlin, Berlin (Germany), 2021, doi:10.5281/zenodo.2530345.
  
  

Frühere Versionen

• CalcOPP 1.6.1 – Calculation of 2D OPP from PDF Data
  D. Wiedemann, Technische Universität Berlin, Berlin (Germany), 2015, doi:10.6084/m9.figshare.1461721.
  
  
• CalcOPP-3D 1.0 – Calculation of 3D OPP from PDF Data
  D. Wiedemann, Technische Universität Berlin, Berlin (Germany), 2018, doi:10.6084/m9.figshare.57981301.

• Aus Null mach Eins – Schaltbare Komplexe neuartiger pyridinbasierter Podanden
  D. Wiedemann, Dissertation, Technische Universität Berlin, 2013, doi:10.14279/depositonce-3495.