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Publications

2020

57. T. Hoelzel, M. Terzi, L. Stenzel, M. Gernert, C. Marian,* A. Steffen,* C. Ganter*
„Linear carbene pyridine copper complexes with sterically demanding N,N´-bis(trityl)imidazolylidene: Syntheses, molecular structures and photophysical properties”
2020, eingereicht.

56. X. Ma, J. Maier, M. Wenzel, A. Friedrich, A. Steffen, T. B. Marder, R. Mitric, T. Brixner
„Direct observation of o-benzyne formation in photochemical hexadehydro-Diels–Alder (hν-HDDA) reactions”
2020, eingereicht.

55. M. Gernert, L. Balles-Wolf, F. Kerner, U. Müller, A. Schmiedel, M. Holzapfel, C. M. Marian, J. Pflaum, C. Lambert, A. Steffen*
„Cyclic (amino)(aryl)carbenes (CAArCs) enter the field of chromophore ligands - Expanded π system leads to unusually deep red emitting CuI compounds”
J. Am. Chem. Soc. 2020, 142, 8897.

54. R. Giereth, A. K. Mengele, W. Frey, M. Kloß, A. Steffen, M. Karnahl, S. Tschierlei
„Copper(I) Phosphinooxazoline Complexes: Impact of the Ligand Substitution and Sterical Demand on the Electrochemical and Photophysical Properties”
Chem. Eur. J. 2020, 26, 2675.

2019

53. A. Steffen*, B. Hupp
„Design of efficient emissive materials”
Comprehensive Coordination Chemistry III 2019 (Buchkapitel), in Druck.

52. M. Hailmann, B. Hupp, A. Himmelspach, F. Keppner, P. T. Hennig, R. Bertermann, A. Steffen*, M. Finze*
„Carba-closo-dodecaboranylethynyl ligands facilitating luminescent reversed charge-transfer excited states in gold/silver complexes“
Chem. Commun. 2019, 55, 9351.

51. J. Merz, A. Steffen, J. Nitsch, J. Fink, C. B. Schürger, A. Friedrich, I. Krummenacher, H. Braunschweig, M. Moos, D. Mims, C. Lambert, T. B. Marder*
„Synthesis, Photophysical and Electronic Properties of Tetra-Donor- or Acceptor-Substituted ortho-Perylenes Displaying Four Reversible Oxidations or Reductions“
Chem. Sci. 2019, 10, 7516.

50. A. Liske, L. Wallbaum, T. Hölzel, J. Föller, M. Gernert, B. Hupp, C. Ganter*, C. M. Marian*, A. Steffen*
„Cu-F Interactions between cationic linear NHC-Cu(I)-Pyridine Complexes and their Counterions greatly enhance blue Luminescence Efficiency“
Inorg. Chem. 2019, 58, 5433.

49. J. Föller, C. Ganter, A. Steffen, C. M. Marian*
„Computer-Aided Design of Luminescent Linear NHC Cu(I) Pyridine Complexes“
Inorg. Chem. 2019, 58, 5446.

48. D. R. Chisholm, R. Lamb, T. Pallett, V. Affleck, C. Holden, J. Marrison, P. O’Toole, P. D. Ashton, K. Newling, A. Steffen, A. K. Nelson, C. Mahler, R. Valentine, T. S. Blacker, A. J. Bain, J. Girkin*, T. B. Marder*, A. Whiting*, C. A. Ambler*
"Photoactivated cell-killing involving a low molecular weight, donor-acceptor diphenylacetylene"
Chem. Sci. 2019, 10, 4673.

47. T. E. Stennett, P. Bissinger, S. Griesbeck, S. Ullrich, I. Krummenacher, M. Auth, A. Sperlich, M. Stolte, K. Radacki, C.-J. Yao, F. Würthner, A. Steffen, T. B. Marder*, H. Braunschweig* 
"Near-infrared quadrupolar chromophores combining three-coordinate boron-based superdonor and-acceptor units”
Angew. Chem. Int. Ed. 201958, 6449.

2018

46. B. Hupp, J. Nitsch, T. Schmitt, R. Bertermann, K. Edkins, F. Hirsch, I. Fischer, M. Auth, A. Sperlich, A. Steffen*
"Stimulus‐Triggered Formation of an Anion–Cation Exciplex in Copper(I) Complexes as a Mechanism for Mechanochromic Phosphorescence”
Angew. Chem. Int. Ed. 2018, 57, 13671.

45. Y. Tian, X.-N. Guo*, M. Kuntze-Fechner, I. Krummenacher, H. Braunschweig, U. Radius*, A. Steffen*, T. B. Marder*
"Selective Photocatalytic C-F Borylation of Polyfluoroarenes by Rh/Ni Dual Catalysis Providing Valuable Fluorinated Arylboronate Esters”
J. Am. Chem. Soc. 2018, 140, 17612.

44. J. G. de Pablo, D. R. Chisholm, A. Steffen, A. K. Nelson, C. Mahler, T. B. Marder, S. A. Peyman, J. M. Girkin, C. A. Ambler, A. Whiting, S. D. Evans*
“Tandem fluorescence and Raman (fluoRaman) characterisation of a novel photosensitiser in colorectal cancer cell line SW480”
Analyst 2018, 143, 6113.

2017

43. B. Hupp, C. Schiller, C. Lenczyk, M. Stanoppi, K. Edkins, A. Lorbach, A. Steffen*
"Synthesis, structures and photophysical properties of a series of rare near-IR emitting copper(I) complexes”
Inorg. Chem. 2017, 56, 8996.
 

42. J. Merz, J. Fink, A. Friedrich, I. Krummenacher, H. Al Mamari, S. Lorenzen, M. Hähnel, A. Eichhorn, M. Moos, M. Holzapfel, H. Braunschweig, C. Lambert, A. Steffen, L. Ji*, T. B. Marder*
"Pyrene MO Shuffle - Controlling Excited State and Redox Properties by Changing the Nature of the Frontier Orbitals"
Chem. - Eur. J. 2017, 23, 13164.
 

41. M. Hailmann, N. Wolf, R. Renner, B. Hupp, A. Steffen*, M. Finze*
"Silver(I) Clusters with Carba-closo-dodecaboranylethynyl Ligands: Synthesis, Structure, and Phosphorescence”
Chem. - Eur. J. 2017, 23, 11684.
 

40. H. Braunschweig*, T. Dellermann, R. Dewhurst, B. Hupp, T. Kramer, J. Mattock, J. Mies, A. Phukan, A. Steffen*, A. Vargas
"Strongly Phosphorescent Transition Metal pi Complexes of Boron-Boron Triple Bonds”
J. Am. Chem. Soc. 2017, 139, 4887.
 

39. E. Hobbollahi, M. List, B. Hupp, F. Mohr, R. J. F. Berger*, A. Steffen*, U. Monkowius*
"Highly efficient cold-white light emission in a [Au2CuCl2(PN)2]PF6 type salt”
Dalton Trans. 2017, 46, 3438.(HOT Paper)
 

38. C. Sieck, D. Sieh, M. Sapotta, M. Haehnel, K. Edkins, A. Lorbach, A. Steffen, T. B. Marder*
"Convenient Synthetic Access to Fluorescent Rhodacyclopentadienes via Ligand Exchange Reactions”
J. Organomet. Chem. 2017, 847, 184.
 

37. M. Gernert, U. Müller, M. Haehnel, J. Pflaum, A. Steffen*
"A Cyclic Alkyl(Amino)Carbene as Two-Atom-pi-Chromophore Leading to the First Phosphorescent Linear Cu(I) Complexes”
Chem. - Eur. J. 2017, 23, 2206.
 

36. J. Nitsch, L. P. Wolters, C. Fonseca Guerra, F. M. Bickelhaupt*, A. Steffen*
"Unusually High Coordination Numbers in d10-[M(NHC)n] Complexes Through Enhanced pi-Back Donation. A DFT Study”
Chem. - Eur. J. 2017, 23, 614.

2016

35. Z. Zhang, Z. Wang, M. Haehnel, A. Eichhorn, R. M. Edkins, A. Steffen, A. Krüger*, Z. Lin*, T. B. Marder*
"Synthesis and Fluxional Behaviour of Novel Chloroborole Dimers”
Chem. Commun. 2016, 52, 9707.
 

34. M. Hailmann, N. Wolf, R. Renner, T. C. Schäfer, B. Hupp, A. Steffen*, M. Finze*
"Unprecedented Efficient Structure Controlled Phosphorescence of Silver(I) Clusters Stabilized by Carba-closo-dodecaboranylethynyl Ligands”
Angew. Chem. 2016, 55, 10507.
 

33. N. Dannenbauer, P. R. Matthes, T. P. Scheller, J. Nitsch, S. H. Zottnick, M. S. Gernert, A. Steffen, C. Lambert, K. Müller-Buschbaum*
"Near Infrared Luminescence and Inner Filter Effects of Lanthanide Coordination Polymers with 1,2-Di(4-pyridyl)ethylene”
Inorg. Chem. 2016, 55, 7396.
 

32. C. Sieck, M. G. Tay, M.-H- Thibault, R. M. Edkins, K. Costuas, J.-F. Halet, A. S. Batsanov, M. Haehnel, K. Edkins, A. Lorbach, A. Steffen, T. B. Marder*
"Reductive Coupling of Diynes at Rhodium Gives Fluorescent Rhodacyclopentadienes or Phosphorescent Rhodium 2,2´-Biphenyl Complexes”
Chem. Eur. J. 2016, 22, 10523.
 

31. R. Molteni, R. Bertermann, K. Edkins, A. Steffen*
“An Unexpected Transmetalation Intermediate: Isolation and Structural Characterization of a Solely CH3 Bridged Di-Copper(I) Complex”
Chem. Commun. 2016, 52, 5019.
 

30. R. Molteni, K. Edkins, M. Haehnel, A. Steffen*
“C-H Activation of Fluoroarenes: Synthesis, Structure, and Luminescence Properties of Copper(I) and Gold(I) Complexes Bearing 2-Phenylpyridine Ligands”
Organometallics 2016, 35, 629.
 

29. J. Nitsch, F. Lacemon, A. Lorbach, A. Eichhorn, F. Cisnetti*, A. Steffen*
“Cuprophilic Interactions in Highly Luminescent Dicopper(I)-NHC-picolyl Complexes – Fast Phosphorescence or TADF?”
Chem. Commun. 2016, 52, 2932.

2015

28. S.S. Mondal, K. Behrens, P.R. Matthes, F. Schönfeld, J. Nitsch, A. Steffen, P.-A. Primus, M.U. Kumke, K. Müller-Buschbaum*, H.-J. Holdt*
"White Light Emission of IFP-1 by In-Situ Co-Doping with Eu3+ and Tb3+"
J. Mater. Chem. C 2015, 3, 4623.
 

27. J. Nitsch, C. Kleeberg, R. Fröhlich, A. Steffen*
"Luminescent Cu(I) Halide and Pseudohalide Phenanthroline Complexes Revisited: Simple Structures, Complicated Excited State Behavior"
Dalton Trans. 2015, 44, 6944.
 

26. P. Bissinger, A. Steffen*, A. Vargas, R.D. Dewhurst, A. Damme, H. Braunschweig*
"Unprecedented Luminescence Behavior of Coinage Metal pi-Diborene Complexes"
Angew. Chem. Int. Ed. 2015, 54, 4362.
 

25. M. Schulze, A. Steffen*, F. Würthner*
"Near-IR Phosphorescent Ruthenium(II) and Iridium(III) Perylene Bisimide Metal Complexes"
Angew. Chem. Int. Ed. 2015, 54, 1570.
 

24. A. Steffen*
Tagungsbericht “16. Fluortag – Fluorchemiker treffen sich in Schmitten”
Nach­richten der Chemie, 2015, 63, 68.
 

23. H. Braunschweig*, S. Ghosh, J.O.C. Jimenez-Halla, J.H. Klein, C. Lambert, K. Radacki, A. Steffen, A. Vargas, J. Wahler
"A Combined Experimental and Theoretical Study on the Isomers of 2,3,4,5-Tetracarba-nido-Hexaborane(6) Derivatives and Their Photophysical Properties"
Chem. Eur. J. 2015, 21, 210.
 

22. Z. Zhang, R.M. Edkins, J. Nitsch, K. Fucke, A. Eichhorn, A. Steffen, Y. Wang, T.B. Marder*
“Triarylboron Compounds with Tunable Push–Pull Character Achieved by Modification of Both the Donor and Acceptor Moieties”
Chem. Eur. J. 2015, 21, 177. (VIP).
 

21. F. Hering, J. Nitsch, U. Paul, A. Steffen, F.M. Bickelhaupt*, U. Radius*
“Bite-Angle Bending as a Key for Understanding Group-10 Metal Reactivity of d10-[M(NHC)2] Complexes with Sterically Modest NHC Ligands”
Chem. Sci. 2015, 6, 1426.
 

20. Z. Zhang, R.M. Edkins, J. Nitsch, K. Fucke, A. Steffen, L.E. Longobardi, D.W. Stephan, C. Lambert, T.B. Marder*
"Optical and Electronic Properties of Air-Stable Organoboron Compounds with Strongly Electron-Accepting Bis(fluoromesityl)boryl Groups"
Chem. Sci. 2015, 6, 308.

2014

19. P. Roesch, J. Nitsch, M. Lutz, J. Wiecko, A. Steffen*, C. Müller*
"Synthesis and Photoluminescence Properties of an Unprecedented Phosphinine-Cu4Br4 Cluster"
Inorg. Chem. 2014, 53, 9855.
 

18. J. Heine, T. Wehner, R. Bertermann, A. Steffen, K. Müller-Buschbaum*
"2(∞)[Bi2Cl6(pyz)4]: A 2D-Pyrazine Coordination Polymer as Soft Host Lattice for the Luminescence of the Lanthanide Ions Sm3+, Eu3+, Tb3+. and Dy3+"
Inorg. Chem. 2014, 53, 7055.
 

17. A. Steffen*, K. Costuas*, A. Boucekkine, M.-H. Thibault, A. Beeby, A. S. Batsanov, A. Charaf-Eddin, D. Jacquemin, J.-F. Halet*, T. B. Marder*
"Fluorescence in Rhoda- and Iridacyclopentadienes Neglecting the Spin-Orbit Coupling of the Heavy Atom: The Ligand Dominates"
Inorg. Chem. 2014, 53, 7055.
 

16. A. Steffen, R. M. Ward, M. G. Tay, R. M. Edkins, F. Seeler, M. van Leeuwen, L. O. Pålsson, A. Beeby, A. S. Batsanov, J. A. K. Howard, T. B. Marder*
"Regiospecific Formation and Unusual Optical Properties of 2,5-Bis(arylethynyl)-rhodacyclopentadienes: A New Class of Luminescent Organometallics"
Chem. Eur. J. 2014, 20, 3652.
 

15. I. Kitanovic, S. Can, H. Alborzinia, A. Kitanovic, V. Pierroz, A. Leonidova, A. Pinto, B. Spingler,S. Ferrari,R. Molteni, A. Steffen*, N. Metzler-Nolte*, S. Wölfl*, G. Gasser*
"A Deadly Luminescent Probe: Anticancer Activity of a Re Bisquinoline Complex"
Chem. Eur. J. 2014, 20, 2496. (Highlighted in ChemistryViews)

2013

14. P. R. Matthes, J. Nitsch, A. Kuzmanoski, C. Feldmann, A. Steffen, T. B. Marder, K. Müller-Buschbaum*
"The Series of Rare Earth Complexes [Ln2Cl6(μ-4,4'-bipy)(py)6], Ln=Y, Pr, Nd, Sm-Yb: A Molecular Model System for Luminescence Properties in MOFs Based on LnCl3 and 4,4'-Bipyridine"
Chem. Eur. J. 2013, 19, 17369.
 

13. J.-C. Rybak, M. Hailmann, P. R. Matthes, A. Zurawski, J. Nitsch, A. Steffen, J. G. Heck, C. Feldmann, S. Götzendörfer, J. Meinhardt, G. Sextl, H. Kohlmann, S. J. Sedlmaier, W. Schnick, K. Müller-Buschbaum*
"Metal-Organic Framework Luminescence in the Yellow Gap by Codoping of the Homoleptic Imidazolate 3(∞)[Ba(Im)2] with Divalent Europium"
J. Am. Chem. Soc. 2013, 135, 6896.

2012

12. A. G. Crawford, Z. Liu, I. A. I. Mkhalid, M.-H. Thibault, N. Schwarz, G. Alcaraz, A. Steffen, J. C. Collings, A. S. Batsanov, J. A. K. Howard, T. B. Marder*
"Synthesis of 2- and 2,7-Functionalized Pyrene Derivatives: An Application of Selective C-H Borylation"
Chem. Eur. J. 2012, 18, 5022.

2011

11. A. G. Crawford, A. D. Dwyer, Z. Liu, A. Steffen, A. Beeby, L. O. Pålsson, D. J. Tozer, T. B. Marder*
"Experimental and Theoretical Studies of the Photophysical Properties of 2- and 2,7-Functionalized Pyrene Derivatives"
J. Am. Chem. Soc. 2011, 133, 13349.

2010

10. A. Steffen, R. M. Ward, W. D. Jones, T. B. Marder*
"Dibenzometallacyclopentadienes, boroles and selected transition metal and main group heterocyclopentadienes: Synthesis, catalytic and optical properties"
Coord. Chem. Rev. 2010, 254, 1950.
 

9. A. Steffen, M. G. Tay, A. S. Batsanov, J. A. K. Howard, A. Beeby, K. Q. Vuong, X.-Z. Sun, M. W. George, T. B. Marder*
"2,5-Bis(p-R-Arylethynyl)rhodacyclopentadienes Showing Intense Fluorescence: Denying the Presence of a Heavy Atom"
Angew. Chem. Int. Ed. 2010, 49, 2349.

2009

8. C. D. Entwistle, J. C. Collings, A. Steffen, L.-O. Pålsson, A. Beeby, D. Albesa-Jové, J. M. Burke, A. S. Batsanov, J. A. K. Howard, J. A. Mosely, S.-Y. Poon, W.-Y. Wong, F. Ibersiene, S. Fathallah, A. Boucekkine, J.-F. Halet, T. B. Marder*
"Syntheses, Structures, Two-Photon Absorption Cross-Sections and Computed Second Hyperpolarisabilities of Quadrupolar A––A Systems Containing E-Dimesitylborylethenyl Acceptors"
J. Mater. Chem. 2009, 19, 7532.
 

7. M. G. Crestani, A. Steffen, A. M. Kenwright, A. S. Batsanov, J. A. K. Howard, T. B. Marder*
"Oxidative Addition of X-H (X = C, N, O) Bonds to [Ir(PMe3)4]Cl and Catalytic Hydration of Acetonitrile Using its Peroxo Derivative, [Ir(O2)(PMe3)4]Cl, as Catalyst Precursor"
Organometallics 2009, 28, 2904.

2008

6. T. Schaub, P. Fischer, A. Steffen, T. Braun*, U. Radius*, A. Mix
"C-F Activation of Fluorinated Arenes using NHC stabilized Nickel (0) Complexes: Selectivity and Mechanistic Investigations"
J. Am. Chem. Soc. 2008, 130, 9304.
 

2007

5. A. Steffen, T. Braun*, B. Neumann, H.-G. Stammler
"Palladium Fluoro Complexes: Useful Tools to Access Organometallic Metallamacrocycles"
Angew. Chem. Int. Ed. 2007, 119, 8828.
 

4. A. Steffen, T. Hagemeister, T. Braun*, P. Jutzi*, B. Neumann, H.-G. Stammler
"Synthesis of 3,3,3- Trifluoropropyl Substituted Cyclopentadienes and their Zirconocene Derivatives: Catalytic Applications in the Polymerization of Ethylene”
Organometallics 2007, 26, 5289.

2006

3. T. Braun*, J. Izundu, A. Steffen, B. Neumann, H.-G. Stammler
"Reactivity of a Palladium Fluoro Complex Towards Silanes And Bu3SnCH=CH2: Catalytic Derivatisation of Pentafluoropyridine Based on Carbon–Fluorine Bond Activation Reactions"
Dalton Trans. 2006, 43, 5118.
 

2005

2. T. Braun*, A. Steffen, V. Schorlemer, B. Neumann, H.-G. Stammler
"Routes to Unique Palladium A-Frame Complexes With a Bridging Fluoro-Ligand"
Dalton Trans. 2005, 20, 3331.
 

1. A. Steffen, M. I. Sladek, T. Braun*, B. Neumann, H.-G. Stammler
"Catalytic C-C Coupling Reactions at Nickel by C-F Activation of a Pyrimidine in the Presence of a C-Cl Bond: the Crucial Role of Highly Reactive Fluorocomplexes"
Organometallics 2005, 24, 4057.

Location & approach

The campus of TU Dort­mund University is located close to interstate junction Dort­mund West, where the Sauerlandlinie A 45 (Frankfurt-Dort­mund) crosses the Ruhrschnellweg B 1 / A 40. The best interstate exit to take from A 45 is "Dort­mund-Eichlinghofen" (closer to Campus Süd), and from B 1 / A 40 "Dort­mund-Dorstfeld" (closer to Campus Nord). Signs for the uni­ver­si­ty are located at both exits. Also, there is a new exit before you pass over the B 1-bridge leading into Dort­mund.

To get from Campus Nord to Campus Süd by car, there is the connection via Vogelpothsweg/Baroper Straße. We recommend you leave your car on one of the parking lots at Campus Nord and use the H-Bahn (suspended monorail system), which conveniently connects the two campuses.

TU Dort­mund University has its own train station ("Dort­mund Uni­ver­si­tät"). From there, suburban trains (S-Bahn) leave for Dort­mund main station ("Dort­mund Hauptbahnhof") and Düsseldorf main station via the "Düsseldorf Airport Train Station" (take S-Bahn number 1, which leaves every 20 or 30 minutes). The uni­ver­si­ty is easily reached from Bochum, Essen, Mülheim an der Ruhr and Duisburg.

You can also take the bus or subway train from Dort­mund city to the uni­ver­si­ty: From Dort­mund main station, you can take any train bound for the Station "Stadtgarten", usually lines U41, U45, U 47 and U49. At "Stadtgarten" you switch trains and get on line U42 towards "Hombruch". Look out for the Station "An der Palmweide". From the bus stop just across the road, busses bound for TU Dort­mund University leave every ten minutes (445, 447 and 462). Another option is to take the subway routes U41, U45, U47 and U49 from Dort­mund main station to the stop "Dort­mund Kampstraße". From there, take U43 or U44 to the stop "Dort­mund Wittener Straße". Switch to bus line 447 and get off at "Dort­mund Uni­ver­si­tät S".

The H-Bahn is one of the hallmarks of TU Dort­mund University. There are two stations on Campus Nord. One ("Dort­mund Uni­ver­si­tät S") is directly located at the suburban train stop, which connects the uni­ver­si­ty directly with the city of Dort­mund and the rest of the Ruhr Area. Also from this station, there are connections to the "Technologiepark" and (via Campus Süd) Eichlinghofen. The other station is located at the dining hall at Campus Nord and offers a direct connection to Campus Süd every five minutes.

The AirportExpress is a fast and convenient means of transport from Dort­mund Airport (DTM) to Dort­mund Central Station, taking you there in little more than 20 minutes. From Dort­mund Central Station, you can continue to the uni­ver­si­ty campus by interurban railway (S-Bahn). A larger range of in­ter­na­tio­nal flight connections is offered at Düsseldorf Airport (DUS), which is about 60 kilometres away and can be directly reached by S-Bahn from the uni­ver­si­ty station.

The facilities of TU Dort­mund University are spread over two campuses, the larger Campus North and the smaller Campus South. Additionally, some areas of the uni­ver­si­ty are located in the adjacent "Technologiepark".

Site Map of TU Dort­mund University (Second Page in English).