Publications

86. Z. Guo, Y. Wang, J. Heitmüller, C. Sieck, A. Prüfer, P. Ralle, A. Steffen, P. Henke, P. R. Ogilby, T. B. Marder, X. Ma, T. Brixner
Ultrafast Photophysics of para-Substituted 2,5-Bis(arylethynyl) Rhodacyclopentadienes: Thermally Activated Intersystem Crossing
2024, submitted.

85. S. Maity, A. M. T. Muthig, I. Sen, O. Mrózek, A. Belyaev, B. Hupp, A. Steffen*
A [2.2]Isoindolinophanyl-based Carbene (iPC) Ligand: Synthesis, Electronic and Photophysical Properties, and Application in Photocatalysis
Angew. Chem. Int. Ed. 2024, in revision.

84. D. J. Hauck, A. Steffen, I. Melle*
Analyzing first-semester chemistry students’ transactive talk and problem-solving activities in an intervention study through a quantitative coding manual
2024, submitted.

83. I. Sen, O. Mrózek, M. Mitra, A. Belyaev, C. Si, E. Zysman-Colman, J. Seibert, S. Bräse, A. Steffen*
„Carbazolophane Enhances the Efficiency of Thermally Activated Delayed Fluorescence in Carbene Coinage Metal Amides“
Chem. Sci. 2024, in revision.

82. M. Mitra, O. Mrózek, M. Putscher, J. Guhl, B. Hupp, A. Belyaev, C. M. Marian,* A. Steffen*
Structural Control of Highly Efficient Thermally Activated Delayed Fluorescence in Carbene Zinc(II) Dithiolates
Angew. Chem. Int. Ed. 2024, e202316300.

81. J. Kuhnt, M. Mitra, S. Maity, B. Hupp, C. M. Marian*, A. Steffen*
Enhanced Intersystem Crossing, Yet Still Fluorescence Upon Introduction of Intermediate Charge-Transfer States in Hemicaged [Zn(bpy)₃]²⁺
J. Phys. Chem. Lett. 2024, 15, 6409.

80. M. A. Bryden, F. Millward, O. S. Lee, L. Cork, M. C. Gather, A. Steffen, E. Zysman-Colman
Lessons learnt in photocatalysis – the influence of solvent polarity and the photostability of the photocatalyst
Chem. Sci. 2024, 15, 3741.

79. S. Koop, O. Mrózek, L. Janiak, A. Belyaev, M. Putscher, C. M. Marian*, A. Steffen*
Synthesis, Structural Characterization and Phosphorescence Properties of Trigonal Zn(II) Carbene Complexes
Inorg. Chem. 2024, 63, 891. Preprint

78. D. Hauck, A. Steffen. I. Melle*
„A Digital Collaborative Learning Environment to Support First-Year Students in Learning Molecular Orbital Theory”
In: M. Rusek, M. Tothova & D. Koperova (Hrsg.) Project-based and Other Student-Activation Strategies and Issues in Science education XX.
Conference Proceedings, Prague, 178–192, 2023.

77. A. M. T. Muthig, J. Wieland, C. Lenczyk, S. Koop, J. Tessarolo, G. H. Clever, B. Hupp, A. Steffen*
“Towards Fast Circularly Polarized Luminescence in 2-Coordinate Chiral Mechanochromic Copper(I) Carbene Complexes”
Chem. Eur. J. 2023, e202300946. (VIP Paper)

76. I. Partanen, O. Al-Saedy, T. Eskelinen, A. J. Karttunen, J. Saarinen, O. Mrózek, A. Steffen,* A. Belyaev,* P.-T. Chou,* I. Koshevoy*
 „Fast and Tunable Phosphorescence from Organic Ionic Crystals”
Angew. Chem. Int. Ed. 2023, 62, e202305108. (HOT Paper)

75. I. Partanen, A. Belyaev, B.-K. Su, Z.-Y. Liu, J. J. Saarinen, I. I. Hashim, A. Steffen, P.-T. Chou, C. Romero-Nieto, I. Koshevoy*
„From Terminal to Spiro-Phosphonium Acceptors, Remarkable Moieties to Develop Polyaromatic NIR Dyes”
Chem. Eur. J. 2023, 29, e202301073.

74. D. Hauck, A. Steffen. I. Melle*
„Supporting first-year students in learning molecular orbital theory through a digital learning unit”
Chemistry Teacher International 2023, 1-10.

73. Hauck, D. H.; Melle, I. & Steffen, A. (2023).
„MO-Theorie im ersten Semester – eine digital-kollaborative Lerneinheit.“
In: H. van Vorst (Hrsg.) Lernen, Lehren und Forschen in einer digital geprägten Welt. 474-477, 2023, Gesellschaft für Didaktik der Chemie und Physik.

72.  A. M. T. Muthig, O. Mrózek, T. Ferschke, M. Rödel, B. Ewald, J. Kuhnt, C. Lenczyk, J. Pflaum,* A. Steffen*
„Mechano-Stimulus and Environment Dependent Circularly Polarized TADF in Chiral Copper(I) Complexes and their Application in OLEDs“
J. Am. Chem. Soc. 2023, 145, 4438.  Preprint

71. O. Mrózek, M. Mitra, B. Hupp, A. Belyaev, N. Lüdtke, D. Wagner, C. Wang, O. S. Wenger, C. M. Marian,*  A. Steffen*
 “An Air- and Moisture-stable Zinc(II) Carbene Dithiolate Dimer Showing Fast TADF and Dexter Energy Transfer Catalysis”
Chem. Eur. J. 2023, e202203980. Preprint

70. N. Lüdtke, A. Steffen, C. M. Marian*
“Finding design principles of OLED emitters through theoretical investigations of Zn(II) carbene complexes"
Inorg. Chem. 2022, 61, 20896.

69. A. M. T. Muthig, B. Ewald, T. H. Ferschke, J. Pflaum, A. Steffen
Patentanmeldung – “Emittermaterial für OLEDs”
PCT/EP2022/073938, 29.08.2022

68. A. M. T. Muthig, J. Wieland, S. Koop, C. Lenczyk, F. Kerner, B. Hupp, A. Steffen*
"Synthesis and Photophysical Studies of Copper(I) CAAC Half-Sandwich Complexes as a Highly Modifiable Class of Emitters"
Inorg. Chem. 2022, 61, 17427.

67. A. M. T. Muthig, M. Krumrein, J. Wieland, M. Gernert, F. Kerner, J. Pflaum,* A. Steffen*
„Trigonal Copper(I) Complexes with Cyclic (Alkyl)(Amino)Carbene Ligands for Single-Photon Near-IR Triplet Emission“
Inorg. Chem. 2022, 61, 14833.

66. M. Dömling, T. Stennett, A. Belyaev, B. Hupp, C. Claes, S. Ullrich, S. Endres, E. Freytag, T. Kramer, T. Kupfer, F. Schorr, T. Thiess, M. Arrowsmith, A. Steffen*, H. Braunschweig*
"Synthesis and Fluorescence Studies of Diborene Coinage Metal Complexes"
Inorg. Chem. 2022, 61, 14058.

65. Nora Lüdtke, Julia Kuhnt, Tabea Heil, Andreas Steffen*, Christel M. Marian*
"Revisiting LLCT Phosphorescence Emission from Zinc(II) Diimine Bis-Thiolate Complexes: It's Actually TADF"
ChemPhotoChem 2022, e202200142.

64. Ondřej Mrózek, Markus Gernert, Andrey Belyaev, Mousree Mitra, Lars Janiak, Christel M. Marian, Andreas Steffen*
“Ultra-long Lived Luminescent Triplet Excited States in Cyclic (Alkyl)(amino)carbene Complexes of Zn(II) Halides”
Chem. Eur. J. 2022, 28, e202201114.

63. D. J. Hauck, I. Melle*, A. Steffen
“Molecular Orbital Theory - Teaching a Difficult Chemistry Topic Using a CSCL Approach in a First-Year University Course”
Educ. Sci. 2021, 11, 485. / Correction Educ. Sci. 2022, 12, 117.

62.  D. J. Hauck, A. Steffen, I. Melle
“Teaching Molecular Orbital Theory Using a CSCL Approach in an Entry-Level University Course.”
In G. S. Carvalho, A. S. Afonso & Z. Anastácio (Hrsg.), Fostering scientific citizenship in an uncertain world (Proceedings of ESERA 2021), (1286-1295), Braga: CIEC, University of Minho. ISBN 978-972-8952-82-2.

61. A. Steffen, A. M. T. Muthig, J. Pflaum, T. H. Ferschke, M. Rödel
Patentanmeldung – „Emittermaterial für OLEDs“
DE 10 2021 128 889.4

60. M. Beliaeva, A. Belyaev, E. V. Grachova, A. Steffen*, I. O. Koshevoy*
„Ditopic Phosphide Oxide Group: A Rigidifying Lewis Base to Switch Luminescence and Reactivity of a Disilver Complex“
J. Am. Chem. Soc. 2021, 143, 15045.

59. T. Hoelzel, A. Belyaev, M. Terzi, L. Stenzel, M. Gernert, C. M. Marian,* A. Steffen,* C. Ganter*
„Linear carbene pyridine copper complexes with sterically demanding N,N´-bis(trityl)imidazolylidene: Syntheses, molecular structures and photophysical properties”
Inorg. Chem. 2021, 60, 18529.

58. A. Steffen,* B. Hupp
“Design of Efficient Emissive Materials”
In Comprehensive Coordination Chemistry III; Constable, E. C., Parkin, G., Que Jr, L., Eds., Vol. 2, Elsevier, 2021; pp 466–502.

57. N. V. Tzouras, E. A. Martynova, X. Ma, T. Scattolin, B. Hupp, H. Busen, M. Saab, Z. Zhang, L. Falivene, G. Pisanò, K. Van Hecke, L. Cavallo, C. S. J. Cazin, A. Steffen,* S. Nolan*
„Simple Synthetic Routes to Carbene-M-Amido (M=Cu, Ag, Au) Complexes for Luminescence and Photocatalysis Applications“
Chem. Eur. J. 2021, 27, 11904.

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”
Chem. Sci. 2020, 11, 9198.

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 Cu^I 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.

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. 2019, 58, 6449.

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.

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.

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.

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.

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)

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.

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.

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.

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.

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.

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.
 

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.

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.
 

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.