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- Publications
- Influence
Unsymmetric ansa-zirconocene complexes with chiral ethylene bridges : influence of bridge conformation and monomer concentration on the stereoselectivity of the propene polymerization reaction
- B. Rieger, Gerhard Jany, R. Fawzi, M. Steimann
- Chemistry
- 1 February 1994
Synthesis, X-Ray Structure and Complexation Behavior of the New Tripodal Phosphane Ligand cis, cis-1,3,5-Tris[(diphenylphosphanyl)methyl]1-1,3,5-trimethylcyclohexane (tdppmtmcy). Crystal Structure of…
- H. Mayer, R. Fawzi, M. Steimann
- Chemistry
- 1 June 1993
The introduction of three methyl groups into the ipso positions of the cyclohexane ring in cis,cis-1,3,5-tris[diphenylphosphanyl)methyl]cyclohexane (tdppmcy) (1) leads to the new tripodal phosphane… Expand
Synthese und Eigenschaften von 1,3-Diisopropyl-4,5-dimethylimidazolium- 2-carboxylat. Ein stabiles Carben-Addukt des Kohlendioxids [1] / Synthesis and Properties of…
- N. Kuhn, M. Steimann, G. Weyers
- Biology
- 1999
The reaction of 2,3-dihydro-l,3-diisopropyl-4,5-dimethylimidazol-2-ylidene (5) with CO 2 gives the imidazolium-2-carboxylate 6. The compound can be transformed into the salts of its corresponding… Expand
Indigo‐Metal Complexes: Synthesis and Structure of PdII and PtII Compounds Containing the Anions of Indigo and Octahydroindigo as Mono‐ and Bis‐Chelate Ligands
- W. Beck, C. F. Schmidt, Rolf Wienold, M. Steimann, B. Wagner
- Chemistry
- 1 November 1989
Derivate des Imidazols. XXII. Imidazoliniminato-Komplexe des Titans. Synthese und Kristallstrukturen von [(ImN)TiCl3]2 und [(ImN)TiCl3 · 2 MeCN] (ImN = 1,3-Dimethylimidazolin-2-imino)†
- N. Kuhn, R. Fawzi, M. Steimann, J. Wiethoff
- Chemistry
- 1997
1,3-Dimethyl-2trimethylsilyliminoimidazolin(ImNSiMe3, 7) reagiert mit TiCl4 in n-Pentan zum Zweikernkomplex[(ImN)TiCl3]2 (8), der durch Acetonitril in die einkernige Verbindung [(ImN)TiCl3 · 2 MeCN]… Expand
Reversible and Irreversible Coordination of Small Molecules to the Cp*Ru Fragment by a Facile Cleavage of the Ruthenium-Oxygen Bond of .eta.2P-O-Chelated (1,3-Dioxan-2-ylmethyl)diphenylphosphine
- E. Lindner, Michael Haustein, R. Fawzi, M. Steimann, P. Wegner
- Chemistry
- 1 December 1994
Derivate des Imidazols. XXIII. 2‐Iminoimidazolin‐Derivate des Magnesiums und Aluminiums
- N. Kuhn, R. Fawzi, M. Steimann, J. Wiethoff
- Chemistry
- 1997
1,3-Dimethyl-2-iminoirnidazolin (7, ImNH) bildet mit MgI2 den Komplex [(ImNH)4Mg]I2 (8), dessen Kristallstrukturanalyse das Vorliegen von NHN-Brucken innerhalb des Kations glaubhaft macht. Mit MeMgI… Expand
Weak interionic interactions in 2-bromoimidazolium derivatives
- N. Kuhn, A. Abu-Rayyan, K. Eichele, S. Schwarz, M. Steimann
- Chemistry
- 20 April 2004
Abstract The 2-bromoimidazolium bromide [ImBr]Br (5, Im=2,3-dihydro-1,3-diisopropyl-4,5-dimethylimidazol-2-ylidene) is prepared from Im (4) and bromine. From 4 and CBr4, the adduct [ImBr]Br · CBr4… Expand
Reaction of tellurium tetraiodide with 2,3‐dihydro‐1,3‐diisopropyl‐4,5‐dimethylimidazol‐2‐ylidene
- N. Kuhn, A. Abu-Rayyan, Carla Piludu, M. Steimann
- Chemistry
- 2005
2,3-Dihydro-1,3-diisopropyl-4,5-dimethylimidazol-2-ylidene 1 (Carb, R1 = iPr, R2 = Me) reacts with TeI4 to give the carbene adduct CarbTeI2 (3). The crystal structure of 3 consists of T-shaped… Expand
Methoxyalky 1-funktionalisierte 2,3-Dihy droimidazol-2-ylidene [1] / Methoxyalkyl Functionalized 2,3-Dihydroimidazol-2-ylidenes [1]
- N. Kuhn, E. Niquet, M. Steimann, I. Walker
- Chemistry
- 1 September 1999
The 2,3-dihydro-l,3-di(methoxyalkyl)imidazol-2-ylidenes are obtained from the corresponding cyclic thioureas and potassium. With CS2, the imidazolium dithiocarboxylates are formed. The results of… Expand