Year 2023

• Overview of the Synthesis and Catalytic Reactivity of Transition Metal Complexes Based on C═P Bond Systems

  Publication

  • A. Ziółkowska
  • D. Justyna
  • Ł. Ponikiewski

  - ORGANOMETALLICS - Year 2023

  This report provides an overview of the use of phosphaalkenes (C=P) in syntheses of various complexes. Going through successive complexes containing the d-block metals, we sought how this area of chemistry was formed over the years. Additionally, this work contains information on the possible coordination types and means of constructing the complexes. In addition, this review reveals the reactivities of phosphaalkene complexes...

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Year 2019

• Molecular Structures of the Phospha-Wittig Reaction Intermediate: Initial Step in the Synthesis of Compounds with a C═P–P Bond as Products in the Phospha-Wittig Reaction

  Publication

  • A. Ziółkowska
  • N. Szynkiewicz
  • Ł. Ponikiewski

  - ORGANOMETALLICS - Year 2019

  The phospha-Wittig reactivity ofβ-diketiminate titanium(III) complexes with phosphanylphosphido ligands was investigated. The reactions of [MeNacNacTi(Cl){η2-P(SiMe3)-PtBu2}] and [MeNacNacTi(Cl){η2-P(SiMe3)-P(Ph)tBu}] with acetone conducted in toluene solution under mild conditions led to the phospha-Wittig intermediates [{(ArN=C(Me)CHC(Me)=NAr)(C(Me)2O}Ti(Cl){PtBu2-P(SiMe3)C(Me)2O}] (1) and [{(ArN=C(Me)CHC(Me)=NAr) (C-(Me)2O}Ti(Cl){P(Ph)tBu-P(SiMe3)C(Me)2O}]...

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Year 2014

• Chromium-Catalyzed CO2–Epoxide Copolymerization

  Publication

  • J. Gurnham
  • S. Gambarotta
  • I. Korobkov
  • L. Jasińska-Walc
  • R. Duchateau

  - ORGANOMETALLICS - Year 2014

  Iminopyrrole, aminopyrrole, and aminophosphine ligands were complexed with various chromium sources, producing eight complexes that were tested for their catalytic behavior toward epoxide–CO2 copolymerization. As elucidated by MALDI-TOF-MS, copolymerizations afforded polycarbonates and poly(ether-carbonates) exhibiting linear or cyclic topologies.

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Year 2011

• Reactions of Lithiated Diphosphanes R2P-P(SiMe3)Li (R = tBu, iPr, iPr2N, Et2N) with [Cp2WCl2]. Syntheses and Structures of the First Terminal Phosphanylphosphido Complexes of Tungsten(IV)

  Publication

  • R. Grubba
  • K. Kazimierczuk
  • . Gudat Dietrich
  • J. Pikies

  - ORGANOMETALLICS - Year 2011

  Reactions of R2P−P(SiMe3)Li (R = tBu, iPr, iPr2N, Et2N) with [Cp2WCl2] yield terminal phosphanylphosphido complexes [Cp(C5H4P-PR2)WH] or [Cp{C5H4P-PR2}-W(SiMe3)] by way of a hydrogen or SiMe3 migration to tungsten. The solid-state structures of [Cp(C5H4P−PtBu2)-WH] and [Cp(C5H4P-PNEt2)WH] were established by singlecrystalX-ray diffraction. Two stereoisomers of [Cp(C5H4P−PtBu2)WH] were identified by solution NMR spectroscopy. Reaction...

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Year 2006

• Achiral and Chiral Transition Metal Complexes with Modularly Designed Tridentate PNP Pincer-Type Ligands Based on N-Heterocyclic Diamines

  Publication

  • D. Benito-Garagorri
  • E. Becker
  • J. Wiedermann
  • W. Lackner
  • M. Pollak
  • K. Mereiter
  • J. Kisala
  • K. Kirchner

  - ORGANOMETALLICS - Year 2006

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• The anion [Mg6Cl8Cp*5]-: a final intermediate on the way to the molecular donor-free Grignard compound MgClCp*?

  Publication

  • J. Vollet
  • J. Hartig
  • K. Kazimierczuk
  • H. Schnoeckel

  - ORGANOMETALLICS - Year 2006

  Otrzymano i scharakteryzowano strukturalnie rzadki przypadek związku Grignarda pozbawionego donora. Struktura krystaliczna [Mg6Cl8Cp*5][AlCp*2] C6H6 zawiera zarówno metallocen (Cp*AlCp*) jak i odwrócony metallocen (MgCp*Mg).

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