Guthardt, Robin Jacob, Hannes L Herle, Dominic Leibold, Michael Bruhn, Clemens Heinz, Myron Holthausen, Max C Siemeling, Ulrich
Published in
Chemistry, an Asian journal
Ferrocene-based N-heterocyclic plumbylenes fc[(NSiMe2 R)2 Pb:] (1; fc=1,1'-ferrocenylene) are easily accessible by transamination from [(Me3 Si)2 N]2 Pb and the corresponding 1,1'-diaminoferrocene derivatives fc(NHSiMe2 R)2 . They may form unconventional dimers 2 by a process, which causes the cleavage of a cyclopentadienyl C-H bond and the formati...
Ye, Jinxiang Li, Lisha You, Yiming Jiao, Chengkang Cui, Ziyang Zhang, Yabin Jia, Shihu Cong, Hengjiang Liu, Shanshan Cheng, Hong-Gang
...
Published in
JACS Au
The preparation of ferrocenes with both axial and planar chiralities poses a considerable challenge. Herein, we report a strategy for the construction of both axial and planar chiralities in a ferrocene system via palladium/chiral norbornene (Pd/NBE*) cooperative catalysis. In this domino reaction, the first established axial chirality is dictated ...
Peluso, Paola Mamane, Victor
Published in
Electrophoresis
In the last decade, planar chiral ferrocenes have attracted a growing interest in several fields, particularly in asymmetric catalysis, medicinal chemistry, chiroptical spectroscopy and electrochemistry. In this frame, the access to pure or enriched enantiomers of planar chiral ferrocenes has become essential, relying on the availability of efficie...
e., ilya
Olefin and diene transformations, catalyzed by organoaluminum-activated metal complexes, are widely used in synthetic organic chemistry and form the basis of major petrochemical processes. However, the role of M–(μ-Cl)–Al bonding, being proven for certain >C=C
ketkov;, sergey
Metallocenes represent one of the most important classes of organometallics with wide prospects for practical use in various fields of chemistry, materials science, molecular electronics, and biomedicine. Many applications of these metal complexes are based on their ability to form molecular ions. We report the first results concerning the changes ...
Guthardt, Robin Oetzel, Lisa Lang, Tobias Bruhn, Clemens Siemeling, Ulrich
Published in
Chemistry (Weinheim an der Bergstrasse, Germany)
The reactivity of ferrocene-based N-heterocyclic tetrylenes [{Fe(η5 -C5 H4 -NSitBuMe2 )2 }E] (E=Ge, Sn, Pb) towards mesityl azide (MesN3 ) is compared with that of PPh2 -functionalised congeners exhibiting two possible reaction sites, namely the EII and PIII atom. For E=Ge and Sn the reaction occurs at the EII atom, leading to the formation of N2 a...
Rosenthal, Uwe
Published in
ChemistryOpen
Recently published reactions of group 4 metallocene bis(trimethylsilyl)acetylene (btmsa) complexes from the last two years are reviewed. Complexes like Cp'2 Ti(η2 -Me3 SiC2 SiMe3 ) and Cp2 Zr(py)(η2 -Me3 SiC2 SiMe3 ) with Cp' as Cp (cyclopentadienyl) and Cp* (pentamethylcyclopentadienyl) have been considered (py=pyridine). These complexes can liber...
Amoza, Martín Maxwell, Lindley Aliaga-Alcalde, Núria Gómez-Coca, Silvia Ruiz, Eliseo
Published in
Chemistry (Weinheim an der Bergstrasse, Germany)
We report the spin dynamic properties of non-substituted ferrocenium complexes. Ferrocenium shows a field-induced single-molecule magnet behaviour in DMF solution while cobaltocene lacks slow spin relaxation neither in powder nor in solution. Multireference quantum mechanical calculations give a non-Aufbau orbital occupation for ferrocenium with sm...
Werny, Maximilian J Zarupski, Jelena Ten Have, Iris C Piovano, Alessandro Hendriksen, Coen Friederichs, Nicolaas H Meirer, Florian Groppo, Elena Weckhuysen, Bert M
Published in
JACS Au
Kinetics-based differences in the early stage fragmentation of two structurally analogous silica-supported hafnocene- and zirconocene-based catalysts were observed during gas-phase ethylene polymerization at low pressures. A combination of focused ion beam-scanning electron microscopy (FIB-SEM) and nanoscale infrared photoinduced force microscopy (...
Münzfeld, Luca Hauser, Adrian Hädinger, Pauline Weigend, Florian Roesky, Peter W
Published in
Angewandte Chemie (International ed. in English)
Reduction of [SmIII (COT1,4-SiiPr3 )(BH4 )(thf)] (COT1,4-SiiPr3 =1,4-(i Pr3 Si)3 C8 H6 ) with KC8 resulted in [SmIII/II/III (COT1,4-SiiPr3 )4 ], the first example of a homoleptic lanthanide quadruple-decker. As indicated by an analysis of the bond metrics in the solid-state, the inner Sm ion is present in the divalent oxidation state, while the out...
