Conformation controlled stepwise hydride shuffling from the metal to the ligand backbone
作者:Nicholas R. Wiedmaier、Hansjörg Speth、Georg Leistikow、Klaus Eichele、Hartmut Schubert、Hermann A. Mayer、Lars Wesemann
DOI:10.1039/d0dt01431a
日期:——
of the pentacoordinate cationic 16-electron dicarbonyl rutheniumcomplex 3. Hydrogenation of 3 with LiAlH4 generates the hydride complexes syn-4 and anti-4 which after protonation allow isolation of the symmetric 5. In 5 a second double bond of the cycloheptatriene backbone was hydrogenated. Complex 5 was also obtained directly by the reaction of 3 with hydrogen (1 bar). Storage of 5 under a hydrogen
作者:Wolfgang Leis、Sophie Wernitz、Benedikt Reichart、David Ruckerbauer、Johannes Wolfram Wielandt、Hermann A. Mayer
DOI:10.1039/c4dt00885e
日期:——
Chemical conversions of a cycloheptatriene iridium pincer complex were studied by NMR and MS techniques as well as DFT calculations.
通过核磁共振和质谱技术以及密度泛函理论计算,研究了环庚三烯铱夹心配合物的化学转化。
Carbocyclic pincer carbene complexes of ruthenium: syntheses and reversible hydrogenation
作者:Nicholas R. Wiedmaier、Hartmut Schubert、Hermann A. Mayer、Lars Wesemann
DOI:10.1039/d1dt02266k
日期:——
The ruthenium carbene pincer complex 2 was synthesized treating the benzo annulated cycloheptatriene bisphosphine 1 with RuCl3. Addition of three equivalents of hydrogen to the carbocyclic carbene complex 2 was achieved in reaction of 2 with hydrogen at elevated temperatures. Hydrogenated complex 4, exhibiting a rigid chair conformation in solution, was dehydrogenated by heating a toluene solution