0000000001300168
AUTHOR
Christoph Räuber
Shedding Light on the Interactions of Hydrocarbon Ester Substituents upon Formation of Dimeric Titanium(IV) Triscatecholates in DMSO Solution
Abstract The dissociation of hierarchically formed dimeric triple lithium bridged triscatecholate titanium(IV) helicates with hydrocarbyl esters as side groups is systematically investigated in DMSO. Primary alkyl, alkenyl, alkynyl as well as benzyl esters are studied in order to minimize steric effects close to the helicate core. The 1H NMR dimerization constants for the monomer–dimer equilibrium show some solvent dependent influence of the side chains on the dimer stability. In the dimer, the ability of the hydrocarbyl ester groups to aggregate minimizes their contacts with the solvent molecules. Due to this, most solvophobic alkyl groups show the highest dimerization tendency followed by…
Chasing Weak Forces: Hierarchically Assembled Helicates as a Probe for the Evaluation of the Energetics of Weak Interactions.
London dispersion forces are the weakest interactions between molecules. Because of this, their influence on chemical processes is often low, but can definitely not be ignored, and even becomes important in cases of molecules with large contact surfaces. Hierarchically assembled dinuclear titanium(IV) helicates represent a rare example in which the direct observation of London dispersion forces is possible in solution even in the presence of strong cohesive solvent effects. Hereby, the dispersion forces do not unlimitedly support the formation of the dimeric complexes. Although they have some favorable enthalpic contribution to the dimerization of the monomeric complex units, large flexible…
From One-Pot NH-Sulfoximidations of Thiophene Derivatives to Dithienylethene-Type Photoswitches
Thiophene NH-sulfoximines have been synthesized using a one-pot NH-sulfoximidation reaction of thiophenes. The reactivity of the products was investigated, and the developed protocols were used for the synthesis of a new class of dithienylethene-type photoswitches containing a sulfoximidoyl group.
CCDC 1950786: Experimental Crystal Structure Determination
Related Article: A. Carel N. Kwamen, Marcel Schlottmann, David Van Craen, Elisabeth Isaak, Julia Baums, Li Shen, Ali Massomi, Christoph Räuber, Benjamin P. Joseph, Gerhard Raabe, Christian Göb, Iris M. Oppel, Rakesh Puttreddy, Jas S. Ward, Kari Rissanen, Roland Fröhlich, Markus Albrecht|2020|Chem.-Eur.J.|26|1396|doi:10.1002/chem.201904639
CCDC 1919187: Experimental Crystal Structure Determination
Related Article: A. Carel N. Kwamen, Marcel Schlottmann, David Van Craen, Elisabeth Isaak, Julia Baums, Li Shen, Ali Massomi, Christoph Räuber, Benjamin P. Joseph, Gerhard Raabe, Christian Göb, Iris M. Oppel, Rakesh Puttreddy, Jas S. Ward, Kari Rissanen, Roland Fröhlich, Markus Albrecht|2020|Chem.-Eur.J.|26|1396|doi:10.1002/chem.201904639
CCDC 1539540: Experimental Crystal Structure Determination
Related Article: David Van Craen, Wolfgang H. Rath, Marina Huth, Laura Kemp, Christoph Räuber, Jan M. Wollschläger, Christoph A. Schalley, Arto Valkonen, Kari Rissanen, Markus Albrecht|2017|J.Am.Chem.Soc.|139|16959|doi:10.1021/jacs.7b10098
CCDC 1917460: Experimental Crystal Structure Determination
Related Article: A. Carel N. Kwamen, Marcel Schlottmann, David Van Craen, Elisabeth Isaak, Julia Baums, Li Shen, Ali Massomi, Christoph Räuber, Benjamin P. Joseph, Gerhard Raabe, Christian Göb, Iris M. Oppel, Rakesh Puttreddy, Jas S. Ward, Kari Rissanen, Roland Fröhlich, Markus Albrecht|2020|Chem.-Eur.J.|26|1396|doi:10.1002/chem.201904639
CCDC 1539541: Experimental Crystal Structure Determination
Related Article: David Van Craen, Wolfgang H. Rath, Marina Huth, Laura Kemp, Christoph Räuber, Jan M. Wollschläger, Christoph A. Schalley, Arto Valkonen, Kari Rissanen, Markus Albrecht|2017|J.Am.Chem.Soc.|139|16959|doi:10.1021/jacs.7b10098
CCDC 1894289: Experimental Crystal Structure Determination
Related Article: Bram Verbelen, Eric Siemes, Andreas Ehnbom, Christoph Räuber, Kari Rissanen, Dominik Wöll, Carsten Bolm|2019|Org.Lett.|21|4293|doi:10.1021/acs.orglett.9b01475
CCDC 1919188: Experimental Crystal Structure Determination
Related Article: A. Carel N. Kwamen, Marcel Schlottmann, David Van Craen, Elisabeth Isaak, Julia Baums, Li Shen, Ali Massomi, Christoph Räuber, Benjamin P. Joseph, Gerhard Raabe, Christian Göb, Iris M. Oppel, Rakesh Puttreddy, Jas S. Ward, Kari Rissanen, Roland Fröhlich, Markus Albrecht|2020|Chem.-Eur.J.|26|1396|doi:10.1002/chem.201904639
CCDC 1919186: Experimental Crystal Structure Determination
Related Article: A. Carel N. Kwamen, Marcel Schlottmann, David Van Craen, Elisabeth Isaak, Julia Baums, Li Shen, Ali Massomi, Christoph Räuber, Benjamin P. Joseph, Gerhard Raabe, Christian Göb, Iris M. Oppel, Rakesh Puttreddy, Jas S. Ward, Kari Rissanen, Roland Fröhlich, Markus Albrecht|2020|Chem.-Eur.J.|26|1396|doi:10.1002/chem.201904639
CCDC 1539539: Experimental Crystal Structure Determination
Related Article: David Van Craen, Wolfgang H. Rath, Marina Huth, Laura Kemp, Christoph Räuber, Jan M. Wollschläger, Christoph A. Schalley, Arto Valkonen, Kari Rissanen, Markus Albrecht|2017|J.Am.Chem.Soc.|139|16959|doi:10.1021/jacs.7b10098
CCDC 1917415: Experimental Crystal Structure Determination
Related Article: A. Carel N. Kwamen, Marcel Schlottmann, David Van Craen, Elisabeth Isaak, Julia Baums, Li Shen, Ali Massomi, Christoph Räuber, Benjamin P. Joseph, Gerhard Raabe, Christian Göb, Iris M. Oppel, Rakesh Puttreddy, Jas S. Ward, Kari Rissanen, Roland Fröhlich, Markus Albrecht|2020|Chem.-Eur.J.|26|1396|doi:10.1002/chem.201904639