The cyclodextrin dimers can bind the guest involving two possible binding modes.

Unlike IgA and IgM, IgG has not yet been shown to form covalent polymers. However in the presence of specific Ag, murine IgG3 has been shown to polymerize through noncovalent interactions. In contrast to the noncovalent oligomers found with murine IgG3, we have detected covalent dimers in three different recombinant human IgG2 Abs produced in myeloma cells. Both IgG2,kappa and IgG2,lambda can f...

Mit Fluorbenzol als Nachbarmolekül können die Protonen des Ameisensäure-Dimers durch Quantentunneln transferieren, so wie sie es im reinen Ameisensäure-Dimer tun. einem kombinierten experimentellen und theoretischen Ansatz ermitteln Weixing Li, Denis S. Tikhonov Melanie Schnell in ihrer Zuschrift auf 25878 den folgenden Mechanismus: Das benachbarte beeinflusst nicht Reaktionsbarriere, sondern v...

Cationic polymerisation of 6,6-disubstituted pentafulvenes yields highly unsaturated, reactive macromolecules of high mo. lecular weight. The mechanistic pathways leading to the polymers are discussed, and the structure XIV of the polymers has been elucidated by a combination of spectroscopic methods as well as by comparison with model compounds. In contrast to reports in the literature, the ma...

A series of metalloporphyrin dimers were modularly prepared and shown to catalyze the methanolysis of a phosphate triester, yielding rates that are large compared to the rate of the uncatalyzed reaction. Up to 1300-fold rate acceleration can be achieved via a combination of cavity-localized Lewis-acid activation and methoxide-induced methanolysis.

We have prepared and studied a family of cyanobiphenyl dimers with varying linking groups with a view to exploring how molecular structure dictates the stability of the nematic and twist-bend nematic mesophases. Using molecular modelling and 1D 1H NOESY NMR spectroscopy, we determine the angle between the two aromatic core units for each dimer and find a strong dependency of the stability of bo...