Oligo molecular interactions

As an extension of the concept of molecular adaption, the internal cavity of an oligo(m-phenylene ethynylene) helix was also anticipated to be complementary in shape to rodlike chain molecules of appropriate diameter.422 Molecular interactions of this type, while quite unlike those typical of biomacromolecules, were sought to reveal oligomeric... 

From the biological viewpoint, glycosaminoglycans (GAGS) are one of the most relevant oligo- and polysaccharides. The access to new NMR hardware and software, as well as the employment of new synthetic and molecular biology protocols have permitted important advances in the comprehension of their structural and conformational properties, as well as deeply study different examples of their interaction with receptors. 

These adducts consist of cyclic dimers comprising folded M2Si2 backbones. The spectroscopic data reveal mainly ionic interactions between alkali metal cations and hypersilanide anions. Additionally, oligo-hapto coordination of the metal ions by the toluene molecules is observed. Intra- and intermolecular agostic interactions to C-H bonds finally govern the peculiarities of both, the molecular and the crystal structures of these compoimds. 

---