Intermolecular interactions manipulating molecules

It is clear that combining the design of NLO active molecules with the manipulation of selective intermolecular interactions may produce novel NLO materials that take into account supramolecular features. 

The results presented above illustrate how combining the design of NLO active molecules with the manipulation of selective intermolecular interactions may produce novel NLO materials. Bringing together two basic features of supramolecular chemistry -molecular recognition and self-organization- with the optical properties of the components, opens ways towards the design of supramolecular photonic devices. 

Magnetic beads can provide a handle that can be used to manipulate molecules and investigate intermolecular interactions [111]. DNA strands can be attached to a glass surface on one end and a micron-sized magnetic... 

The relationship between macroscopic properties and molecular properties is a major area of interest, since it is through manipulation of the molecular structure of me-sogens, that the macroscopic liquid crystal properties can be adjusted towards paricu-lar values which optimize performance in applications. The theoretical connection between the tensor properties of molecules and the macroscopic tensor properties of liquid crystal phases provides a considerable challenge to statistical mechanics. A key factor is of course the molecular orientational order, but interactions between molecules are also important especially for elastic and viscoelastic properties. It is possible to divide properties into two categories, those for which molecular contributions are approximately additive (i.e. they are proportional to the number density), and those properties such as elasticity, viscosity, thermal conductivity etc. for which intermolecular forces are responsible, and so have a much more complex dependence on number density. For the former it is possible to develop a fairly simple theory using single particle orientational order parameters. 

Chemistry beyond the molecule , bearing on the organized entities of higher complexity that result from the association of two or more chemical species held together by intermolecular forces. Its development requires the use of all resources of molecular chemistry combined with the designed manipulation of non-covalent interactions so as to form supramolecular entities, supramolecules possessing features as well defined as those of molecules themselves. ... 

---