The discussion centers on the definition and classification of Van Der Waals forces in relation to other intermolecular forces, particularly focusing on whether these forces encompass all types of intermolecular interactions or are limited to specific ones. The scope includes theoretical explanations and conceptual clarifications regarding intermolecular forces.
Participants express differing views on whether Van Der Waals forces include all intermolecular forces or are limited to specific types, indicating that the discussion remains unresolved.
The discussion highlights the ambiguity in the classification of intermolecular forces and the potential overlap between different types of interactions, particularly concerning hydrogen bonds.
All intermolecular forces.BogMonkey said:Is Van Der Waals forces just a name for all intermolecular forces that exist between molecules or does it only refer to certain types of intermolecular forces?
Ygggdrasil said:van der Waals forces generally refer to intermolecular forces between two separate uncharged molecules (so this excludes covalent and ionic bonding). These forces include dipole-dipole interactions, dipole-induced dipole interactions, and induced dipole-induced dipole interactions (London dispersion forces). Although hydrogen bonds can be thought of as a class of dipole-dipole interactions, their properties are usually different enough that they are considered a class of intermolecular interactions separate from the van der Waals forces.