Fergal E. Hanna

Sep 25, 2024 | pubs.rsc.org | Fergal E. Hanna |Lensfield Road |Christopher A Hunter

Polarisation effects on the H-bond acceptor properties of sulfonamides† The strengths of H-bonding interactions in networks are affected by cooperativity between the interacting sites. Compounds with an intramolecular H-bond between a sulfonamide NH group and pyridine nitrogen were used to measure the magnitude of cooperative effects on intermolecular H-bonding interactions with the sulfonamide oxygen.

Jul 3, 2024 | pubs.rsc.org | Fergal E. Hanna |Lensfield Road |Alexander J. Root |Markus Schade

Negative cooperativity in the formation of H-bond networks involving primary anilines† Networks of H-bonds can show non-additive behaviour, where the strength of one interaction perturbs another. The magnitude of such cooperative effects can be quantified by measuring the effect of the presence of an intramolecular H-bond at one site on a molecule on the association constant for formation of an intermolecular H-bond at another site.

Sep 29, 2023 | pubs.rsc.org | Fergal E. Hanna |Lensfield Road |Christopher A Hunter |Alexander J. Root

Polarisation effects on the H-bond acceptor properties of secondary amides† H-bonding interactions in networks are stabilised by cooperativity, but the relationship between the chemical structures of the interacting functional groups and the thermodynamic consequences is not well-understood.