1,2,3,4-Tetrahydro-1,4-methanonaphthalenes as model compounds to study the influence of molecular structure on molecular dynamics by 13C NMR relaxation data
Abstract
The alkyl 1,2,3,4-tetrahydro-1,4-methanonaphthalenes (THMNs) are proposed as model compounds for studying the influence of molecular shape on reorientational dynamics in liquids. They possess a rigid molecular frame to which different alkyl chains are attached. The synthesis of several alkyl THMNs is described, and the rotational motions of specific 13C–1H vectors have been evaluated by the measurement of 13C relaxation data. The results for the differently-substituted THMNs were compared to each other. The velocity of the reorientational motions could be related to the molecular shape.