Spatial ring current model of the [2.2]paracyclophane molecule

A representation of the current density induced in the [2.2]paracyclophane molecule by a homogeneous magneticfield parallel to the line joining the centers of the phenylene rings is given in compact form by a stagnationgraph that conveys essential information. Analogous graphs were obtained for two perpendicular directions.Plots of streamlines are also reported to complete a ring current model that has been proved useful to understandthe magnetropicity of the system. Stagnation graphs, maps of streamlines and moduli of the current density,and plots of Biot-Savart magnetic shielding density provide a basic tool kit for rationalizing magnetic responseof complex systems.