Magnetic properties of new charge-transfer complexes based on porphyrins

Tetra-p-tolyl and tetrathienyl substitution of manganese(III) porphyrins in charge-transfer compounds with organic acceptors like tetracyanoethylene is used to modify molecular packing of ferrimagnetically correlated chains in the solid. Ferri- and antiferromagnetically ordered compounds and also borderline situations are realized. The strong influence of the solvent used for crystal growth is exemplified.