Meso-Substituent Effects on Redox Properties of the 5,10-Porphodimethene-Type P,S,N-2-Hybrid Calixphyrins and Their Metal Complexes

摘要

The 5,10-porphodimethene-type P,S,N-2-hybrid calixphyrins bearing p-methoxyphenyl or p-(trifluoromethyl)phenyl groups at the sp(2)-hybridized meso carbons and their palladium(II) and rhodium(l) complexes were prepared and characterized. The electronic effects of the meso-aryl substituents on the redox properties of the pi-conjugated Subunits were evaluated for both the free bases and the palladium complexes, and the hemilabile nature of the P,S,N-2-Calixphyrin platforms in the rhodium complexes was revealed.