Enhanced two-photon absorption cross-sections of zinc(II) tetraphenylporphyrins peripherally substituted with d~6-metal alkynyl complexes

摘要

The syntheses of new Zn(II) tetraphenylporphyrin (ZnTPP) derivatives functionalized with electron-rich d~6-transition metal alkynyl complexes at their periphery are reported. Z-scan measurements reveal remarkably large effective two-photon absorption (TPA) cross-sections in the visible range for these compounds.