A chiral porphyrazine (pz), H(2)[pz(trans-A(2)B(2))] (247), has been prepared that exhibits preferential in vivo accumulation in the cells of tumors. Pz 247 exhibits near-infrared (NIR) emission with lambda > 700 nm in the required wavelength range for maximum tissue penetration. When MDA-MB-231 breast tumor cells are treated with 247, the agent shows strong intracellular fluorescence with an e...

The electronic and vibrational Raman spectra of octa-substituted (R = –SC10H21) Coand Cu-porphyrazines are reported in their solid-state, mesophase, and isotropic liquid forms, as well as in THF solution. Their electronic spectra are composed of traditional Soret (CuS10 = 355 nm, CoS10 = 347 nm) and lower energy Q-bands (CuS10 = 669 nm, CoS10 = 639 nm), as well as a weaker, functionalityspecifi...

Phthalocyanines, naphthalocyanins, and their derivatives are frequently used as light modulating materials. These compounds, with their stable planar square structure and highly delocalized π-electron system, are being used in numerous technological applications, such as pigments in chemical sensors, and more recently as photosensitizers for photodynamic therapy. The nonlinear optical propertie...

The implementation of thirty-two pentafluorophenyl groups in the periphery of a phthalocyanine analogue results in a photosensitizer with a pronounced resistance towards autophotooxidation. The synthesis relies on the microwave-assisted cycloaddition of terminal alkynes to tetrakis(pentafluorophenyl)cyclopentadienone, for which a new route was devised.