CONTENTS

A novel europium tetraazaporphyrinato and phthalocyaninato heteroleptic double-decker has been facilely synthesized. The compound was well characterized by elemental analysis and various spectroscopic methods. The electrochemical behavior of this compound demonstrated an electro-active compound for high density information storage. The photochromic performance of the compound was detected by electronic absorption spectra, suggesting the compound to be a good candidate for non-destructive readout.

Two tetrasubstituted zinc phthalocyanines bearing quinolinoxy groups were synthesized and characterized for the first time. Their photophysical properties have also been investigated and discussed together with the influence of substituent position and organic solvents on these properties. Introduction quinolinoxy group to the Pc ring affects these photophysical properties to some extent.

Asymmetric epoxidation of olefi ns was achieved by using the iron chiral mono-faced strapped porphyrins as catalysts in the presence of nitrogen ligand. Enantiomeric excess (ee) of 80% and yield of 88% were measured for the epoxidation of styrene in the presence of 4-phenyl pyridine. The UV-vis study of nitrogen ligands titration to catalysts supports the catalytic results.

A series of mono-hydroxyl corrole bearing a fl uorine (1), chlorine (2), bromine (3) and iodine (4) atom on its 10-phenyl group have been synthesized. The properties of these halogenated corroles has been investigated by steady and transient fluorescence spectroscopy. Experimental results show that the halogen atom at meso-phenyl group of corroles exhibit signifi cant heavy atom effect on their fluorescence quantum yields, lifetime and intersystem crossing rate cons tant.

Two novel axial-disubstituted silicon(IV) phthalocyanines (compounds 1 and 2) have been prepared by introducing paracetamol (a common antipyretic analgesics) or its isomer 4-hydroxyphenylacetamide at the axial positions of silicon(IV) phthalocyanine, respectively. Their photophysical and photobiological properties have been examined. Compound 2 exhibits a much higher in vitro photodynamic activity toward HT29 human colon adenocarcinoma cells than its isomer compound 1.

The UV-vis spectra and redox potentials of six octaethylporphyrins with first row transition metal ions were measured in CH₂Cl₂, DMF, DMSO and py. The effect of solvent parameters and the properties of the metal ion on the spectra and potentials of the porphyrins was examined. Solvent binding constants were determined using spectral titration method. Some comparison were also made between (OEP)M and (TPP)M with the same central metal ions. Supplementary Material

Films with alternating layers containing anionic tetracarboxylic copper phthalocyanine [CuPc(COONa)₄] and cationic polydiallydimethylammonium chloride (PDDA) were fabricated by electrostatic self-assembled layer-by-layer (LBL) technique. The film exhibited excellent nonlinear absorption and self-focusing effect. The second-order molecular hyperpolarizability γ value of the film was much larger than that of CuPc(COONa)₄ aqueous solution under the irradiation of whether ns or ps pulses. A series of damage experiments of the film for the intense laser pulses were conducted to prove the reliability of the experimental results under the conditions.

A novel industrial-scale trial for cyclohexane oxidation with air over metalloporphyrins as cytochrome P-450 monooxygenase model was reported, and a biological-chemical-cycle coupling mechanism was proposed to rationalize the aerobic oxidation of hydrocarbons catalyzed by metalloporphyrins.

The phthalocyanine salt [ZnPc(NMe₃)₄]I₄ was synthesized from 4-nitrophthalonitrile using a three-step procedure. The interaction of [ZnPc(NMe₃)₄]⁴⁺ with calf thymus DNA (CT DNA) has been investigated by UV-vis and fluorescence spectrometric methods.