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Synthesis and Characterization of Some Axially Substituted Silicon(Ⅳ), Titanium(Ⅳ) and Tin(Ⅳ) Phthalocyanines

Author: DingXiaoXia
Tutor: PengYiRu
School: Fujian Normal University
Course: Inorganic Chemistry
Keywords: Axially substituted silicon (IV) phthalocyanine Axially substituted titanium (IV) phthalocyanine The axially substituted tin (IV) phthalocyanine Polymer nanoparticles Synthesis and Characterization
CLC: O641.4
Type: Master's thesis
Year: 2008
Downloads: 104
Quote: 0
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Abstract


Metal phthalocyanine complexes is a photo-oxidation-reduction reaction photosensitizers in photodynamic therapy of cancer, HIV and age-related macular degeneration is caused by more and more interest in people. Phthalocyanine complexes was inherent macrocyclic conjugate system inevitably produce intermolecular aggregation phenomenon, thus greatly shortening the the excitation triplet oxygen life and reduce the efficiency of the photosensitive. Numerous studies expand around to reduce the aggregation of the phthalocyanine molecule. Studies have shown that the introduction of axial ligands, can weaken the metal phthalocyanine complexes л-л role in the matter, reduce aggregation and improve the efficiency of photosensitization on the central metal. Therefore, the paper reports three new types of axial replace of metal phthalocyanine complexes, they are: axial replace silicon (IV) phthalocyanine complexes: di-2 - the pyridyloxy axial replace silicon (IV) phthalocyanine complexes material (SiPc (OR 1 ) 2 ) and di-2 - isopropyl -6 - methyl-4 - pyrimidinyloxy axial replace silicon (IV) phthalocyanine phthalocyanine complexes (SiPc (OR 2 ) 2 ); surrounding lipophilic pentyloxy substituted axial titanium (IV) phthalocyanine complexes: o-benzene dioxide the axial replace - d-alpha-(pentyloxy) titanium (IV) phthalocyanine (TIPC (OC 5 H 11 ) 4 - the catechol) hematoxylin axial replace the four-alpha-(E-) titanium (IV) phthalocyanine (TIPC (OC 5 H 11 ) -hematoxylin) and surrounding lipophilic pentyloxy replace the axial tin (IV) phthalocyanine complexes: di-2 - isopropyl-6 - methyl-4 - pyrimidinyloxy axial replace - four-alpha-(pentyloxy) tin (IV) phthalocyanine complexes (Sn (OR 2 ) 2 PC (OC 5 H 11 ) 4 ). And by elemental analysis, IR, 1 H NMR, MS, UV / Vis and fluorescence spectra of their structure characterized. This article also choose amphiphilic poly (N'-benzyl-oxy-carbonyl-L-lysine) - poly (ethylene glycol) - poly (N'-benzyl oxycarbonyl group of lysine) (PLL (Z)-PEG-PLL (Z)) of embedded A segment is a pharmaceutical carrier. Poly (N'-benzyloxycarbonyl-lysine) - poly (ethylene glycol) - poly (N'-benzyl oxycarbonyl group of lysine) (PLL (Z)-PEG-PLL (Z)) is the use of benzyloxycarbonyl-lysine acid and triphosgene prepared benzyloxycarbonyl-lysine anhydride, an amino group with a double-side polyethylene glycol as an initiator, the anionic ring-opening polymerization synthesis. Polymer structure using the IR 1 H NMR characterization. Then prepared by dialysis method the new axial replace silicon (IV) phthalocyanine complexes SiPc (OR 1 ) 2 and SIPC (OR 2 Substituted Phthalocyanine axial load) 2 amphiphilic block copolymers self-assemble into a polymer nanoparticles, atomic force microscopy (AFM) nanoparticles planet shaped a diameter of about 35 nm. Explore the process of the formation of polymer nanoparticles.

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