201480-81-1Relevant articles and documents
Synthesis, fluorescence, excited triplet state properties and singlet oxygen generation of para-(tert-butylphenoxy) substituted phthalocyanines containing group IV A central elements
Zhang, Xian-Fu,Shao, Xiaona,Tian, Hongyan,Sun, Xiaojie,Han, Kaixue
, p. 480 - 488 (2013)
Phthalocyanines containing group IV A central elements and non-peripheral para-(tert-butyl)-phenoxy substituents, i.e. M(OH)2PC(α-t- butyl-phenoxy)4 (M is Si, Ge, Sn and Pb respectively), were synthesized. The effects of the central elements on the photosensitizing and photophysical properties (quantum yield of singlet oxygen formation, quantum yield and lifetime of lowest lying excited triplet- and singlet state) were investigated by laser flash photolysis, time correlated single photon counting, steady state fluorescence and absorption spectra. The incorporation of large atoms significantly enhances the efficiency of excited triplet state and singlet oxygen formation. The triplet quantum yield is increased 2.5 times to 0.75 for the lead tetrasubstituted phthalocyanine relative to that of 0.30 determined for the silyl analog, while the triplet lifetime is longer than 120 μs. Correspondingly, the quantum yield of singlet oxygen formation is 0.64 for the lead tetrasubstituted phthalocyanine and is 0.26 for the silyl compound. All of the PC complexes maintain reasonably good fluorescence characteristics with the shortest fluorescence lifetime measured being 3.14 ns, and the lowest fluorescence quantum yield of 0.18. These properties indicate that some of the PC complexes may be good candidates for singlet oxygen photosensitization.
Wide-spectrum-band near-infrared absorption dye
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Paragraph 0033-0036, (2021/07/21)
The invention relates to a wide-spectrum-band near-infrared absorption dye which is mainly prepared by the following steps: by taking a mixture consisting of a compound as shown in a formula A and a compound as shown in a formula B as an initial raw material, in the presence of a catalyst, keeping the mixture and metal salt in a high-boiling-point solvent at a reflux temperature for 4-6 hours, and carrying out post-treatment to obtain a target object C. The absorption wavelength of the near-infrared dye provided by the invention can cover 650 nm to 780 nm.
Intramolecular aggregation and optical limiting properties of triazine-linked mono-, bis- and tris-phthalocyanines
Chen, Jun,Zhang, Tao,Wang, Shuangqing,Hu, Rui,Li, Shayu,Ma, Jin Shi,Yang, Guoqiang
, p. 426 - 433 (2015/05/20)
A series of triazine-linked mono-, bis- and tris-phthalocyanines are synthesized, intramolecular aggregation is found in bis- and tris-phthalocyanines via π-π stacking interaction. Theoretical and experimental studies reveal the formation of the intramole
