Effect of aza substitution on the photophysical and electrochemical properties of porphycenes: Characterization of the near-IR-absorbing photosensitizers 2,7,12,17-tetrakis(p-substituted phenyl)-3,6,13,16-tetraazaporphycenes

Rubio N; Sanchez-Garcia D; Jimenez-Banzo A; Rey O; Borrell JI; Teixido J; Nonell S

首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Effect of aza substitution on the photophysical and electrochemical properties of porphycenes: Characterization of the near-IR-absorbing photosensitizers 2,7,12,17-tetrakis(p-substituted phenyl)-3,6,13,16-tetraazaporphycenes

【24h】

Effect of aza substitution on the photophysical and electrochemical properties of porphycenes: Characterization of the near-IR-absorbing photosensitizers 2,7,12,17-tetrakis(p-substituted phenyl)-3,6,13,16-tetraazaporphycenes

机译：氮杂取代对卟啉的光物理和电化学性质的影响：吸收近红外光的光敏剂2,7,12,17-四（对取代苯基）-3,6,13,16-四氮杂卟啉的表征

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相似文献
相关主题

摘要

The need for new photodynamic-therapy photosensitizers has stimulated the search of new families of compounds absorbing strongly in the 700-900 nm range, the region where tissue is most transparent to radiation capable to induce the photodynamic effect. Using computational chemistry techniques, 3,6,13,16-tetraazaporphycenes were previously identified as interesting target candidates. This work reports on the photophysical and electrochemical properties of selected members of this new family of macrocycles. Compared to porphycenes, the tetra-aza counterparts show stronger absorption in the near-infrared, lower-lying singlet and triplet excited states, and substantially larger internal conversion quantum yield (Phi(IC) = 0.93). Energy transfer to oxygen is observed, which results in the formation of the cytotoxic species singlet oxygen. The process is found to be reversible, consistent with a triplet-energy value close to that of singlet oxygen.

机译：对新型光动力疗法光敏剂的需求刺激了对在700-900 nm范围内强烈吸收的新化合物家族的研究，该区域是组织对能够诱发光动力效应的辐射最透明的区域。使用计算化学技术，以前已将3,6,13,16-四氮杂卟啉确定为有趣的目标候选物。这项工作报告了这个新的大环族成员的选定成员的光物理和电化学性质。与卟啉相比，四氮杂对映体在近红外，位于较低的单线态和三线态激发态下显示出更强的吸收，并且内部转换量子产率大大提高（Phi（IC）= 0.93）。观察到能量转移到氧气，这导致细胞毒性物质单线态氧的形成。发现该过程是可逆的，与接近单重态氧的三重态能量值一致。

著录项

来源
《The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory》 |2006年第10期|共8页
作者
Rubio N; Sanchez-Garcia D; Jimenez-Banzo A; Rey O; Borrell JI; Teixido J; Nonell S;
展开▼
作者单位

展开▼
收录信息
原文格式 PDF
正文语种 eng
中图分类
关键词
REVERSIBLE ENERGY-TRANSFER; PHOTODYNAMIC THERAPY; SINGLET-OXYGEN; BETA-CAROTENE; SILICON NAPHTHALOCYANINE; CHROMIUM(III) COMPLEXES; EXPANDED PORPHYRINS; TRIPLET ENERGY; QUANTUM YIELDS; PHTHALOCYANINES;

机译：可逆能量传递;光动力疗法;单氧;BET-胡萝卜素;硅萘酞菁;铬（III）配合物;扩展的卟啉;三重能;季铵盐;酞菁;

相似文献

外文文献
中文文献
专利

1. Effect of aza substitution on the photophysical and electrochemical properties of porphycenes: Characterization of the near-IR-absorbing photosensitizers 2,7,12,17-tetrakis(p-substituted phenyl)-3,6,13,16-tetraazaporphycenes [J] . Rubio N, Sanchez-Garcia D, Jimenez-Banzo A, The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory . 2006,第10期

机译：氮杂取代对卟啉的光物理和电化学性质的影响：吸收近红外光的光敏剂2,7,12,17-四（对取代苯基）-3,6,13,16-四氮杂卟啉的表征
2. Physicochemical characterization of sigma-bonded aryl iron(III) porphycenes. X-ray structures of (EtioPc)Fe(3,5-C6F2H3) and (EtioPc)In(C6H5), where EtioPc is the dianion of 2,7,12,17-tetraethyl-3,6,13,16-tetramethylporphycene [J] . Kadish KM., Van Caemelbecke E., Aukauloo AM., Inorganic Chemistry: A Research Journal that Includes Bioinorganic, Catalytic, Organometallic, Solid-State, and Synthetic Chemistry and Reaction Dynamics . 1998,第24期

机译：σ键合的芳基铁（III）卟啉的理化特性。（EtioPc）Fe（3,5-C6F2H3）和（EtioPc）In（C6H5）的X射线结构，其中EtioPc是2,7,12,17-四乙基-3,6,13,16-四甲基卟啉的二价阴离子
3. Photosensitization of human skin cell lines by ATMPn (9-acetoxy-2,7,12,17-tetrakis-(#beta#-methoxyethyl)-porphycene) in vitro: mechanism of action [J] . Sonja Fickweiler, Christoph Abels, Sigrid Karrer, Journal of Photochemistry and Photobiology, B. Biology: Official Journal of the European Society for Photobiology . 1999,第1期

机译：ATMPn（9-乙酰氧基-2,7,12,17-四-（＃beta＃-甲氧基乙基）-卟啉）对人皮肤细胞系的光敏作用：作用机理
4. Photophysical and lasing characterization of neat films of 4-methyl-TPD and of a 4-methyl-TPD phenyl substituted MEH-PPV copolymer [C] . W. Holzer, A. Penzkofer, R. Philip, Conference on applications of photonic technology . 2002

机译：用4-甲基-TPD和4-甲基-TPD苯基取代的MeH-PPV共聚物的纯膜的光物理和激光表征
5. Synthesis, characterization, and photophysical properties of multi-substituted imidazoles. [D] . Alla, Jhansi. 2013

机译：多取代咪唑的合成，表征和光物理性质。
6. Photophysical Characterization of Imidazolium-Substituted Pd(II) In(III) and Zn(II) Porphyrins as Photosensitizers for Photodynamic Therapy [O] . Hooi Ling Kee, Jayeeta Bhaumik, James R. Diers, -1

机译：咪唑鎓取代的Pd（II）In（III）和Zn（II）卟啉作为光敏剂的光物理特性
7. New synthesis routes, characterization, electrochemical and spectral properties of p-substituted N-phenylpyrroles. Substituent effects [O] . A. K. D. Diaw, A. Yassar, D. Gningue-Sall, 2008

机译：p-取代的N-苯基吡咯的新合成路线，表征，电化学和光谱性质。取代基效应

Effect of aza substitution on the photophysical and electrochemical properties of porphycenes: Characterization of the near-IR-absorbing photosensitizers 2,7,12,17-tetrakis(p-substituted phenyl)-3,6,13,16-tetraazaporphycenes

摘要

著录项

相似文献

相关主题

期刊订阅