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Metallophthalocyanine: aggregation and nonlinear optics

机译：金属酞菁：聚集和非线性光学

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Abstract: Novel two-dimensional conjugated systems have been developed for second- and third-order nonlinear optics. Four types of asymmetrically substituted macrocycles and non-aggregated phthalocyanines were synthesized and their second- and third-order nonlinear optical properties were characterized: meso-monosubstituted octaethyl metalloporphyrins, $beta@- monosubstituted tetraphenyl metalloporphyrins, mono (tert-butyl) vanadyl phthalocyanine, tris (tert-butyl) mononitro metallophthalocyanines, and hexadeca (trifluoroethoxy) metallophthalocyanines. Control of molecular packing in asymmetric vanadyl phthalocyanine was described in terms of the enhancement of the third-order nonlinear optical susceptibility. No evidence of molecular aggregation was observed in optical absorption and electroabsorption spectra for hexadeca (trifluoroethoxy) metal-free and vanadyl phthalocyanines. The effects of the substituents and metallation on the dipole moment for asymmetric porphyrins is discussed. A preliminary investigation of the second-order nonlinear optical responses for Z-type Langmuir-Blodgett films and poled molecularly doped polymer is presented. !17
机译：摘要：已经为二阶和三阶非线性光学系统开发了新型的二维共轭系统。合成了四种类型的不对称取代的大环化合物和非聚集的酞菁类化合物，并表征了它们的二阶和三阶非线性光学性质：内-单取代的八乙基金属卟啉，$β-单取代的四苯基金属卟啉，单（叔丁基）钒基酞菁，三（叔丁基）单硝基金属酞菁和十六（三氟乙氧基）金属酞菁。根据增强三阶非线性光学敏感性，描述了不对称钒基酞菁中分子堆积的控制。十六进制（三氟乙氧基）无金属和钒基酞菁的光吸收和电吸收光谱中没有观察到分子聚集的迹象。讨论了取代基和金属化对不对称卟啉偶极矩的影响。初步研究了Z型Langmuir-Blodgett薄膜和极化分子掺杂聚合物的二阶非线性光学响应。 ！17

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