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Synthesis, characterization and third order nonlinear optical properties of trans-A2B-type cobalt corroles
New Journal of Chemistry ( IF 2.7 ) Pub Date : 2020-12-18 , DOI: 10.1039/d0nj05436d Guifen Lu 1, 2, 3 , Peng Zhang 1, 2, 3 , Yuanyuan Fang 1, 2, 3 , Yongjie Gao 1, 2, 3 , Qikang Hu 1, 2, 3
New Journal of Chemistry ( IF 2.7 ) Pub Date : 2020-12-18 , DOI: 10.1039/d0nj05436d Guifen Lu 1, 2, 3 , Peng Zhang 1, 2, 3 , Yuanyuan Fang 1, 2, 3 , Yongjie Gao 1, 2, 3 , Qikang Hu 1, 2, 3
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A series of trans-A2B cobalt corroles, represented as [Cor(p-RPh)2(p-NO2Ph)]Co(PPh3) (1–5), where Cor is trianion of the corrole, R is a CN, F, CH3, C(CH3)3 or PhCH2O at the para-position of the 5- and 15-meso-phenyl rings of the macrocycle, and NO2 is at the para-position of the 10-meso-phenyl rings of the macrocycle, were designed and synthesized. Structural elucidation of the investigated cobalt corroles was carried out using common spectroscopic methods such as 1H-NMR, FT-IR, and UV-vis spectroscopy and MALDI-TOF-MS. Each cobalt corrole undergoes two reversible one-electron oxidations and three reductions with E1/2 values being linearly related to the sum of the Hammett substituent constants (∑σ). The third-order nonlinear optical (NLO) properties of these corroles were evaluated in DMF using the Z-scan technique characterized as showing a nonlinear reverse saturation absorption and self-defocusing behavior. The values of large nonlinear refractive index (n2) and the two-photon absorption (β) coefficients were in the range of (−) 1.25–1.50 × 10−13 cm2 W−1 and (1.05–1.45) × 10−9 cm W−1, respectively, making the current cobalt corroles a promising possibility for device realization.
中文翻译：
反式A2B型钴的合成，表征及三阶非线性光学性质
一系列反式-A 2 B钴盐，表示为[Cor（p -RPh）2（p -NO 2 Ph）] Co（PPh 3）（1-5），其中Cor是该甲氧基的三阴离子，R为一个CN，F，CH 3，C（CH 3）3或物理信道2在将O对5-和15-位上的内消旋的大环的苯基环，和NO 2是在对位的10位上的-中观设计并合成了大环的-苯基环。使用常见的光谱方法，例如1 H-NMR，FT-IR和UV-vis光谱以及MALDI-TOF-MS ，对所研究的钴精油进行结构解析。每个钴corrole经历两个可逆的单电子氧化三个减与Ë 1/2值被线性相关的哈米特取代基常数的总和（＆Sigma; σ）。使用Z扫描技术在DMF中评估了这些分子的三阶非线性光学（NLO）特性，该技术的特征是表现出非线性反向饱和吸收和自散焦行为。大非线性折射率（n 2）和双光子吸收（β）系数分别在（-）1.25–1.50×10 -13 cm 2 W -1和（1.05–1.45）×10 -9 cm W -1的范围内。当前的钴腐蚀了实现器件的广阔前景。
更新日期：2021-01-18
中文翻译：
反式A2B型钴的合成，表征及三阶非线性光学性质
一系列反式-A 2 B钴盐，表示为[Cor（p -RPh）2（p -NO 2 Ph）] Co（PPh 3）（1-5），其中Cor是该甲氧基的三阴离子，R为一个CN，F，CH 3，C（CH 3）3或物理信道2在将O对5-和15-位上的内消旋的大环的苯基环，和NO 2是在对位的10位上的-中观设计并合成了大环的-苯基环。使用常见的光谱方法，例如1 H-NMR，FT-IR和UV-vis光谱以及MALDI-TOF-MS ，对所研究的钴精油进行结构解析。每个钴corrole经历两个可逆的单电子氧化三个减与Ë 1/2值被线性相关的哈米特取代基常数的总和（＆Sigma; σ）。使用Z扫描技术在DMF中评估了这些分子的三阶非线性光学（NLO）特性，该技术的特征是表现出非线性反向饱和吸收和自散焦行为。大非线性折射率（n 2）和双光子吸收（β）系数分别在（-）1.25–1.50×10 -13 cm 2 W -1和（1.05–1.45）×10 -9 cm W -1的范围内。当前的钴腐蚀了实现器件的广阔前景。
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