1,2,5,6-Naphthalenediimide-based conjugated copolymers linked by ethynyl units

Liu, Bing-yong; Yang, Xiaochun; Ge, Congwu; Dou, Jianmin; Li, Dacheng; Gao, Xike

doi:10.1007/s10118-017-1988-4

Cited by 5 publications

(3 citation statements)

References 65 publications

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“…also synthesized two ethynyl‐linked 1,2,5,6‐naphthalenediimide‐based conjugated copolymers comprising of benzothiadiazole, 1,4‐bis(dodecyloxy)‐benzene units through Sonogashira coupling polymerization. [ 33 ] These ethynyl‐ linked copolymers show pure electron transporting properties and fluorescent characteristics, suggesting their potential application as semiconducting fluorescent materials.…”

Section: 256‐ndis and Their Based Semiconductorsmentioning

confidence: 99%

1,2,5,6‐Naphthalene Diimides: A Class of Promising Building Blocks for Organic Semiconductors^†

Zhao

et al. 2023

Chin. J. Chem.

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What is the most favorite and original chemistry developed in your research group?Chemistry of -functional materials by using naphthalene and azulene as the basic structural units. How do you get into this specific field? Could you please share some experiences with our readers?This comes from my previous research experience, independent thinking and academic exchange & discussion. When I was a PhD student, my research topic focused on p-type organic semiconductors. Since I independently carried out scientific research, my research interest turned to developing more challenging n-type organic semiconductors by using core-expanded 1,4,5,8-naphthalene diimides (NDIs). Later on, 1,2,5,6-NDIs as high-performance organic semiconductors, the topic of this review paper, entered our study perspective based on the concept of isomerism. Also, based on the concept of isomerism and academic discussion, azulene, the isomer of naphthalene with unique chemical structure and physicochemical properties, became the dominant building block for constructing novel -functional materials in my group. How do you supervise your students?Select a research topic with scientific significance and certain challenges, let students consult and intensively read relevant literatures and obtain research inspiration, basic knowledge, experimental skills, writing skills, etc. Encourage students to think independently, try more, and pay more attention to communication and cooperation. Fully train students to write research papers independently. The last but not the least, advocate the academic spirit of being innovative, pursuing excellence as well as rigorous scholarship. What is the most important personality for scientific research? Curiosity and perseverance. What are your hobbies? Reading and walking. If you have anything else to tell our readers, please feel free to do so. No one can imprison your mind and hold your hand to prevent you from doing research work, follow your heart to do what you like and different from others.

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Section: 256‐ndis and Their Based Semiconductorsmentioning

confidence: 99%

1,2,5,6‐Naphthalene Diimides: A Class of Promising Building Blocks for Organic Semiconductors^†

Zhao

et al. 2023

Chin. J. Chem.

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“…两个分子均具有平面刚性的共轭骨架和相似的电子云分布, 其 HOMO 能级主要分布在中间的萘核上, LUMO 能级则沿分子的长轴方向分布. 其 DFT 计算结果表明, 1,2,5,6-NDI 的 HOMO/LUMO 能级都高于 1,4,5,8-NDI 的 HOMO/LUMO 能级, 表明五元环酰亚胺基团的拉电子能力低于六元环酰亚胺的拉电子能力 [32,33] .…”

Section: 引言unclassified

Design, synthesis and single-molecular conductivity of isomeric naphthalene diimides

Peng¹,

Bai²,

Li³

et al. 2021

Sci. Sin.-Chim

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Two isomeric 4-methylthiophenylethynyl substituted 1,4,5,8-naphthalene diimide (1,4,5,8-NDI) and 1,2,5,6-naphthalene diimide (1,2,5,6-NDI) derivatives 1 and 2 were designed and synthesized. The physicochemical properties of 1 and 2 were studied by means of UV-vis spectra, electrochemical measurements and DFT calculations. The structural differences between 1 and 2 led to their different physicochemical properties and single-molecule device performance. Compound 1 based on 1,4,5,8-NDI has lower HOMO/LUMO energy levels and narrower band gap, is more conducive to electron transport relative to compound 2 with 1,2,5,6-NDI core. The single molecular junctions of 1 and 2 were prepared by Scanning Tunneling Microscope-Break Junctions (STM-BJ) technique, and their conductive behaviors were studied. When the potential of 0.1 V was applied in the ionic liquid BMIPF6, the conductance of single molecular junctions of 1 and 2 were 10 -3.70 G 0 (15.5 nS) and10 -3.90 G 0 (9.8 nS), respectively, and the single-molecule device based 1 has a better conductivity

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“…The principle of additivity proposed by Scheil,6) used to predict the transformation process under non-isothermal conditions, has been applied to the kinetic study on the starting temperature of ferrite transformation. 7,8) However, alloying element partition at the α/γ interface is not taken into account in a physical way for Ar 3 calculation according to the additivity principle. As the diffusivities of substitutional alloying elements are usually 4 or 5 orders of magnitude smaller than that of interstitial carbon, 9) the partition behavior of alloying elements will have a very significant effect on the growth kinetics of proeutectoid ferrite.…”

Section: Introductionmentioning

confidence: 99%

Prediction of Ar<sub>3</sub> during Very Slow Cooling in Low Alloy Steels

et al. 2016

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Considering the partition behavior of substitutional alloying elements, a computing method is developed to predict the starting temperature of proeutectoid ferrite transformation (Ar 3 ) in low alloy steels during cooling. The paraequilibrium γ /(α + γ ) phase boundary temperature (denoted Para Ae 3 ) and local equilibrium partition to no-partition transition temperature are calculated using Thermo-Calc software in Fe-C-M 1 , Fe-C-M 1 -M 2 and Fe-C-M 1 -M 2 -M 3 (M 1 , M 2 and M 3 denote substitutional alloying elements) low alloy steels. Compared with Ar 3 taken from published CCT diagrams, it is found that the transition temperature from partitioned to no-partitioned growth agrees relatively well with Ar 3 when the cooling rate is less than 1°C/ min.

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1,2,5,6-Naphthalenediimide-based conjugated copolymers linked by ethynyl units

Cited by 5 publications

References 65 publications

1,2,5,6‐Naphthalene Diimides: A Class of Promising Building Blocks for Organic Semiconductors^†

1,2,5,6‐Naphthalene Diimides: A Class of Promising Building Blocks for Organic Semiconductors^†

Design, synthesis and single-molecular conductivity of isomeric naphthalene diimides

Prediction of Ar<sub>3</sub> during Very Slow Cooling in Low Alloy Steels

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1,2,5,6-Naphthalenediimide-based conjugated copolymers linked by ethynyl units

Cited by 5 publications

References 65 publications

1,2,5,6‐Naphthalene Diimides: A Class of Promising Building Blocks for Organic Semiconductors†

1,2,5,6‐Naphthalene Diimides: A Class of Promising Building Blocks for Organic Semiconductors†

Design, synthesis and single-molecular conductivity of isomeric naphthalene diimides

Prediction of Ar<sub>3</sub> during Very Slow Cooling in Low Alloy Steels

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Product

Resources

About

1,2,5,6‐Naphthalene Diimides: A Class of Promising Building Blocks for Organic Semiconductors^†

1,2,5,6‐Naphthalene Diimides: A Class of Promising Building Blocks for Organic Semiconductors^†