Nitrogen-doped star-shaped polycyclic aromatic hydrocarbons based on fused triazatruxenes: synthesis and optoelectronic properties

2017 ◽  
Vol 41 (22) ◽  
pp. 13619-13624 ◽  
Author(s):  
Cheng-Fang Liu ◽  
Cheng Cheng ◽  
Yi Jiang ◽  
Wen-Yong Lai ◽  
Wei Huang
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Optoelectronic Properties ◽  
Nitrogen Doped ◽  
Polycyclic Aromatic

A novel series of nitrogen-doped star-shaped polycyclic aromatic hydrocarbons based on naphthalenes-fused triazatruxenes with fine-tunable optoelectronic properties have been developed.

Bottom-Up Synthesis of Nitrogen-Doped Polycyclic Aromatic Hydrocarbons

Synlett ◽  
2019 ◽  
Vol 31 (03) ◽  
pp. 211-222
Author(s):  
Junzhi Liu ◽  
Xinliang Feng
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Organic Synthesis ◽  
Aromatic Hydrocarbons ◽  
Efficient Method ◽  
Dipolar Cycloaddition ◽  
Bottom Up ◽  
Nitrogen Doped ◽  
Synthesis Strategy ◽  
Polycyclic Aromatic ◽  
Boron Nitrogen

Bottom-up organic synthesis serves as an efficient method to provide atomically precise heteroatom-doped polycyclic aromatic hydrocarbons (PAHs) with not only well-defined size and edge structures but also specific concentrations and positions of the heteroatoms. We provide a plenary account of the preparation of nitrogen-doped PAHs (N-PAHs) through 1,3-dipolar cycloaddition between different dipolarophiles, as well as pyrazine-type N-doped diaza-hexa-peri-hexabenzocoronene (diaza-HBC). Additionally, we present the synthesis of a class of helical N-charged PAHs, including one charged aza[5]helicene and two charged aza[4]helicenes. Moreover, the bottom-up organic synthesis strategy is further extended to the construction of novel nitrogen-boron-nitrogen (NBN)-containing PAHs. Finally, we discuss the synthesis of four-coordinate boron chromophores containing 6,12,18-tris(alkyl amine)-5,11,17-triazatrinaphthylene derivative ligands.1 Introduction2 Nitrogen-Doped PAHs Based on Dibenzo-9a-azaphenalene (DBAP)3 Cationic Nitrogen-Doped Helical PAHs4 Nitrogen–Boron–Nitrogen-Doped PAHs5 Conclusion and Outlook

scholarly journals Well-Defined Boron/Nitrogen-Doped Polycyclic Aromatic Hydrocarbons Are Active Electrocatalysts for the Oxygen Reduction Reaction

2019 ◽  
Vol 31 (6) ◽  
pp. 1891-1898 ◽  
Author(s):  
Rachel J. Kahan ◽  
Wisit Hirunpinyopas ◽  
Jessica Cid ◽  
Michael J. Ingleson ◽  
Robert A. W. Dryfe
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Aromatic Hydrocarbons ◽  
Reduction Reaction ◽  
Nitrogen Doped ◽  
Polycyclic Aromatic ◽  
Boron Nitrogen

scholarly journals Optoelectronic Properties of Polycyclic Aromatic Hydrocarbons of Various Sizes and Shapes: A DFT Study

2020 ◽  
Author(s):  
Ramachandran Rakhi ◽  
Cherumuttathu H Suresh
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Density Functional ◽  
Optoelectronic Properties ◽  
Frontier Molecular Orbital ◽  
Functional Theory ◽  
Practical Applications ◽  
Td Dft ◽  
Polycyclic Aromatic ◽  
Electron Withdrawing Group

Polycyclic aromatic hydrocarbons (PAHs) can be considered as graphene nanoflakes in which the edges are hydrogenated. Zigzag and armchair-edged PAHs possessing circular, parallelogram, rectangular and triangular shapes have been studied using M06L/6-31+G(d) level of density functional theory (DFT). Molecular electrostatic potential (MESP) analysis of the PAHs is done to characterize their electron distribution while the time-dependent DFT (TD-DFT) analysis was used for the absorption spectral analysis. MESP analysis clearly showed Clar’s sextet like electronic arrangement in armchair-edged systems whereas zigzag-edged ones showed significant electron localization towards the edges. TD-DFT analysis casts light upon the absorption features of these systems, which followed a linear trends in absorption maximum (lmax) for most of the armchair-edged systems with respect to the number of π-electrons. MESP analysis on the electron rich and electron deficient features of PAH systems led to the design of donor-spacer-acceptor type PAH-π-PAH systems (D-π-A systems) wherein a conjugated diene moiety functions as the π-spacer. Though these systems behaved weakly as D-π-A systems, with the introduction of electron donating functional group NMe2 on one PAH and electron withdrawing group COOH on the other led to the formation of strong D-π-A systems.  The MESP features, frontier molecular orbital (FMO) distribution, and absorption spectral features supported their strong D-π-A character. Among the different shapes studied, the rectangular PAH moiety showed the most efficient tuning of HOMO-LUMO gap. The optical and electronic data of PAH, PAH-π-PAH and functionalized PAH-π-PAH systems shed light upon possible tuning of their optoelectronic properties for practical applications.

Graphene-based metal and nitrogen-doped carbon composites as adsorbents for highly sensitive solid phase microextraction of polycyclic aromatic hydrocarbons

Nanoscale ◽  
2018 ◽  
Vol 10 (21) ◽  
pp. 10073-10078 ◽  
Author(s):  
Fuxin Wang ◽  
Yu Zheng ◽  
Junlang Qiu ◽  
Shuqin Liu ◽  
Yexiang Tong ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Carbon Composites ◽  
Nitrogen Doped ◽  
Fiber Coating ◽  
Highly Sensitive ◽  
Polycyclic Aromatic ◽  
Nitrogen Doped Carbon

A graphene-based metal and nitrogen-doped carbon is successfully developed and applied as an excellent fiber coating for SPME.

Imides modified benzopicenes: synthesis, solid structure and optoelectronic properties

2014 ◽  
Vol 12 (44) ◽  
pp. 8902-8910 ◽  
Author(s):  
Di Wu ◽  
Haojie Ge ◽  
Zhao Chen ◽  
Jinhua Liang ◽  
Jie Huang ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Optoelectronic Properties ◽  
Optoelectronic Materials ◽  
Solid Structure ◽  
Polycyclic Aromatic

Imide-modified polycyclic aromatic hydrocarbons can be widely applied in the field of optoelectronic materials.

Polycyclic Aromatic Hydrocarbons Obtained by Lateral Core Extension of Mesogenic Perylenes: Absorption and Optoelectronic Properties

2014 ◽  
Vol 20 (38) ◽  
pp. 12026-12031 ◽  
Author(s):  
Joachim Vollbrecht ◽  
Harald Bock ◽  
Christian Wiebeler ◽  
Stefan Schumacher ◽  
Heinz Kitzerow
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Optoelectronic Properties ◽  
Polycyclic Aromatic
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