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Can I read Pyridinic Nitrogen Modification for Selective Acetylenic Homocoupling on Au on EtoBox?
Pyridinic Nitrogen Modification for Selective Acetylenic Homocoupling on Au by Xuechao Li; Kaifeng Niu; Sai Duan; Yanning Tang; Zhengming Hao; Zhichao Xu; Haitao Ge; Johanna Rosen; Jonas Björk; Haiming Zhang; Xin Xu; Lifeng Chi is a Chemistry article available to read on EtoBox.
What is Pyridinic Nitrogen Modification for Selective Acetylenic Homocoupling on Au about?
On-surface acetylenic homocoupling has been proposed to construct carbon nanostructures featuring sp hybridization. However, the efficiency of linear acetylenic coupling is far from satisfactory, often resulting in undesired enyne products or cyclotrimerization products due to the lack of strategies to enhance chemical selectivity. Herein, we inspect the acetylenic homocoupling reaction of polarized terminal alkynes (TAs) on Au(111) with bond-resolved scanning probe microscopy. The replacement of benzene with pyridine moieties significantly prohibits the cyclotrimerization pathway and facilitates the linear coupling to produce well-aligned N-doped graphdiyne nanowires. Combined with density functional theory calculations, we reveal that the pyridinic nitrogen modification substantially differentiates the coupling motifs at the initial C-C coupling stage (head-to-head vs head-to-tail), which is decisive for the preference of linear coupling over cyclotrimerization.
Who reads Pyridinic Nitrogen Modification for Selective Acetylenic Homocoupling on Au?
It is typically read by researchers, students, and practitioners in Chemistry.
- Author
- Xuechao Li; Kaifeng Niu; Sai Duan; Yanning Tang; Zhengming Hao; Zhichao Xu; Haitao Ge; Johanna Rosen; Jonas Björk; Haiming Zhang; Xin Xu; Lifeng Chi
- Publisher
- American Chemical Society (ACS)
- Published
- 2023
- Language
- EN
- Field
- Chemistry (Physical Sciences)