Solid-State Pathway Control via Reaction-Directing Heteroatoms: Ordered Pyridazine Nanothreads through Selective Cycloaddition
Journal Article
·
· Journal of the American Chemical Society
- Carnegie Inst. of Science, Washington, DC (United States)
- Donostia International Physics Center (DIPC), San Sebastian (Spain); Basque Foundation for Science, Bilbao (Spain)
- Univ. of Chicago, IL (United States)
- Argonne National Lab. (ANL), Lemont, IL (United States)
Nanothreads are one-dimensional nanomaterials comprised of a primarily sp3 hydrocarbon backbone. They are typically formed through cycloaddition reactions induced by compression of small molecules to high pressures. Although nanothreads have been synthesized from a range of small molecule precursors (e.g., benzene, pyridine, aniline), the ability to control reaction pathways to produce atomically precise nanothreads with distinct chemical structures remains a difficult challenge. In this study, we show how heteroatoms incorporated within starting precursors can serve as “thread directing” groups by selecting for specific cycloaddition reaction pathways. By using a less-reactive diazine group within a six-membered aromatic ring, we successfully predict and synthesize the first carbon nanothread material derived from pyridazine (1,2-diazine, C4H4N2). Compared with previous nanothreads, the synthesized polypyridazine, shows a predominantly uniform chemical structure with exceptional long-range order, allowing for structural characterization using vibrational spectroscopy and X-ray diffraction. The results demonstrate how thread-directing groups can be used for precise reaction pathway control and the formation of chemically precise nanothreads with a high degree of structural order.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- US Army Research Office; USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division
- Grant/Contract Number:
- AC02-06CH11357; FG02-94ER14466
- OSTI ID:
- 1869164
- Journal Information:
- Journal of the American Chemical Society, Journal Name: Journal of the American Chemical Society Journal Issue: 5 Vol. 144; ISSN 0002-7863
- Publisher:
- American Chemical Society (ACS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Synthesis and Post-Processing of Chemically Homogeneous Nanothreads from 2,5-Furandicarboxylic Acid
Surface-enhanced raman spectra of pyrazine, pyrimidine, and pyridazine adsorbed on silver sols
All the Ways To Have Substituted Nanothreads
Journal Article
·
Thu Feb 23 19:00:00 EST 2023
· Angewandte Chemie (International Edition)
·
OSTI ID:2419427
Surface-enhanced raman spectra of pyrazine, pyrimidine, and pyridazine adsorbed on silver sols
Journal Article
·
Wed Feb 24 23:00:00 EST 1988
· J. Phys. Chem.; (United States)
·
OSTI ID:5023293
All the Ways To Have Substituted Nanothreads
Journal Article
·
Wed Dec 20 19:00:00 EST 2017
· Journal of Chemical Theory and Computation
·
OSTI ID:1470634