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Isotopic Labelling of Confined Carbyne
Author(s) -
Cui Weili,
Shi Lei,
Cao Kecheng,
Kaiser Ute,
Saito Takeshi,
Ayala Paola,
Pichler Thomas
Publication year - 2021
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.202017356
Subject(s) - carbyne , labelling , carbon fibers , isotope , materials science , isotopic labeling , carbon chain , yield (engineering) , carbon nanotube , chemistry , nanotechnology , chemical physics , chemical engineering , organic chemistry , composite material , nuclear physics , catalysis , physics , biochemistry , carbene , composite number , engineering
Carbyne is a one‐dimensional allotrope of carbon consisting of a linear chain of carbon atoms bonded to each other with exceptional strength. Its outstanding mechanical, optical, and electronic properties have been theoretically predicted, but its stability has only been achieved when grown encapsulated in the hollow core of carbon nanotubes. One of the advantages of this confinement is that its properties can be controlled by the chain's length and surrounding environment. We investigated an alternative way of gaining control of its properties is using isotope labelling as tuning mechanism. The optimized liquid precursor was first chosen among several options, which can greatly enhance the yield of the confined carbyne. Then isotopic labelled liquid precursor was encapsulated for further synthesis of isotopic labelled confined carbyne. This allowed us to obtain pioneering results on isotope engineered carbyne with around 11.9 % of 13 C‐labelling using 13 C‐methanol as precursor.