Journal
JOURNAL OF CHEMICAL PHYSICS
Volume 130, Issue 23, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3152714
Keywords
ab initio calculations; atmospheric chemistry; chemical exchanges; free radical reactions; molecule-molecule reactions; organic compounds; reaction kinetics theory
Funding
- U.S. National Science Foundation [CHE-0627854]
Ask authors/readers for more resources
The crossed molecular beams reaction of ground state cyano radicals (CN) with diacetylene (HCCCCH) was studied in the laboratory under single collision conditions. Combining the derived center-of-mass translational energy and angular distributions with novel electronic structure calculations, we show that the linear cyanodiacetylene molecule (HCCCCCN) is the sole reaction product. Our study provided no substantiation of two alternative products which have been suggested previously: cyanoacetylene (HCCCN), speculated to be synthesized via the exchange of the ethynyl by the cyano group, and the 1,3-butadiynyl radical (HCCCC), thought to be formed via hydrogen abstraction. The unambiguous identification of cyanodiacetylene formed in an exoergic, barrierless bimolecular reaction of the cyano radical with diacetylene strongly suggests that cyanodiacetylene can be also synthesized via this process in the interstellar medium (cold molecular clouds) and in hydrocarbon-rich atmospheres of planets and their moons such as Titan.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available