Electronic Resource
College Park, Md.
:
American Institute of Physics (AIP)
The Journal of Chemical Physics
82 (1985), S. 1317-1322
ISSN:
1089-7690
Source:
AIP Digital Archive
Topics:
Physics
,
Chemistry and Pharmacology
Notes:
Gaseous ClNCO exhibits a continuous ultraviolet absorption feature peaked near 250 nm. Photolysis of this compound at 249 nm produces bright blue emission identified as the A 2Σ+→X 2Π transition in NCO. The excited NCO arises from a collisional process in which N(2D) atoms, produced directly by the photodissociation, react with the parent ClNCO. The rate constant for this process is k=(2.1±0.2)×10−11 cm3 s−1. From production of N(2D) by the 249 nm photolysis, the heat of formation of gaseous ClNCO is inferred to be ΔHf(ClNCO)≥52.9 kcal mol−1. ClNCO is metastable with respect to the ground electronic states of NCl and CO by 8.2 kcal mol−1.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.448962
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