25938-83-4Relevant academic research and scientific papers
Photodissociation of gaseous NCl3 at 193 and 249 nm
Coombe,Gilbert,Beaton,Mateljevic
, p. 8422 - 8426 (2002)
The optical absorption spectrum of gaseous NCl3 was measured from 170 to 350 nm, and experiments were performed in which this molecule was irradiated with a pulsed laser at 193 nm and 249 nm. Photodissociation channels accessible at these wavelengths can produce fragments in singlet, doublet, or triplet manifolds of states. Photodissociation at 249 nm produces prompt banded emission in the visible and near-IR spectral regions that is tentatively ascribed to transitions in NCl2, suggesting that the dissociation channel leading to doublet fragments (NCl2 and Cl) is operative at this photolysis wavelength. The absence of emission from excited singlet states of NCl or excited triplet states of Cl2 suggests that the singlet and triplet dissociation channels are not important at 249 nm. For photolysis at 193 nm, prompt emission is observed from both the a1Δ and b1Σ+ excited states of NCl. No emission is observed from either NCl2 or excited triplet states of Cl2. A measure of the quantum yield for NCl(a1Δ) production by the 193 nm photodissociation of NCl3 was determined by observing the transfer of energy from excited NC1 to iodine atoms in the pulsed photolysis system. This method suggests that the yield has a value of 0.8 ± 0.2.
Photolysis of NCl3 in Low-Temperature Argon Matrices
Gilbert, Julanna V.,Smith, Londa J.
, p. 7278 - 7281 (2007/10/02)
NCl3 has been photolyzed in low-temperature argon matrices and the products identified via the IR spectra of the matrices.For matrices in which the NCl3 was not aggregated with Cl2, NCl was produced at all photolysis wavelengths used (220, 248, 280, and 3
