No abstract

B(N3)3 was isolated in a low-temperature argon matrix and its FTIR spectrum measured. The spectrum was consistent with the known gas-phase spectrum, and splitting due to the natural abundances of 10B and 11B was observed. Upon UV photolysis, new peaks at 2100, 1861, and 1803 cm-1 assigned to the linear molecule NNBN appeared as the B(N3)3 peaks decayed. Geometry optimizations and calculations of the ground-state frequencies for 10B and 11B isotopomers B(N3)3 [MP2/6-31G(d)] and NNBN [CCSD(T)/6-311G*] are reported, and the frequencies are compared to those observed in the IR spectra. The photolytic decomposition mechanism of B(N3)3 is discussed.

No abstract

Spectra and time profiles of the emission resulting from pulsed irradiation of NC13 at 248 and 308 nm were collected and analyzed. Two distinct spectral features were observed, one a long series of bands separated by 320 ± 30 cm-1, the second an unresolved emission underlying the bands. The two features exhibit different time behavior and lifetimes in the limit of zero pressure. The photochemistry is interpreted via a model which involves the interaction of three electronic states of NC13.

The primary and secondary reactions in the H + NFClz system have been studied by infrared chemiluminescence in a fast flow reactor at 300 K. The primary reaction is exclusively C1 atom abstraction to give HCl(v-0-4) + NFCl with a total rate constant of (1.9 f 0.4) X 10-" cm3 molecule-l s-1 and an inverted vibrational distribution of P r P 4