Abstract

The laser magnetic resonance (LMR) spectrum of NCN in its ground3Σ−gstate has been recorded for the first time, using a CO laser operating near the ν3vibrational band origin of NCN (∼1466.5 cm−1). As a result of small rotational and spin splittings, the LMR spectrum is very complex, particularly near the band origin. The LMR data have been fit in conjunction with very recent FTIR data, using some ground state parameters from a related study of the electronic spectrum performed in our laboratory, to yield accurate molecular parameters for NCN in its ground and excited vibrational states.

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