Abstract
The reaction of active nitrogen with tellurium tetrachloride gives rise to the emission of: a) the first positive system of nitrogen (B 3ν-A 3Σ + u) with an abnormal vibrational intensity distribution; b) tellurium lines emitted from 3S 1 and 5S 2 levels; c) the 5S 2 level is 30 times more populated than the nearest 3S 1. The following mechanism takes these spectroscopic observations into account: in the first step formation of a quadruplet excited NTe intermediate is suggested, either by a preassociation mechanism, or by collisional excitation with N 2 (A 3Σ + u. In a second step this quadruplet NTe could react with N( 4S) and N 2(A 3Σ + u) giving: NTe( 4) + N( 4S) → N 2(B 3П g) ν′<10 + Te( 3P) and NTe( 4A) + N 2(A 3 Σ + u → NTe( 4B) + N 2( 1Σ + g), followed by NTe 4B) → Te 5S 2) + N( 4S).
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