• DOI:10.1063/1.450588
• Corpus ID: 96126854

The Zeeman effect as an aid to electronic assignment: The NiH A 2Δ5/2 state

@article{Gray1986TheZE,
  title={The Zeeman effect as an aid to electronic assignment: The NiH A 2$\Delta$5/2 state},
  author={Jeffrey A. Gray and R. William Field},
  journal={Journal of Chemical Physics},
  year={1986},
  volume={84},
  pages={1041-1042},
  url={https://api.semanticscholar.org/CorpusID:96126854}
}

• J. Gray, R. Field
• Published 15 January 1986
• Physics
• Journal of Chemical Physics

Sub‐Doppler Zeeman spectra of the B 2Δ5/2–X 2Δ5/2(1–0) Q(2.5) line at 17 462.95 cm−1, the A 2Δ5/2–X 2Δ5/2 (1–0) Q(2.5) line at 17 021.54 cm−1, and the 2Φ7/2–X 2Δ5/2(0–0) R(2.5) line at 17 132.48 cm−1 were recorded at magnetic fields up to 900 G. The lowest‐j levels of the B 2Δ5/2, X 2Δ5/2, and 2Φ7/2 states are found to behave as nearly pure Hund’s case (a)basis states with g values (Λ+2Σ) near g=3,3, and 4, respectively, but the A 2Δ5/2 is found to have a g value very different from that… 

Sub‐Doppler Zeeman spectra of the B 2Δ5/2–X 2Δ5/2(1–0) Q(2.5) line at 17 462.95 cm−1, the A 2Δ5/2–X 2Δ5/2 (1–0) Q(2.5) line at 17 021.54 cm−1, and the 2Φ7/2–X 2Δ5/2(0–0) R(2.5) line at 17 132.48 cm−1 were recorded at magnetic fields up to 900 G. The lowest‐j levels of the B 2Δ5/2, X 2Δ5/2, and 2Φ7/2 states are found to behave as nearly pure Hund’s case (a)basis states with g values (Λ+2Σ) near g=3,3, and 4, respectively, but the A 2Δ5/2 is found to have a g value very different from that required for a 2Δ5/2 state. Present experiments are unable to distinguish between the 4Φ5/2 (g=2) and 4Π5/2 (g=4) reassignment possibilities for the ab initio inexplicable A 2Δ5/2 state.