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A high-resolution analysis of the (C)over-tilde(2)A(1)-(X)over-tilde(2)A(1) transition of CaNH2: Pure precession in polyatomic molecules

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JournalJournal of Chemical Physics
DatePublished - 22 Mar 1997
Issue number12
Volume106
Number of pages9
Pages (from-to)4860-4868
Original languageEnglish

Abstract

The high resolution spectrum of O-0(0) vibronic band of the (C) over tilde(2)A(1)-(X) over tilde(2)A(1) transition of CaNH2 was recorded with a laser ablation/supersonic molecular beam spectrometer. Approximately 140 lines of K'a=0<--K ''(a)=0 and the K'a=1<--K '' a=1 sub-bands were measured and combined with the previous (A) over tilde B-2(2)-(X) over tilde(2)A(1) and (B) over tilde(2)B(1)-(X) over tilde(2)A(1) results. A global fit of the data was carried out and the effective spectroscopic constants for the (X) over tilde, (A) over tilde, (B) over tilde, (C) over tilde states are reported. A complete set of spin-rotation constants (epsilon(alpha alpha)'s) are now available for the (A) over tilde(2)B(2), (B) over tilde(2)B(1) and (C) over tilde(2)A(1) states. The unpaired electron in these three excited states can be considered to be located in three p-orbitals (p(x), p(y), p(z)) centered on the metal atom. The simple pure procession model provides estimates for the 9 spin-rotation parameters in the (A) over tilde, (B) over tilde, and (C) over tilde states. (C) 1997 American Institute of Physics.

    Research areas

  • PHASE INORGANIC-CHEMISTRY, ORGANOMETALLIC FREE-RADICALS, LASER-INDUCED FLUORESCENCE, BEAM OPTICAL STARK, ELECTRONIC SPECTROSCOPY, EXCITATION-SPECTRA, X TRANSITIONS, CALCIUM, STRONTIUM, COMPLEXES

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