ISSN:
1089-7690
Source:
AIP Digital Archive
Topics:
Physics
,
Chemistry and Pharmacology
Notes:
The 000 A˜ 2B2–X˜ 2A1 visible band system of a supersonic molecular beam sample of calcium amide, CaNH2, recorded in the presence of a variable static electric field has been studied using high resolution laser induced fluorescence spectroscopy. The determined spectroscopic parameters are (in cm−1), origin=15 464.366 9(8); A″=13.057 4(9); B″=0.300 47(5); C″=0.292 88(5); εbb″=0.001 1(3); εcc″=0.001 1(3); A′=11.448 7(2); B′=0.307 1(1); C′=0.299 2(1); εaa′=8.238(2); εbb′=0.005 2(6); εcc′=0.055 7(6); Δsk=−0.060 8(5). The rotational parameters are interpreted to give an approximate r0 structure. The large spin-rotation parameter for the A˜ 2B2 state is discussed in terms of a second order spin–orbit interaction with other low-lying electronic states. Stark splitting of the PP11(1.5)+PQ12(0.5) branch feature was analyzed to produce a ground state permanent electric dipole moment, μ″, of 1.74(1) D. A comparison of μ″ with other monovalent calcium compounds is given. © 1995 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.470635
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