The Pure Rotational Spectra of ZnO in the Excited a^{3}Π_i State

Details The Pure Rotational Spectra of ZnO in the Excited a^{3}Π_i State The Pure Rotational Spectra of ZnO in the Excited a^{3}Π_i State

Jun 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009mss..confefc01z&link_type=abstract

"International Symposium On Molecular Spectroscopy, 64th Meeting, Held 22-26 June, 2009 at Ohio State University. http://molspec

Computer Science

Microwave

Scientific paper

The pure rotational spectra of ZnO in the excited a^{3}Π_i electronic state have been measured using direct absorption sub-millimeter techniques. This molecule was synthesized by reacting zinc vapor with N_2O in the presence of a DC discharge. Nine rotational transitions were recorded for the ^{64}ZnO, ^{66}ZnO, and ^{68}ZnO isotopomers in the v=0 state and data for the main isotopomer was measured in the v=1 state. All three spin components were observed for this state, each exhibiting lambda-doubling. The data were fit with a Hund case(a) Hamiltonian and rotational, spin-orbit, spin-spin, and lambda-doubling constants established. A bond length of 1.8436 Å was determined for this excited state, which is about 0.14 Å larger than that of the ground state.

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