Rotational analysis of the O−O band of the first singletπ *-n system ofcis glyoxal-d1

  • D. A. Ramsay
  • C. Zauli


A rotational analysis of the O−O band of the first singlet (π *-n) system ofcis glyoxal-d1 has been carried out and the following principal constants obtained:A′=0.8085(1),B′=0.19515(4),C′=0.15713(6),A″=0.7958(1),B″=0.20279(4),C″=0.16197(6),ν 00 = 20517.99 cm−1.

These data have been combined with the rotational constants ofCurrie andRamsay [1] forcis glyoxal and the following molecular parameters derived: excited state −r(CH)=1.120±0.010 Å (assumed), r(CO)=1.250±0.015 Å, r(CC)=1.44±0.03 Å, ∠HCC=113.5±1.5°, ∠OCC=127.1±0.8° ground state −r(CH)=1.115±0.010 Å and r(CO)=1.210±0.005 Å assumed, r(CC)=1.505±0.015 Å, ∠HCC=115.5±1.5°, ∠OCC=123.8±0.4°.


Excited State Glyoxal Rotational Constant Rotational Analysis Parameter Ground State 
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Copyright information

© with the authors 1974

Authors and Affiliations

  • D. A. Ramsay
    • 1
  • C. Zauli
    • 1
  1. 1.Division of PhysicsNational Research Council of CanadaOttawaCanada

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