measuring the relative CO qilantum yields from kctenc photolysis as a function of photolysis wavelength WC have determined the threshold energy at X0 for C112CO('AI) -+CHH(33~i) + CO(t -+ \, ) to be 75.7 + 1.0 kcal/mole. This corrc-SpOl'ldS to a VdlC Of 40.7 f 1.0 kcal/molc for &Hpzss[ C112(3B,)]. B
The threshold for photodissociation of ketene into CH2(a1A1) and the CH2(a1A1—X3B1) energy separation
✍ Scribed by D. Feldmann; K. Meier; H. Zacharias; K.H. Welge
- Publisher
- Elsevier Science
- Year
- 1978
- Tongue
- English
- Weight
- 780 KB
- Volume
- 59
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
✦ Synopsis
The photodissociation of ketene has been measured in the threshold region of the process CHaCOa 'Ar) t hv 4 CHa(Z 'A,) + CO betxeen 310 and 355 mu_ The ketene has been dissociated by the tunable light from a frequency doubhxl dye laser. The singlet CHa(5'At) in its vibrational ground state (O,O,O) and frost excited (0,l.O) state has &en
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The radiative lifetime Trad of the CH2(g 'BI) state has been determined using the CHz(g 'Bl +y lAl) emission produced by electrons incident on CH4. The value found for Trad is 1.90(%0.15) X lo\* s. A second lifetime component, 8.5(\* 1.0) X LO\* S, has been measured which is related to either cascad