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Phosphorescence transition rate from excited state no. 1 (Triplet->singlet transition, high-temperature limit) Transition energy: 8.737 eV or 141.915 nm Length gauge: Partial rates (H_SO): X-polarization 1.45786E+05 Transition moment : 1.434E-02 Length gauge: Partial rates (H_SO): Y-polarization 0.0000 Transition moment : 0.00 Length gauge: Partial rates (H_SO): Z-polarization 9494.0 Transition moment : 3.660E-03 Phosphorescence - length gauge: Oscillator strength (/2PI) (H_SO) 7.461901E-06 Dipole strength [a.u.] (H_SO) 2.190450E-04 Dipole strength E-40 [esu**2 cm**2] 1.415134E+01 Total transition rate (H_SO) 5.175992E+04 s-1 Total phosphorescence lifetime (H_SO) 1.931997E-05 s
If we use the result of output file, we will find that: lifetime=1.5/((7.461901E-06)*(2*PI)*(1/(141.915E-7)^2))=6.44345082456349E-06 s, which is the 1/3 of 1.931997E-05 s. What's more, we found that this phenomenon is common. Thus, I wanna know this factor 1/3 is the bug or the feature of Dalton Program?
The input and output files are following: