ν(Fe−C) A₁'
415 sm⁻¹
Eng kuchli
ν(C≡O_ekv)
2014 sm⁻¹
Ekvatorial
ν(C≡O_aks)
2034 sm⁻¹
Aksial > ekv
k(Fe−C)
2.35 mdyn/Å
Mustahkam
Aksial vs Ekvatorial: ν(C≡O_aks) = 2034 sm⁻¹ > ν(C≡O_ekv) = 2014 sm⁻¹ — aksial CO mustahkamroq (kuchsizroq π-back-donation).
Ar⁺ lazer (514.5 nm), 10−30 mW. D₃h simmetriya. Aksial/ekvatorial CO farqlanadi.
ν(Fe−C) = 415 sm⁻¹ (A₁', 100%). Ekvatorial 380, aksial 430 sm⁻¹.
ν(C≡O_ekv) = 2014 sm⁻¹ (A₁', 85%). k(C≡O_ekv) = 17.8 mdyn/Å.
ν(C≡O_aks) = 2034 sm⁻¹ (A₁', 60%). Aksial CO mustahkamroq.