The $\mathrm{v}_{\mathrm{O}-\mathrm{O}}$ resonance Raman stretching frequency (in $\mathrm{cm}^{-1}$ ) of the $\mathrm{O}_{2}$ coordinated to iron centre in oxyhemoglobin is nearly
(a)1100
(b)850
(c)1550
(d)1950
Answer
Answer: A ✓ checked by 4AB · confidence high
Explanation
Bound O₂ in oxyhaemoglobin is superoxide-like, ν(O–O) ≈ 1100 cm⁻¹ (a).