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Grade: 12th pass

                        

Which of the following has highest stretching vibrational frequency for C–O bond (1) [Fe(CO)4]–2 (2) [Co(CO)4]- (3) [Ni(CO)4] (4) [Cu(CO)4]+

2 years ago

Answers : (1)

Avni Chauhan
askIITians Faculty
247 Points
							The electrons from the metal are shifted in the antibonding orbitals of CO. Thus, reducing the stretching frequency. Higher is the negative charge on the metal atom, lower the frequency.
therefore, (D) is the correct answer
2 years ago
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