Chemistry · Coordination Chemistry

Which among the following coordination complexes will show the least C — O stretching frequency in its infrared (IR) spectrum due to maximum π-backbonding?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1[Fe(CO)4]2−✓
2[Co(CO)4]−
3[Mn(CO)6]+
4[Cr(CO)6]

Correct answer

[Fe(CO)4]2−

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Which among the following coordination complexes will show the least C — O stretching frequency in its infrared (IR) spectrum due to maximum π-backbonding?

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Which among the following coordination complexes will show the least C — O stretching frequency in its infrared (IR) spectrum due to maximum π-backbonding?

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