The IR stretchin frequencies of free CO, and CO in [V(CO)6]-, [Cr(CO)6] and [Mn(CO)6]+ are 2143 cm^-1, 1860 cm^-1, 2000 cm^-1 and 2090 cm^-1, respectively. Then correct statement about metal carbonyls

Question

The IR stretchin frequencies of free CO, and CO in [V(CO)6]-, [Cr(CO)6] and [Mn(CO)6]+ are 2143 cm^-1, 1860 cm^-1, 2000 cm^-1 and 2090 cm^-1, respectively. Then correct statement about metal carbonyls is :

Prashant Kotian · Accepted Answer

Correct answer: B. In metal carbonyls : Higher the negative oxidation state of central metal Bond length of C-O 1 / Bond order of CO Bond order of M-C bond.

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