ABC26IN0239 · Organometallic Compounds

Subject: Inorganic Chemistry · Chapter: Organometallic Compounds · Topic: Metal Carbonyls · Exam: CSIR-NET 2013 · Marks: 2 · Difficulty: Easy

The number of metal-metal bonds in $\mathrm{Ir_4(CO)_{12}}$ is
(a)4
(b)6
(c)10
(d)12
Answer
Answer (as printed): B
Explanation
$A = \text{TVE} = 60$ $B = (n\times18) - \text{TVE} = 72-60=12$ Metal-metal bonds $= B/2 = 12/2 = 6$

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