The cluster types of [Fe₅(CO)₁₄N]⁻ and [Co₆(CO)₁₃N]⁻ are, respectively, (1) nido-, nido (2) nido-, closo (3)… · ABC26IN0284
Subject: Inorganic Chemistry · Chapter: Organometallic Compounds · Topic: Cluster Compounds Wade Rules · Exam: CSIR NET 2019 · Marks: 2 · Difficulty: Medium
The cluster types of $[\mathrm{Fe_5(CO)_{14}N}]^-$ and $[\mathrm{Co_6(CO)_{13}N}]^-$ are, respectively, (1) nido-, nido (2) nido-, closo (3) closo-, nido (4) closo-, closo
Answer
SELF-PRACTICE — the source book printed no answer.
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Explanation
[Fe5(CO)14N]- TEC= (8x5) + (14×2)+5+1 = 40+28+6 =74 PEC =74-(12x5)=14 PEC/2= 14/2 =7 ie.n+2 Thus, it is a nido cluster. [Co6(CO)13N]- TEC= (9x6) + (13x2)+5+1 = 54+26+6 = 86 PEC=86 - (6x12) = 14 PEC/2=14/2 = 7 i.e n+1 Thus, it is a closo cluster.
Explanation as extracted from the printed page; notation may be imperfect.
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