The cluster having arachno type structure is: · ABC26IN1361
Subject: Inorganic Chemistry · Chapter: Organometallic Compounds · Topic: Cluster Compounds Wade Rules · Exam: CSIR NET JUNE 2012 · Marks: 2 · Difficulty: Easy
The cluster having arachno type structure is:
(a)$\left[\mathrm{Os}_{5}(\mathrm{CO})_{16}\right]$
(b)$\left[\mathrm{Os}_{3}(\mathrm{CO})_{12}\right]$
(c)$\left[\operatorname{Ir}_{4}(\mathrm{CO})_{12}\right]$
(d)$\left[\mathrm{Rh}_{6}(\mathrm{CO})_{16}\right]$
Answer
Answer: B ✓ checked by 4AB · confidence high
Explanation
Os₃(CO)₁₂: 48 cluster electrons → 6 skeletal pairs for 3 vertices (n + 3) — arachno (b).
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