Using Wade's rules predict the structure type of [C₂ B₅ H₇] · ABC26IN1426
Subject: Inorganic Chemistry · Chapter: Organometallic Compounds · Topic: Cluster Compounds Wade Rules · Exam: CSIR NET DEC 2015 · Marks: 2 · Difficulty: Easy
Using Wade's rules predict the structure type of $\left[\mathrm{C}_{2} \mathrm{B}_{5} \mathrm{H}_{7}\right]$
(a)nido
(b)closos
(c)arachno
(d)hypho
Answer
Answer: B ✓ checked by 4AB · confidence high
Explanation
C₂B₅H₇: 7 vertices; skeletal electrons 2×3 (CH) + 5×2 (BH) = 16 = 8 pairs = n + 1 → closo (pentagonal bipyramid).
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