Question

carboranes are formed from boranes by replacement of ____ with ___ group​

Answer 1

Answer Explaination :-

The replacement of BH- group by CH group will happens. Thus two replacements lead to a neutral molecule Bn-2C2Hn. Thus the mixed hydrides of Boron and Carbon are formed these are said to be Carbaboranes or Carboranes. The general formula of carboranes or carbaboranes is Bn-2C2Hn.

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Answer 2

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❗Carboranes are electron-delocalized (non-classically bonded) clusters composed of boron, carbon and hydrogen atoms that may also contain other metallic and nonmetallic elements in the cluster framework.[1] Like many of the related boron hydrides, these clusters are polyhedra or fragments of polyhedra, and are similarly classified as closo-, nido-, arachno-, hypho-, etc., based on whether they represent a complete (closo-) polyhedron or a polyhedron that is missing one (nido-), two (arachno-), three (hypho-), or more vertices. Carboranes are a notable example of heteroboranes.❗