Diborane () is a classic example of an electron-deficient molecular hydride. It readily reacts with Lewis bases like ammonia. Which of the following accurately describes its bonding structure that lea

Question

Diborane ($B_2H_6$) is a classic example of an electron-deficient molecular hydride. It readily reacts with Lewis bases like ammonia. Which of the following accurately describes its bonding structure that leads to this electron deficiency?

Prashant Kotian · Accepted Answer

Correct answer: C. Group 13 elements lack sufficient valence electrons to complete standard octets. In Diborane (), this deficiency forces the formation of multi-center bonds, specifically two 3-center-2-electron bridging hydrogen bonds (banana bonds), making the molecule a strong Lewis acid eager to accept electrons.

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