Which of the following best describes the multi-center bonding architecture present in diborane ()? — Chemical Bonding Chemistry Question

💡 Solution & Explanation

Diborane is an electron-deficient molecule. It contains four standard terminal $B-H$ bonds which are standard 2-center-2-electron ($2c-2e$) bonds. The two bridging hydrogen atoms connect the two boron atoms via two 3-center-2-electron ($3c-2e$) "banana" bonds.