Скачать или смотреть Banana bond in boron hydrides and cyclopropane

Boron hydrides contain two types of bonds: 2c-2e bond and 3c-2e bond. 3c-2e bonds are electron deficient bonds. The bridging hydrogen atoms provide one electron each. This type of bond is called as 'banana bond'. The banana bond is weaker than terminal BH bond.
BH3 molecule has sp2 hybridization while diboranes are sp3 hybridized. The explanation is given in the video.
The electron distribution in other boron hydrides is also explained.
The banana bond formation in cyclopropane is also explained. Although cyclopropane is sp3 hybridized but sometimes its exocyclic bond have sp2 and endocyclic bonds have sp4 and sp5 characteristics.
Watch the video to understand Banana Bonding.
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