The structure of diborane B 2 H 6 is given below. Identify the bond angles x , y . In diborane, which bonds are commonly known as banana-bonds

Question

The structure of diborane B 2 H 6 is given below. Identify the bond angles x , y . In diborane, which bonds are commonly known as banana-bonds, x = 101 ° , y = 118 ° and 2 - centered - 3 - electron bonds, x = 120 ° , y = 97 ° and 3 - centered - 2 - electron bonds, x = 118 ° , y = 79 ° and ionic bond between the two B's, x = 79 ° , y = 118 ° and ionic bond between the two B's

MARKS App · Accepted Answer

The diborane is an electron deficient molecule. The two boron atoms and four terminal hydrogen atoms of the molecule are in the same plane. The bridging B - H bonds are 3 - centered 2 - electron bonds whereas the four B - H bonds are 2 - centered 2 - electrons bonds and the bridging H - B - H bond angle is 97 ° while the terminal H - B - H bond angle is 120 ° .

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