What are the approximate H-B-H bond angles in | vedclass

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(B) In diborane $(B_2H_6)$,there are two types of hydrogen atoms: terminal and bridging.The terminal $B-H$ bonds are normal covalent bonds,and the ang

Vedclass · Accepted Answer

$95^{\circ}, 120^{\circ}$

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(B) In diborane $(B_2H_6)$,there are two types of hydrogen atoms: terminal and bridging.The terminal $B-H$ bonds are normal covalent bonds,and the angle between them is approximately $120^{\circ}$.The bridging $B-H-B$ bonds involve $3c-2e$ (three-center two-electron) bonds,and the $H-B-H$ angle in the bridge is approximately $95^{\circ}$.Therefore,the bond angles are $95^{\circ}$ and $120^{\circ}$.

What are the approximate $H-B-H$ bond angles in diborane $(B_2H_6)$?

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