Question

In the reaction, $2X + B_2H_6 \longrightarrow [BH_2(X)_2] [BH_4]$ the amine(s) X is/are

• A. $NH_3$
• B. $CH_3NH_2$
• C. $(CH_3)_2NH$
• D. $(CH_3)_3N$

Answer 1

Answer: (C)

$(CH_3)_2NH$

Answer 2

Diborane $(B_2H_6)$ undergoes unsymmetric cleavage with NH3, primary and secondary amine while tertiary amine brings about symmetrical cleavage of $B_2H_6$ as :