Explain structure of diborane and boric acid
Answers
Answer:
Structure of diborane
The two electrons of the hybrid orbitals in each of the boron atoms form 2 bonds with the 1s hydrogen atoms. Boric acid is a monobasic Lewis acid of boron with a chemical formula H3BO3. It is an acid-containing four atoms of oxygen, one atom of boron, and three atoms of hydrogen.
Diborane
The structure of Diborane molecule consists of four hydrogen atoms and that of two boron atoms coming on the same plane. In between these planes, there are said to be two dividing atoms of hydrogen. The boron atom is known to be sp3 hybridized and has four hybrid orbitals.
Boric acid
Molecular and Crystal Structure
The three oxygen atoms form a trigonal planar geometry around the boron. The B-O bond length is 136 pm and the O-H is 97 pm. The molecular point group is C3h. Crystalline boric acid consists of layers of B(OH)3 molecules held together by hydrogen bonds of length 272 pm.