How is borazole prepared in the laboratory?

Borazine can be synthesized by treating diborane and ammonia in a 1:2 ratio at 250–300 °C with a conversion of 50%.

Borazine can be prepared by Heating together boron trichloride and ammonium chloride. The initial product formed is trichloroborazine which on reducing with sodium borohydride yields borazine. Borazine ;is a highly polar molecule due to high electronegativity difference between boron and nitrogen atom.

Solution : Borazine is calle inorganic benzene. It is prepared by Heating the addition compounds of diborane with ammonia to `473K` .

Borazine is called ‘inorganic benzene’ Because the compound is isoelectronic and isostructural with benzene. The other similarities are it is a colourless liquid with aromatic smell. Borazine is said to be aromatic because the number of pi electrons obeys 4n+2 rule and the B-N bond lengths are all equal.

Borazines are also Starting materials for other potential ceramics such as boron carbonitrides: Borazine can also be used as a precursor to grow boron nitride thin films on surfaces, such as the nanomesh structure which is formed on rhodium.

(1) Borazine is an inorganic compound with the chemical formula (B₃N₃H₆). and also called Borazole. It is a heterocyclic compound, containing the 3-(BH) units and 3-(NH) units alternate.

Inorganic benzene(borazine ) is prepared by the reaction: 3B2H6+6NH3→3[BH2(NH3)2]+[BH4]−Heat 2B3N3H6+12H2.

Borazole is aromatic in nature.

Borazine with molecular formula H₆B₃N₃ Is known as inorganic benzene.

The compound Borazine is called inorganic benzene. Its formula is B₃N₃H₆. Inorganic benzene is also known as borazine which is an inorganic and cyclic compound. There are three BH units and three NH units alternate.

Laboratory method of preparation: Diborane is prepared in the laboratory by the Oxidation of sodium borohydride with iodine in diglyme as solvent.

Boron nitride is produced synthetically. Hexagonal boron nitride is obtained by the reacting boron trioxide ( B ₂O ₃) or boric acid ( H ₃BO ₃) with ammonia ( NH ₃) or urea ( CO(NH ₂) ₂) in a nitrogen atmosphere: B ₂O ₃ + 2 NH ₃ → 2 BN + 3 H ₂O (T = 900 °C) B(OH) ₃ + NH ₃ → BN + 3 H ₂O (T = 900 °C)

Explanation: Boron Nitride (BN) Is also called Inorganic graphite. Boron nitride is a chemical compound with chemical formula BN, consisting of equal numbers of boron and nitrogen atoms. BN is isoelectronic to a similarly structured carbon lattice and thus exists in various crystalline forms.

Borazine (B3N3H6) hydrolyses slowly according to following reaction: B3N3H6 + H2O(excess)= NH3 + H3BO3 + H2.

The key difference between borazine and benzene is that The borazine contains three boron atoms and three nitrogen atoms in the ring structure whereas the benzene contains six carbon atoms in the ring structure.

Note: Benzene and borazine are both resonating structures but due to dissimilar atoms present in borazine, it has less stability. Also, Each N=B bond present in a borazine ring is a polar bond which further reduces stability of the entire structure and makes it more reactive.

Therefore, borazole contains 12 sigma bonds and 3 pi bonds. Hence, the correct answer is option C. Borazole and benzene are isostructural and isoelectronic. Hence for this reason, the other name of borazole is inorganic benzene.

Borazole is electron deficient compound. 4.

Decomposition of some of the excess borazine to Produce methanol and a little ammonia-trimethoxyborane.

The borazine is formed when Ammonia and diborane Will react in a simple ratio of \[2:1\] at a high temperature. Ammonia contains a lone pair of electrons which gets attracted towards the vacant p orbitals of boron and leads to the formation of the final product borazine. Thus, the correct option is (C) .

Like organic benzene, Borazine does not give addition product.

Like organic benzene, Borazine does not give addition product.

Suggested that borazine is not aromatic Due to the polar B–N bond [11]. In the same line, magnetic susceptibility exaltation data, based on group increment values, indicate no aromaticity for borazine (−1.7 compared to benzene −13.7) [16].

Boron nitride is sometimes referred to as ‘inorganic graphite’ because Its structure is like graphite with alternating boron and nitrogen atoms replacing the carbon atoms in the hexagonal structure.

Borazine can be synthesized by Treating diborane and ammonia in a 1:2 ratio at 250–300 °C with a conversion of 50%. An alternative more efficient route begins with sodium borohydride and ammonium sulfate: 6 NaBH₄ + 3 (NH₄)₂SO₄ → 2 B₃N₃H₆ + 3 Na₂SO₄ + 18 H.

Noun Chemistry. A colorless liquid, B3N3H6, that hydrolyzes with water to form boron hydrides. It is the inorganic analogue of benzene with similar physical properties.

Noun Chemistry. A colorless liquid, B3N3H6, that hydrolyzes with water to form boron hydrides. It is the inorganic analogue of benzene with similar physical properties.