DIAMOND SYNTHESIS METHOD Russian patent published in 2019 - IPC C01B32/25 

FIELD: chemistry.

SUBSTANCE: invention can be used in production of artificial diamonds. Molecule with a tetrahedrane structure from a series containing benzvalene, 3,4-diazabenzvalene or 2,3,4-methynyl-cyclobutanone, is reacted with a carbon atom, which does not contain radical impurities obtained from a hydrocarbon source selected from a group comprising alkanes, cycloalkanes and a cubane, by exposing said hydrocarbon to high-energy discharge. Reaction is carried out in a vapour phase or in a solid state. To carry out the reaction in the vapour phase, said streams of reagents are formed in an inert carrier gas and are combined directly near the substrate. Diamond structures are obtained, from which a diamond mass is formed on the substrate. In the solid state, a homogeneous mixture of said molecules with a tetrahedron and cubane structure in molar ratio of approximately 8:1 is placed in a high-energy discharge cell for a period of time sufficient to complete the diamond formation reaction.

EFFECT: invention enables to obtain ultra-pure diamond without using high pressures and temperatures, as well as without subsequent purification of the obtained product.

13 cl, 2 ex