In addition, in the middle of the two opposite side walls, there is one atom of krypton. The unit cell of krypton monoxide is cuboid with a diamond base, with krypton atoms at the corners. In crystals of table salt, the unit cell has the shape of a cube in which the sodium and chlorine atoms, arranged alternately, are mounted on each corner, close enough to each other that they are bound by covalent (chemical) bonds. The smallest repetitive fragment of such structures, the basic 'building block,' is called a unit cell. Lata (IPC PAS).Ĭrystal lattices are built from atoms or molecules arranged in space in an orderly manner. This is a high pressure, but it can be achieved even in today's laboratories, by skillfully squeezing samples in diamond anvils," says Ph.D. "Our computer simulations suggest that crystals of krypton monoxide will be formed at a pressure in the range of 300 to 500 million atmospheres. In the field of solid-state physics, this theory is a basic tool for the description and study of the world of chemical molecules. Their search, funded by an OPUS grant from the Polish National Science Centre, involved using genetic algorithms and models built on the so-called density functional theory. The Polish chemists wondered if there were conditions in which krypton would not only bond chemically with another element, but also in which it would be capable of forming an extensive and stable crystal lattice. They were, however, only single, linear and small molecules of the hydrogen-carbon-krypton-carbon-hydrogen type. Oxygen does not exist there, nor does krypton."Ĭompounds of krypton have been produced in the laboratory under cryogenic conditions. According to current knowledge, the deep interiors of planets are the only place where there is sufficient pressure for its synthesis. "Our krypton monoxide, KrO, probably does not exist in nature. In the convention of the comic book it should, therefore, be called 'kryptoxide,' not 'kryptonite.' So if Superman's reading this, he can stay calm-at the moment, there's no cause for panic," says Dr. "The substance we are predicting is a compound of krypton with oxygen, not nitrogen. However, a publication in the journal Scientific Reports by a two-man team of theoretical chemists from the Institute of Physical Chemistry of the Polish Academy of Sciences (IPC PAS) in Warsaw, Poland, predict the synthesis of a new crystalline material in which atoms of krypton would be chemically bonded to another element. The planet's name is derived from the element krypton, with the atomic number of 36, a noble gas considered to be incapable of forming stable chemical compounds. Crystals of kryptonite, a material deadly to Superman and his race, were supposed to have been created within the planet Krypton, most likely under very high pressure.
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