HeH: excimer compound.Chemistry textbooks used to say that the noble gases are called noble because they do not form compounds. Their nobility has been compromised for decades--under admittedly unusual conditions, they do compound. In the Nov. 11, PHYSICAL REVIEW LETTERS Physical Review Letters is one of the most prestigious journals in physics.[1] Since 1958, it has been published by the American Physical Society as an outgrowth of The Physical Review. , Thomas Moller, Michael Beland and Georg Zimmerer of the University of Hamburg As of 2006, the University of Hamburg supports 6 Collaborative Research Centres (Sonderforschungsbereiche, SFB), 6 Research Groups, 7 Research Training Groups (all funded by the DFG), 2 Max Planck Inter-national Research Schools, 13 Young Scientist Groups (Emmy-Noether-Programme, BMBF, in West Germany report evidence for the formation of the simplest possible noble-gas compound, helium hydride hydride Any of a class of compounds in which hydrogen is combined with another element. There are three basic types of hydrides: saline, metallic, and covalent. Saline hydrides, such as sodium hydride (NaH) and calcium hydride (CaH2 . It forms when a mixture of helium and hydrogen is energetically excited by ultraviolet radiation from a synchrotron synchrotron: see particle accelerator. synchrotron Cyclic particle accelerator in which the particle is confined to its orbit by a magnetic field. The strength of the magnetic field increases as the particle's momentum increases. . Noble-gas compounds are interesting to theoretical chemists for the information they give about compound formation, and to technologists for possible use in lasers. |
|
||||||||||||||||
Printer friendly
Cite/link
Email
Feedback
Reader Opinion